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03d4d615 1 parent 94c7aa5e

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client_id = '_Z9uOc1SUzIz2Yb_n4dS'
client_secret = 'yLXuXOY5AH'
channelAccessToken= 'fc9C6uXxCpz92Oh9potEB4QR9cywO1Bbijego0VAgIrrpR/TfB2b+Mmy5M0xm6jyG7E8CNBIwDapxpGbICI89xuRREAq7qdetuRdtaqcYGz37RJ03vdbV2NXKIVSrWzmzlanzIDYBwEddWqTlamDNAdB04t89/1O/w1cDnyilFU='
channelSecret= 'dd8943fe60cb7bf15beafa7e1acf8c71'
accesskeyid='AKIAV6255WSP76ANIN5Z'
secretaccesskey=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
\ No newline at end of file
.env
\ No newline at end of file
.env PanguinKeyPair.pem
\ No newline at end of file
......
......@@ -2,8 +2,9 @@
<project version="4">
<component name="ChangeListManager">
<list default="true" id="5c08ae96-2f87-46c1-b81d-f30e494ce252" name="Default Changelist" comment="">
<change beforePath="$PROJECT_DIR$/.gitignore" beforeDir="false" afterPath="$PROJECT_DIR$/.gitignore" afterDir="false" />
<change beforePath="$PROJECT_DIR$/.idea/workspace.xml" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/workspace.xml" afterDir="false" />
<change beforePath="$PROJECT_DIR$/QR코드.JPG" beforeDir="false" />
<change beforePath="$PROJECT_DIR$/app.js" beforeDir="false" afterPath="$PROJECT_DIR$/app.js" afterDir="false" />
<change beforePath="$PROJECT_DIR$/package-lock.json" beforeDir="false" afterPath="$PROJECT_DIR$/package-lock.json" afterDir="false" />
<change beforePath="$PROJECT_DIR$/package.json" beforeDir="false" afterPath="$PROJECT_DIR$/package.json" afterDir="false" />
</list>
......@@ -34,6 +35,16 @@
</list>
</option>
</component>
<component name="RunManager">
<configuration name="app.js" type="NodeJSConfigurationType" temporary="true" nameIsGenerated="true" path-to-js-file="app.js" working-dir="$PROJECT_DIR$">
<method v="2" />
</configuration>
<recent_temporary>
<list>
<item itemvalue="Node.js.app.js" />
</list>
</recent_temporary>
</component>
<component name="SvnConfiguration">
<configuration />
</component>
......@@ -45,7 +56,8 @@
<option name="presentableId" value="Default" />
<updated>1573898555947</updated>
<workItem from="1573898557106" duration="89000" />
<workItem from="1573899005304" duration="287000" />
<workItem from="1573899005304" duration="7410000" />
<workItem from="1574071758382" duration="6285000" />
</task>
<servers />
</component>
......
-----BEGIN RSA PRIVATE KEY-----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-----END RSA PRIVATE KEY-----
\ No newline at end of file
//aws polly tts
const AWS = require('aws-sdk');
const fs=require('fs');
const { LineClient } = require('messaging-api-line');
require("dotenv").config({path : '.env'});
var express = require('express');
var app = express();
const line = require('@line/bot-sdk');
//papago api
var request = require('request');
......@@ -12,7 +15,14 @@ var request = require('request');
var translate_api_url = 'https://openapi.naver.com/v1/papago/n2mt';
//언어감지 api_url
var languagedetect_api_url = 'https://openapi.naver.com/v1/papago/detectLangs'
var languagedetect_api_url = 'https://openapi.naver.com/v1/papago/detectLangs';
//polly
const Polly =new AWS.Polly({
signatureVersion: 'v4',
region: 'ap-northeast-2',
accessKeyId:process.env.accesskeyid,
secretAccessKey:process.env.secretaccesskey
});
// Naver Auth Key
//새로 발급받은 naver papago api id, pw 입력
......@@ -26,7 +36,10 @@ const config = {
// create LINE SDK client
const client = new line.Client(config);
const for_audio_client=LineClient.connect({
channelAccessToken: process.env.channelAccessToken,
channelSecret: process.env.channelSecret,
});
// create Express app
// about Express itself: https://expressjs.com/
......@@ -93,6 +106,7 @@ function handleEvent(event) {
console.log(result.text);
//번역된 문장 보내기
client.replyMessage(event.replyToken,result).then(resolve).catch(reject);
}
});
}
......
#!/bin/sh
basedir=$(dirname "$(echo "$0" | sed -e 's,\\,/,g')")
case `uname` in
*CYGWIN*) basedir=`cygpath -w "$basedir"`;;
esac
if [ -x "$basedir/node" ]; then
"$basedir/node" "$basedir/../google-gax/build/tools/compileProtos.js" "$@"
ret=$?
else
node "$basedir/../google-gax/build/tools/compileProtos.js" "$@"
ret=$?
fi
exit $ret
@IF EXIST "%~dp0\node.exe" (
"%~dp0\node.exe" "%~dp0\..\google-gax\build\tools\compileProtos.js" %*
) ELSE (
@SETLOCAL
@SET PATHEXT=%PATHEXT:;.JS;=;%
node "%~dp0\..\google-gax\build\tools\compileProtos.js" %*
)
\ No newline at end of file
#!/bin/sh
basedir=$(dirname "$(echo "$0" | sed -e 's,\\,/,g')")
case `uname` in
*CYGWIN*) basedir=`cygpath -w "$basedir"`;;
esac
if [ -x "$basedir/node" ]; then
"$basedir/node" "$basedir/../google-p12-pem/build/src/bin/gp12-pem.js" "$@"
ret=$?
else
node "$basedir/../google-p12-pem/build/src/bin/gp12-pem.js" "$@"
ret=$?
fi
exit $ret
@IF EXIST "%~dp0\node.exe" (
"%~dp0\node.exe" "%~dp0\..\google-p12-pem\build\src\bin\gp12-pem.js" %*
) ELSE (
@SETLOCAL
@SET PATHEXT=%PATHEXT:;.JS;=;%
node "%~dp0\..\google-p12-pem\build\src\bin\gp12-pem.js" %*
)
\ No newline at end of file
#!/bin/sh
basedir=$(dirname "$(echo "$0" | sed -e 's,\\,/,g')")
case `uname` in
*CYGWIN*) basedir=`cygpath -w "$basedir"`;;
esac
if [ -x "$basedir/node" ]; then
"$basedir/node" "$basedir/../protobufjs/bin/pbjs" "$@"
ret=$?
else
node "$basedir/../protobufjs/bin/pbjs" "$@"
ret=$?
fi
exit $ret
@IF EXIST "%~dp0\node.exe" (
"%~dp0\node.exe" "%~dp0\..\protobufjs\bin\pbjs" %*
) ELSE (
@SETLOCAL
@SET PATHEXT=%PATHEXT:;.JS;=;%
node "%~dp0\..\protobufjs\bin\pbjs" %*
)
\ No newline at end of file
#!/bin/sh
basedir=$(dirname "$(echo "$0" | sed -e 's,\\,/,g')")
case `uname` in
*CYGWIN*) basedir=`cygpath -w "$basedir"`;;
esac
if [ -x "$basedir/node" ]; then
"$basedir/node" "$basedir/../protobufjs/bin/pbts" "$@"
ret=$?
else
node "$basedir/../protobufjs/bin/pbts" "$@"
ret=$?
fi
exit $ret
@IF EXIST "%~dp0\node.exe" (
"%~dp0\node.exe" "%~dp0\..\protobufjs\bin\pbts" %*
) ELSE (
@SETLOCAL
@SET PATHEXT=%PATHEXT:;.JS;=;%
node "%~dp0\..\protobufjs\bin\pbts" %*
)
\ No newline at end of file
#!/bin/sh
basedir=$(dirname "$(echo "$0" | sed -e 's,\\,/,g')")
case `uname` in
*CYGWIN*) basedir=`cygpath -w "$basedir"`;;
esac
if [ -x "$basedir/node" ]; then
"$basedir/node" "$basedir/../semver/bin/semver.js" "$@"
ret=$?
else
node "$basedir/../semver/bin/semver.js" "$@"
ret=$?
fi
exit $ret
@IF EXIST "%~dp0\node.exe" (
"%~dp0\node.exe" "%~dp0\..\semver\bin\semver.js" %*
) ELSE (
@SETLOCAL
@SET PATHEXT=%PATHEXT:;.JS;=;%
node "%~dp0\..\semver\bin\semver.js" %*
)
\ No newline at end of file
This diff is collapsed. Click to expand it.
This diff is collapsed. Click to expand it.
[//]: # "This README.md file is auto-generated, all changes to this file will be lost."
[//]: # "To regenerate it, use `python -m synthtool`."
<img src="https://avatars2.githubusercontent.com/u/2810941?v=3&s=96" alt="Google Cloud Platform logo" title="Google Cloud Platform" align="right" height="96" width="96"/>
# [Google Cloud Text-to-Speech: Node.js Client](https://github.com/googleapis/nodejs-text-to-speech)
[![release level](https://img.shields.io/badge/release%20level-alpha-orange.svg?style=flat)](https://cloud.google.com/terms/launch-stages)
[![npm version](https://img.shields.io/npm/v/@google-cloud/text-to-speech.svg)](https://www.npmjs.org/package/@google-cloud/text-to-speech)
[![codecov](https://img.shields.io/codecov/c/github/googleapis/nodejs-text-to-speech/master.svg?style=flat)](https://codecov.io/gh/googleapis/nodejs-text-to-speech)
Cloud Text-to-Speech API client for Node.js
* [Google Cloud Text-to-Speech Node.js Client API Reference][client-docs]
* [Google Cloud Text-to-Speech Documentation][product-docs]
* [github.com/googleapis/nodejs-text-to-speech](https://github.com/googleapis/nodejs-text-to-speech)
Read more about the client libraries for Cloud APIs, including the older
Google APIs Client Libraries, in [Client Libraries Explained][explained].
[explained]: https://cloud.google.com/apis/docs/client-libraries-explained
**Table of contents:**
* [Quickstart](#quickstart)
* [Before you begin](#before-you-begin)
* [Installing the client library](#installing-the-client-library)
* [Using the client library](#using-the-client-library)
* [Samples](#samples)
* [Versioning](#versioning)
* [Contributing](#contributing)
* [License](#license)
## Quickstart
### Before you begin
1. [Select or create a Cloud Platform project][projects].
1. [Enable billing for your project][billing].
1. [Enable the Google Cloud Text-to-Speech API][enable_api].
1. [Set up authentication with a service account][auth] so you can access the
API from your local workstation.
### Installing the client library
```bash
npm install @google-cloud/text-to-speech
```
### Using the client library
```javascript
// Imports the Google Cloud client library
const textToSpeech = require('@google-cloud/text-to-speech');
// Import other required libraries
const fs = require('fs');
const util = require('util');
async function main() {
// Creates a client
const client = new textToSpeech.TextToSpeechClient();
// The text to synthesize
const text = 'Hello, world!';
// Construct the request
const request = {
input: {text: text},
// Select the language and SSML Voice Gender (optional)
voice: {languageCode: 'en-US', ssmlGender: 'NEUTRAL'},
// Select the type of audio encoding
audioConfig: {audioEncoding: 'MP3'},
};
// Performs the Text-to-Speech request
const [response] = await client.synthesizeSpeech(request);
// Write the binary audio content to a local file
const writeFile = util.promisify(fs.writeFile);
await writeFile('output.mp3', response.audioContent, 'binary');
console.log('Audio content written to file: output.mp3');
}
```
## Samples
Samples are in the [`samples/`](https://github.com/googleapis/nodejs-text-to-speech/tree/master/samples) directory. The samples' `README.md`
has instructions for running the samples.
| Sample | Source Code | Try it |
| --------------------------- | --------------------------------- | ------ |
| Audio Profile | [source code](https://github.com/googleapis/nodejs-text-to-speech/blob/master/samples/audioProfile.js) | [![Open in Cloud Shell][shell_img]](https://console.cloud.google.com/cloudshell/open?git_repo=https://github.com/googleapis/nodejs-text-to-speech&page=editor&open_in_editor=samples/audioProfile.js,samples/README.md) |
| List Voices | [source code](https://github.com/googleapis/nodejs-text-to-speech/blob/master/samples/listVoices.js) | [![Open in Cloud Shell][shell_img]](https://console.cloud.google.com/cloudshell/open?git_repo=https://github.com/googleapis/nodejs-text-to-speech&page=editor&open_in_editor=samples/listVoices.js,samples/README.md) |
| Quickstart | [source code](https://github.com/googleapis/nodejs-text-to-speech/blob/master/samples/quickstart.js) | [![Open in Cloud Shell][shell_img]](https://console.cloud.google.com/cloudshell/open?git_repo=https://github.com/googleapis/nodejs-text-to-speech&page=editor&open_in_editor=samples/quickstart.js,samples/README.md) |
| Ssml Addresses | [source code](https://github.com/googleapis/nodejs-text-to-speech/blob/master/samples/ssmlAddresses.js) | [![Open in Cloud Shell][shell_img]](https://console.cloud.google.com/cloudshell/open?git_repo=https://github.com/googleapis/nodejs-text-to-speech&page=editor&open_in_editor=samples/ssmlAddresses.js,samples/README.md) |
| Synthesize | [source code](https://github.com/googleapis/nodejs-text-to-speech/blob/master/samples/synthesize.js) | [![Open in Cloud Shell][shell_img]](https://console.cloud.google.com/cloudshell/open?git_repo=https://github.com/googleapis/nodejs-text-to-speech&page=editor&open_in_editor=samples/synthesize.js,samples/README.md) |
The [Google Cloud Text-to-Speech Node.js Client API Reference][client-docs] documentation
also contains samples.
## Versioning
This library follows [Semantic Versioning](http://semver.org/).
This library is considered to be in **alpha**. This means it is still a
work-in-progress and under active development. Any release is subject to
backwards-incompatible changes at any time.
More Information: [Google Cloud Platform Launch Stages][launch_stages]
[launch_stages]: https://cloud.google.com/terms/launch-stages
## Contributing
Contributions welcome! See the [Contributing Guide](https://github.com/googleapis/nodejs-text-to-speech/blob/master/CONTRIBUTING.md).
## License
Apache Version 2.0
See [LICENSE](https://github.com/googleapis/nodejs-text-to-speech/blob/master/LICENSE)
[client-docs]: https://googleapis.dev/nodejs/text-to-speech/latest
[product-docs]: https://cloud.google.com/text-to-speech
[shell_img]: https://gstatic.com/cloudssh/images/open-btn.png
[projects]: https://console.cloud.google.com/project
[billing]: https://support.google.com/cloud/answer/6293499#enable-billing
[enable_api]: https://console.cloud.google.com/flows/enableapi?apiid=texttospeech.googleapis.com
[auth]: https://cloud.google.com/docs/authentication/getting-started
This diff could not be displayed because it is too large.
This diff could not be displayed because it is too large.
import * as v1beta1 from './v1beta1';
import * as v1 from './v1';
declare const TextToSpeechClient: typeof v1.TextToSpeechClient;
export { v1, v1beta1, TextToSpeechClient };
declare const _default: {
v1: typeof v1;
v1beta1: typeof v1beta1;
TextToSpeechClient: typeof v1.TextToSpeechClient;
};
export default _default;
"use strict";
// Copyright 2019 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// https://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
// ** This file is automatically generated by gapic-generator-typescript. **
// ** https://github.com/googleapis/gapic-generator-typescript **
// ** All changes to this file may be overwritten. **
Object.defineProperty(exports, "__esModule", { value: true });
const v1beta1 = require("./v1beta1");
exports.v1beta1 = v1beta1;
const v1 = require("./v1");
exports.v1 = v1;
const TextToSpeechClient = v1.TextToSpeechClient;
exports.TextToSpeechClient = TextToSpeechClient;
// For compatibility with JavaScript libraries we need to provide this default export:
// tslint:disable-next-line no-default-export
exports.default = { v1, v1beta1, TextToSpeechClient };
//# sourceMappingURL=index.js.map
\ No newline at end of file
{"version":3,"file":"index.js","sourceRoot":"","sources":["../../src/index.ts"],"names":[],"mappings":";AAAA,4BAA4B;AAC5B,EAAE;AACF,kEAAkE;AAClE,mEAAmE;AACnE,0CAA0C;AAC1C,EAAE;AACF,kDAAkD;AAClD,EAAE;AACF,sEAAsE;AACtE,oEAAoE;AACpE,2EAA2E;AAC3E,sEAAsE;AACtE,iCAAiC;AACjC,EAAE;AACF,4EAA4E;AAC5E,iEAAiE;AACjE,qDAAqD;;AAErD,qCAAqC;AAIzB,0BAAO;AAHnB,2BAA2B;AAGnB,gBAAE;AADV,MAAM,kBAAkB,GAAG,EAAE,CAAC,kBAAkB,CAAC;AAC5B,gDAAkB;AACvC,sFAAsF;AACtF,6CAA6C;AAC7C,kBAAe,EAAC,EAAE,EAAE,OAAO,EAAE,kBAAkB,EAAC,CAAC"}
\ No newline at end of file
export { TextToSpeechClient } from './text_to_speech_client';
"use strict";
// Copyright 2019 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// https://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
// ** This file is automatically generated by gapic-generator-typescript. **
// ** https://github.com/googleapis/gapic-generator-typescript **
// ** All changes to this file may be overwritten. **
Object.defineProperty(exports, "__esModule", { value: true });
var text_to_speech_client_1 = require("./text_to_speech_client");
exports.TextToSpeechClient = text_to_speech_client_1.TextToSpeechClient;
//# sourceMappingURL=index.js.map
\ No newline at end of file
{"version":3,"file":"index.js","sourceRoot":"","sources":["../../../src/v1/index.ts"],"names":[],"mappings":";AAAA,4BAA4B;AAC5B,EAAE;AACF,kEAAkE;AAClE,mEAAmE;AACnE,0CAA0C;AAC1C,EAAE;AACF,kDAAkD;AAClD,EAAE;AACF,sEAAsE;AACtE,oEAAoE;AACpE,2EAA2E;AAC3E,sEAAsE;AACtE,iCAAiC;AACjC,EAAE;AACF,4EAA4E;AAC5E,iEAAiE;AACjE,qDAAqD;;AAErD,iEAA2D;AAAnD,qDAAA,kBAAkB,CAAA"}
\ No newline at end of file
import * as gax from 'google-gax';
import { Callback, ClientOptions } from 'google-gax';
import * as protosTypes from '../../protos/protos';
/**
* Service that implements Google Cloud Text-to-Speech API.
* @class
* @memberof v1
*/
export declare class TextToSpeechClient {
private _descriptors;
private _textToSpeechStub;
private _innerApiCalls;
private _terminated;
auth: gax.GoogleAuth;
/**
* Construct an instance of TextToSpeechClient.
*
* @param {object} [options] - The configuration object. See the subsequent
* parameters for more details.
* @param {object} [options.credentials] - Credentials object.
* @param {string} [options.credentials.client_email]
* @param {string} [options.credentials.private_key]
* @param {string} [options.email] - Account email address. Required when
* using a .pem or .p12 keyFilename.
* @param {string} [options.keyFilename] - Full path to the a .json, .pem, or
* .p12 key downloaded from the Google Developers Console. If you provide
* a path to a JSON file, the projectId option below is not necessary.
* NOTE: .pem and .p12 require you to specify options.email as well.
* @param {number} [options.port] - The port on which to connect to
* the remote host.
* @param {string} [options.projectId] - The project ID from the Google
* Developer's Console, e.g. 'grape-spaceship-123'. We will also check
* the environment variable GCLOUD_PROJECT for your project ID. If your
* app is running in an environment which supports
* {@link https://developers.google.com/identity/protocols/application-default-credentials Application Default Credentials},
* your project ID will be detected automatically.
* @param {function} [options.promise] - Custom promise module to use instead
* of native Promises.
* @param {string} [options.apiEndpoint] - The domain name of the
* API remote host.
*/
constructor(opts?: ClientOptions);
/**
* The DNS address for this API service.
*/
static get servicePath(): string;
/**
* The DNS address for this API service - same as servicePath(),
* exists for compatibility reasons.
*/
static get apiEndpoint(): string;
/**
* The port for this API service.
*/
static get port(): number;
/**
* The scopes needed to make gRPC calls for every method defined
* in this service.
*/
static get scopes(): string[];
getProjectId(): Promise<string>;
getProjectId(callback: Callback<string, undefined, undefined>): void;
listVoices(request: protosTypes.google.cloud.texttospeech.v1.IListVoicesRequest, options?: gax.CallOptions): Promise<[protosTypes.google.cloud.texttospeech.v1.IListVoicesResponse, protosTypes.google.cloud.texttospeech.v1.IListVoicesRequest | undefined, {} | undefined]>;
listVoices(request: protosTypes.google.cloud.texttospeech.v1.IListVoicesRequest, options: gax.CallOptions, callback: Callback<protosTypes.google.cloud.texttospeech.v1.IListVoicesResponse, protosTypes.google.cloud.texttospeech.v1.IListVoicesRequest | undefined, {} | undefined>): void;
synthesizeSpeech(request: protosTypes.google.cloud.texttospeech.v1.ISynthesizeSpeechRequest, options?: gax.CallOptions): Promise<[protosTypes.google.cloud.texttospeech.v1.ISynthesizeSpeechResponse, (protosTypes.google.cloud.texttospeech.v1.ISynthesizeSpeechRequest | undefined), {} | undefined]>;
synthesizeSpeech(request: protosTypes.google.cloud.texttospeech.v1.ISynthesizeSpeechRequest, options: gax.CallOptions, callback: Callback<protosTypes.google.cloud.texttospeech.v1.ISynthesizeSpeechResponse, protosTypes.google.cloud.texttospeech.v1.ISynthesizeSpeechRequest | undefined, {} | undefined>): void;
/**
* Terminate the GRPC channel and close the client.
*
* The client will no longer be usable and all future behavior is undefined.
*/
close(): Promise<void>;
}
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\ No newline at end of file
export declare const interfaces: {
"google.cloud.texttospeech.v1.TextToSpeech": {
"retry_codes": {
"non_idempotent": never[];
"idempotent": string[];
};
"retry_params": {
"default": {
"initial_retry_delay_millis": number;
"retry_delay_multiplier": number;
"max_retry_delay_millis": number;
"initial_rpc_timeout_millis": number;
"rpc_timeout_multiplier": number;
"max_rpc_timeout_millis": number;
"total_timeout_millis": number;
};
};
"methods": {
"ListVoices": {
"timeout_millis": number;
"retry_codes_name": string;
"retry_params_name": string;
};
"SynthesizeSpeech": {
"timeout_millis": number;
"retry_codes_name": string;
"retry_params_name": string;
};
};
};
};
{
"interfaces": {
"google.cloud.texttospeech.v1.TextToSpeech": {
"retry_codes": {
"non_idempotent": [],
"idempotent": [
"DEADLINE_EXCEEDED",
"UNAVAILABLE"
]
},
"retry_params": {
"default": {
"initial_retry_delay_millis": 100,
"retry_delay_multiplier": 1.3,
"max_retry_delay_millis": 60000,
"initial_rpc_timeout_millis": 20000,
"rpc_timeout_multiplier": 1,
"max_rpc_timeout_millis": 20000,
"total_timeout_millis": 600000
}
},
"methods": {
"ListVoices": {
"timeout_millis": 600000,
"retry_codes_name": "idempotent",
"retry_params_name": "default"
},
"SynthesizeSpeech": {
"timeout_millis": 600000,
"retry_codes_name": "idempotent",
"retry_params_name": "default"
}
}
}
}
}
export { TextToSpeechClient } from './text_to_speech_client';
"use strict";
// Copyright 2019 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// https://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
// ** This file is automatically generated by gapic-generator-typescript. **
// ** https://github.com/googleapis/gapic-generator-typescript **
// ** All changes to this file may be overwritten. **
Object.defineProperty(exports, "__esModule", { value: true });
var text_to_speech_client_1 = require("./text_to_speech_client");
exports.TextToSpeechClient = text_to_speech_client_1.TextToSpeechClient;
//# sourceMappingURL=index.js.map
\ No newline at end of file
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\ No newline at end of file
import * as gax from 'google-gax';
import { Callback, ClientOptions } from 'google-gax';
import * as protosTypes from '../../protos/protos';
/**
* Service that implements Google Cloud Text-to-Speech API.
* @class
* @memberof v1beta1
*/
export declare class TextToSpeechClient {
private _descriptors;
private _textToSpeechStub;
private _innerApiCalls;
private _terminated;
auth: gax.GoogleAuth;
/**
* Construct an instance of TextToSpeechClient.
*
* @param {object} [options] - The configuration object. See the subsequent
* parameters for more details.
* @param {object} [options.credentials] - Credentials object.
* @param {string} [options.credentials.client_email]
* @param {string} [options.credentials.private_key]
* @param {string} [options.email] - Account email address. Required when
* using a .pem or .p12 keyFilename.
* @param {string} [options.keyFilename] - Full path to the a .json, .pem, or
* .p12 key downloaded from the Google Developers Console. If you provide
* a path to a JSON file, the projectId option below is not necessary.
* NOTE: .pem and .p12 require you to specify options.email as well.
* @param {number} [options.port] - The port on which to connect to
* the remote host.
* @param {string} [options.projectId] - The project ID from the Google
* Developer's Console, e.g. 'grape-spaceship-123'. We will also check
* the environment variable GCLOUD_PROJECT for your project ID. If your
* app is running in an environment which supports
* {@link https://developers.google.com/identity/protocols/application-default-credentials Application Default Credentials},
* your project ID will be detected automatically.
* @param {function} [options.promise] - Custom promise module to use instead
* of native Promises.
* @param {string} [options.apiEndpoint] - The domain name of the
* API remote host.
*/
constructor(opts?: ClientOptions);
/**
* The DNS address for this API service.
*/
static get servicePath(): string;
/**
* The DNS address for this API service - same as servicePath(),
* exists for compatibility reasons.
*/
static get apiEndpoint(): string;
/**
* The port for this API service.
*/
static get port(): number;
/**
* The scopes needed to make gRPC calls for every method defined
* in this service.
*/
static get scopes(): string[];
getProjectId(): Promise<string>;
getProjectId(callback: Callback<string, undefined, undefined>): void;
listVoices(request: protosTypes.google.cloud.texttospeech.v1beta1.IListVoicesRequest, options?: gax.CallOptions): Promise<[protosTypes.google.cloud.texttospeech.v1beta1.IListVoicesResponse, (protosTypes.google.cloud.texttospeech.v1beta1.IListVoicesRequest | undefined), {} | undefined]>;
listVoices(request: protosTypes.google.cloud.texttospeech.v1beta1.IListVoicesRequest, options: gax.CallOptions, callback: Callback<protosTypes.google.cloud.texttospeech.v1beta1.IListVoicesResponse, protosTypes.google.cloud.texttospeech.v1beta1.IListVoicesRequest | undefined, {} | undefined>): void;
synthesizeSpeech(request: protosTypes.google.cloud.texttospeech.v1beta1.ISynthesizeSpeechRequest, options?: gax.CallOptions): Promise<[protosTypes.google.cloud.texttospeech.v1beta1.ISynthesizeSpeechResponse, (protosTypes.google.cloud.texttospeech.v1beta1.ISynthesizeSpeechRequest | undefined), {} | undefined]>;
synthesizeSpeech(request: protosTypes.google.cloud.texttospeech.v1beta1.ISynthesizeSpeechRequest, options: gax.CallOptions, callback: Callback<protosTypes.google.cloud.texttospeech.v1beta1.ISynthesizeSpeechResponse, protosTypes.google.cloud.texttospeech.v1beta1.ISynthesizeSpeechRequest | undefined, {} | undefined>): void;
/**
* Terminate the GRPC channel and close the client.
*
* The client will no longer be usable and all future behavior is undefined.
*/
close(): Promise<void>;
}
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\ No newline at end of file
export declare const interfaces: {
"google.cloud.texttospeech.v1beta1.TextToSpeech": {
"retry_codes": {
"non_idempotent": never[];
"idempotent": string[];
};
"retry_params": {
"default": {
"initial_retry_delay_millis": number;
"retry_delay_multiplier": number;
"max_retry_delay_millis": number;
"initial_rpc_timeout_millis": number;
"rpc_timeout_multiplier": number;
"max_rpc_timeout_millis": number;
"total_timeout_millis": number;
};
};
"methods": {
"ListVoices": {
"timeout_millis": number;
"retry_codes_name": string;
"retry_params_name": string;
};
"SynthesizeSpeech": {
"timeout_millis": number;
"retry_codes_name": string;
"retry_params_name": string;
};
};
};
};
{
"interfaces": {
"google.cloud.texttospeech.v1beta1.TextToSpeech": {
"retry_codes": {
"non_idempotent": [],
"idempotent": [
"DEADLINE_EXCEEDED",
"UNAVAILABLE"
]
},
"retry_params": {
"default": {
"initial_retry_delay_millis": 100,
"retry_delay_multiplier": 1.3,
"max_retry_delay_millis": 60000,
"initial_rpc_timeout_millis": 20000,
"rpc_timeout_multiplier": 1,
"max_rpc_timeout_millis": 20000,
"total_timeout_millis": 600000
}
},
"methods": {
"ListVoices": {
"timeout_millis": 600000,
"retry_codes_name": "idempotent",
"retry_params_name": "default"
},
"SynthesizeSpeech": {
"timeout_millis": 600000,
"retry_codes_name": "idempotent",
"retry_params_name": "default"
}
}
}
}
}
{
"_from": "@google-cloud/text-to-speech",
"_id": "@google-cloud/text-to-speech@2.0.0",
"_inBundle": false,
"_integrity": "sha512-bJ17PBL0XL88my64lYcC0uNaARxQ2Y4Jdu6aQVUELb9tgeaZg2PbLQFPoXi0tRm5tyF7cJMD0awKlKnNzI/D5g==",
"_location": "/@google-cloud/text-to-speech",
"_phantomChildren": {},
"_requested": {
"type": "tag",
"registry": true,
"raw": "@google-cloud/text-to-speech",
"name": "@google-cloud/text-to-speech",
"escapedName": "@google-cloud%2ftext-to-speech",
"scope": "@google-cloud",
"rawSpec": "",
"saveSpec": null,
"fetchSpec": "latest"
},
"_requiredBy": [
"#USER",
"/"
],
"_resolved": "https://registry.npmjs.org/@google-cloud/text-to-speech/-/text-to-speech-2.0.0.tgz",
"_shasum": "1a5848298d6a16e5bb135bcab22a613a0f94fad7",
"_spec": "@google-cloud/text-to-speech",
"_where": "C:\\Users\\김수민\\Desktop\\ostt\\LINEBOT",
"author": {
"name": "Google LLC"
},
"bugs": {
"url": "https://github.com/googleapis/nodejs-text-to-speech/issues"
},
"bundleDependencies": false,
"dependencies": {
"google-gax": "^1.9.0"
},
"deprecated": false,
"description": "Cloud Text-to-Speech API client for Node.js",
"devDependencies": {
"@types/mocha": "^5.2.5",
"@types/node": "^12.0.0",
"c8": "^6.0.0",
"codecov": "^3.0.0",
"eslint": "^6.0.0",
"eslint-config-prettier": "^6.0.0",
"eslint-plugin-node": "^10.0.0",
"eslint-plugin-prettier": "^3.0.0",
"gts": "^1.0.0",
"intelli-espower-loader": "^1.0.1",
"jsdoc": "^3.5.5",
"jsdoc-fresh": "^1.0.1",
"jsdoc-region-tag": "^1.0.2",
"linkinator": "^1.5.0",
"mocha": "^6.1.4",
"null-loader": "^3.0.0",
"pack-n-play": "^1.0.0-2",
"power-assert": "^1.4.4",
"prettier": "^1.11.1",
"ts-loader": "^6.2.1",
"typescript": "^3.7.0",
"webpack": "^4.41.2",
"webpack-cli": "^3.3.10"
},
"engines": {
"node": ">=8.10.0"
},
"files": [
"build/protos",
"build/src"
],
"homepage": "https://github.com/googleapis/nodejs-text-to-speech#readme",
"keywords": [
"google apis client",
"google api client",
"google apis",
"google api",
"google",
"google cloud platform",
"google cloud",
"cloud",
"google texttospeech",
"texttospeech",
"Cloud Text-to-Speech API"
],
"license": "Apache-2.0",
"main": "build/src/index.js",
"name": "@google-cloud/text-to-speech",
"repository": {
"type": "git",
"url": "git+https://github.com/googleapis/nodejs-text-to-speech.git"
},
"scripts": {
"clean": "gts clean",
"compile": "tsc -p . && cp -r protos build/",
"compile-protos": "compileProtos src",
"docs": "jsdoc -c .jsdoc.js",
"docs-test": "linkinator docs",
"fix": "gts fix",
"lint": "gts fix && eslint --fix samples/*.js samples/**/*.js",
"predocs-test": "npm run docs",
"prepare": "npm run compile",
"samples-test": "cd samples/ && npm link ../ && npm install && npm test && cd ../",
"system-test": "mocha build/system-test",
"test": "c8 mocha build/test"
},
"version": "2.0.0"
}
This diff is collapsed. Click to expand it.
# Pure JavaScript gRPC Client
**Note: This is an beta-level release. Some APIs may not yet be present and there may be bugs. Please report any that you encounter**
## Installation
Node 10 is recommended. The exact set of compatible Node versions can be found in the `engines` field of the `package.json` file.
```sh
npm install @grpc/grpc-js
```
## Features
- Unary and streaming calls
- Cancellation
- Deadlines
- TLS channel credentials
- Call credentials (for auth)
- Simple reconnection
- Channel API
This library does not directly handle `.proto` files. To use `.proto` files with this library we recommend using the `@grpc/proto-loader` package.
## Some Notes on API Guarantees
The public API of this library follows semantic versioning, with some caveats:
- Some methods are prefixed with an underscore. These methods are internal and should not be considered part of the public API.
- The class `Call` is only exposed due to limitations of TypeScript. It should not be considered part of the public API.
- In general, any API that is exposed by this library but is not exposed by the `grpc` library is likely an error and should not be considered part of the public API.
export interface BackoffOptions {
initialDelay?: number;
multiplier?: number;
jitter?: number;
maxDelay?: number;
}
export declare class BackoffTimeout {
private callback;
private initialDelay;
private multiplier;
private maxDelay;
private jitter;
private nextDelay;
private timerId;
private running;
constructor(callback: () => void, options?: BackoffOptions);
/**
* Call the callback after the current amount of delay time
*/
runOnce(): void;
/**
* Stop the timer. The callback will not be called until `runOnce` is called
* again.
*/
stop(): void;
/**
* Reset the delay time to its initial value.
*/
reset(): void;
isRunning(): boolean;
}
"use strict";
/*
* Copyright 2019 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
Object.defineProperty(exports, "__esModule", { value: true });
const INITIAL_BACKOFF_MS = 1000;
const BACKOFF_MULTIPLIER = 1.6;
const MAX_BACKOFF_MS = 120000;
const BACKOFF_JITTER = 0.2;
/**
* Get a number uniformly at random in the range [min, max)
* @param min
* @param max
*/
function uniformRandom(min, max) {
return Math.random() * (max - min) + min;
}
class BackoffTimeout {
constructor(callback, options) {
this.callback = callback;
this.initialDelay = INITIAL_BACKOFF_MS;
this.multiplier = BACKOFF_MULTIPLIER;
this.maxDelay = MAX_BACKOFF_MS;
this.jitter = BACKOFF_JITTER;
this.running = false;
if (options) {
if (options.initialDelay) {
this.initialDelay = options.initialDelay;
}
if (options.multiplier) {
this.multiplier = options.multiplier;
}
if (options.jitter) {
this.jitter = options.jitter;
}
if (options.maxDelay) {
this.maxDelay = options.maxDelay;
}
}
this.nextDelay = this.initialDelay;
this.timerId = setTimeout(() => { }, 0);
clearTimeout(this.timerId);
}
/**
* Call the callback after the current amount of delay time
*/
runOnce() {
this.running = true;
this.timerId = setTimeout(() => {
this.callback();
this.running = false;
}, this.nextDelay);
const nextBackoff = Math.min(this.nextDelay * this.multiplier, this.maxDelay);
const jitterMagnitude = nextBackoff * this.jitter;
this.nextDelay =
nextBackoff + uniformRandom(-jitterMagnitude, jitterMagnitude);
}
/**
* Stop the timer. The callback will not be called until `runOnce` is called
* again.
*/
stop() {
clearTimeout(this.timerId);
this.running = false;
}
/**
* Reset the delay time to its initial value.
*/
reset() {
this.nextDelay = this.initialDelay;
}
isRunning() {
return this.running;
}
}
exports.BackoffTimeout = BackoffTimeout;
//# sourceMappingURL=backoff-timeout.js.map
\ No newline at end of file
import { Call } from './call-stream';
import { Channel } from './channel';
import { BaseFilter, Filter, FilterFactory } from './filter';
import { Metadata } from './metadata';
export declare class CallCredentialsFilter extends BaseFilter implements Filter {
private readonly channel;
private readonly stream;
private serviceUrl;
constructor(channel: Channel, stream: Call);
sendMetadata(metadata: Promise<Metadata>): Promise<Metadata>;
}
export declare class CallCredentialsFilterFactory implements FilterFactory<CallCredentialsFilter> {
private readonly channel;
constructor(channel: Channel);
createFilter(callStream: Call): CallCredentialsFilter;
}
"use strict";
/*
* Copyright 2019 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
Object.defineProperty(exports, "__esModule", { value: true });
const filter_1 = require("./filter");
class CallCredentialsFilter extends filter_1.BaseFilter {
constructor(channel, stream) {
super();
this.channel = channel;
this.stream = stream;
this.channel = channel;
this.stream = stream;
const splitPath = stream.getMethod().split('/');
let serviceName = '';
/* The standard path format is "/{serviceName}/{methodName}", so if we split
* by '/', the first item should be empty and the second should be the
* service name */
if (splitPath.length >= 2) {
serviceName = splitPath[1];
}
/* Currently, call credentials are only allowed on HTTPS connections, so we
* can assume that the scheme is "https" */
this.serviceUrl = `https://${stream.getHost()}/${serviceName}`;
}
async sendMetadata(metadata) {
const credentials = this.stream.getCredentials();
const credsMetadata = credentials.generateMetadata({
service_url: this.serviceUrl,
});
const resultMetadata = await metadata;
resultMetadata.merge(await credsMetadata);
return resultMetadata;
}
}
exports.CallCredentialsFilter = CallCredentialsFilter;
class CallCredentialsFilterFactory {
constructor(channel) {
this.channel = channel;
this.channel = channel;
}
createFilter(callStream) {
return new CallCredentialsFilter(this.channel, callStream);
}
}
exports.CallCredentialsFilterFactory = CallCredentialsFilterFactory;
//# sourceMappingURL=call-credentials-filter.js.map
\ No newline at end of file
import { Metadata } from './metadata';
export interface CallMetadataOptions {
service_url: string;
}
export declare type CallMetadataGenerator = (options: CallMetadataOptions, cb: (err: Error | null, metadata?: Metadata) => void) => void;
/**
* A class that represents a generic method of adding authentication-related
* metadata on a per-request basis.
*/
export declare abstract class CallCredentials {
/**
* Asynchronously generates a new Metadata object.
* @param options Options used in generating the Metadata object.
*/
abstract generateMetadata(options: CallMetadataOptions): Promise<Metadata>;
/**
* Creates a new CallCredentials object from properties of both this and
* another CallCredentials object. This object's metadata generator will be
* called first.
* @param callCredentials The other CallCredentials object.
*/
abstract compose(callCredentials: CallCredentials): CallCredentials;
/**
* Check whether two call credentials objects are equal. Separate
* SingleCallCredentials with identical metadata generator functions are
* equal.
* @param other The other CallCredentials object to compare with.
*/
abstract _equals(other: CallCredentials): boolean;
/**
* Creates a new CallCredentials object from a given function that generates
* Metadata objects.
* @param metadataGenerator A function that accepts a set of options, and
* generates a Metadata object based on these options, which is passed back
* to the caller via a supplied (err, metadata) callback.
*/
static createFromMetadataGenerator(metadataGenerator: CallMetadataGenerator): CallCredentials;
static createEmpty(): CallCredentials;
}
"use strict";
/*
* Copyright 2019 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
Object.defineProperty(exports, "__esModule", { value: true });
const metadata_1 = require("./metadata");
/**
* A class that represents a generic method of adding authentication-related
* metadata on a per-request basis.
*/
class CallCredentials {
/**
* Creates a new CallCredentials object from a given function that generates
* Metadata objects.
* @param metadataGenerator A function that accepts a set of options, and
* generates a Metadata object based on these options, which is passed back
* to the caller via a supplied (err, metadata) callback.
*/
static createFromMetadataGenerator(metadataGenerator) {
return new SingleCallCredentials(metadataGenerator);
}
static createEmpty() {
return new EmptyCallCredentials();
}
}
exports.CallCredentials = CallCredentials;
class ComposedCallCredentials extends CallCredentials {
constructor(creds) {
super();
this.creds = creds;
}
async generateMetadata(options) {
const base = new metadata_1.Metadata();
const generated = await Promise.all(this.creds.map(cred => cred.generateMetadata(options)));
for (const gen of generated) {
base.merge(gen);
}
return base;
}
compose(other) {
return new ComposedCallCredentials(this.creds.concat([other]));
}
_equals(other) {
if (this === other) {
return true;
}
if (other instanceof ComposedCallCredentials) {
return this.creds.every((value, index) => value._equals(other.creds[index]));
}
else {
return false;
}
}
}
class SingleCallCredentials extends CallCredentials {
constructor(metadataGenerator) {
super();
this.metadataGenerator = metadataGenerator;
}
generateMetadata(options) {
return new Promise((resolve, reject) => {
this.metadataGenerator(options, (err, metadata) => {
if (metadata !== undefined) {
resolve(metadata);
}
else {
reject(err);
}
});
});
}
compose(other) {
return new ComposedCallCredentials([this, other]);
}
_equals(other) {
if (this === other) {
return true;
}
if (other instanceof SingleCallCredentials) {
return this.metadataGenerator === other.metadataGenerator;
}
else {
return false;
}
}
}
class EmptyCallCredentials extends CallCredentials {
generateMetadata(options) {
return Promise.resolve(new metadata_1.Metadata());
}
compose(other) {
return other;
}
_equals(other) {
return other instanceof EmptyCallCredentials;
}
}
//# sourceMappingURL=call-credentials.js.map
\ No newline at end of file
/// <reference types="node" />
import * as http2 from 'http2';
import { Duplex } from 'stream';
import { CallCredentials } from './call-credentials';
import { Status } from './constants';
import { EmitterAugmentation1 } from './events';
import { Filter } from './filter';
import { FilterStackFactory } from './filter-stack';
import { Metadata } from './metadata';
import { ObjectDuplex, WriteCallback } from './object-stream';
import { ChannelImplementation } from './channel';
import { Subchannel } from './subchannel';
export declare type Deadline = Date | number;
export interface CallStreamOptions {
deadline: Deadline;
flags: number;
host: string;
parentCall: Call | null;
}
export declare type PartialCallStreamOptions = Partial<CallStreamOptions>;
export interface StatusObject {
code: Status;
details: string;
metadata: Metadata;
}
export declare const enum WriteFlags {
BufferHint = 1,
NoCompress = 2,
WriteThrough = 4
}
export interface WriteObject {
message: Buffer;
flags?: number;
}
/**
* This interface represents a duplex stream associated with a single gRPC call.
*/
export declare type Call = {
cancelWithStatus(status: Status, details: string): void;
getPeer(): string;
sendMetadata(metadata: Metadata): void;
getDeadline(): Deadline;
getCredentials(): CallCredentials;
setCredentials(credentials: CallCredentials): void;
getStatus(): StatusObject | null;
getMethod(): string;
getHost(): string;
} & EmitterAugmentation1<'metadata', Metadata> & EmitterAugmentation1<'status', StatusObject> & ObjectDuplex<WriteObject, Buffer>;
export declare class Http2CallStream extends Duplex implements Call {
private readonly methodName;
private readonly channel;
private readonly options;
private readonly channelCallCredentials;
credentials: CallCredentials;
filterStack: Filter;
private http2Stream;
private pendingRead;
private pendingWrite;
private pendingWriteCallback;
private pendingFinalCallback;
private decoder;
private isReadFilterPending;
private canPush;
private unpushedReadMessages;
private unfilteredReadMessages;
private mappedStatusCode;
private handlingHeaders;
private handlingTrailers;
private finalStatus;
private subchannel;
private disconnectListener;
constructor(methodName: string, channel: ChannelImplementation, options: CallStreamOptions, filterStackFactory: FilterStackFactory, channelCallCredentials: CallCredentials);
/**
* On first call, emits a 'status' event with the given StatusObject.
* Subsequent calls are no-ops.
* @param status The status of the call.
*/
private endCall;
private handleFilterError;
private handleFilteredRead;
private filterReceivedMessage;
private tryPush;
private handleTrailers;
attachHttp2Stream(stream: http2.ClientHttp2Stream, subchannel: Subchannel): void;
sendMetadata(metadata: Metadata): void;
private destroyHttp2Stream;
cancelWithStatus(status: Status, details: string): void;
getDeadline(): Deadline;
getCredentials(): CallCredentials;
setCredentials(credentials: CallCredentials): void;
getStatus(): StatusObject | null;
getPeer(): string;
getMethod(): string;
getHost(): string;
_read(size: number): void;
_write(chunk: WriteObject, encoding: string, cb: WriteCallback): void;
_final(cb: Function): void;
}
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/// <reference types="node" />
import { EventEmitter } from 'events';
import { Duplex, Readable, Writable } from 'stream';
import { Call, StatusObject } from './call-stream';
import { EmitterAugmentation1 } from './events';
import { Metadata } from './metadata';
import { ObjectReadable, ObjectWritable } from './object-stream';
/**
* A type extending the built-in Error object with additional fields.
*/
export declare type ServiceError = StatusObject & Error;
/**
* A base type for all user-facing values returned by client-side method calls.
*/
export declare type SurfaceCall = {
cancel(): void;
getPeer(): string;
} & EmitterAugmentation1<'metadata', Metadata> & EmitterAugmentation1<'status', StatusObject> & EventEmitter;
/**
* A type representing the return value of a unary method call.
*/
export declare type ClientUnaryCall = SurfaceCall;
/**
* A type representing the return value of a server stream method call.
*/
export declare type ClientReadableStream<ResponseType> = {
deserialize: (chunk: Buffer) => ResponseType;
} & SurfaceCall & ObjectReadable<ResponseType>;
/**
* A type representing the return value of a client stream method call.
*/
export declare type ClientWritableStream<RequestType> = {
serialize: (value: RequestType) => Buffer;
} & SurfaceCall & ObjectWritable<RequestType>;
/**
* A type representing the return value of a bidirectional stream method call.
*/
export declare type ClientDuplexStream<RequestType, ResponseType> = ClientWritableStream<RequestType> & ClientReadableStream<ResponseType>;
/**
* Construct a ServiceError from a StatusObject. This function exists primarily
* as an attempt to make the error stack trace clearly communicate that the
* error is not necessarily a problem in gRPC itself.
* @param status
*/
export declare function callErrorFromStatus(status: StatusObject): ServiceError;
export declare class ClientUnaryCallImpl extends EventEmitter implements ClientUnaryCall {
private readonly call;
constructor(call: Call);
cancel(): void;
getPeer(): string;
}
export declare class ClientReadableStreamImpl<ResponseType> extends Readable implements ClientReadableStream<ResponseType> {
private readonly call;
readonly deserialize: (chunk: Buffer) => ResponseType;
constructor(call: Call, deserialize: (chunk: Buffer) => ResponseType);
cancel(): void;
getPeer(): string;
_read(_size: number): void;
}
export declare class ClientWritableStreamImpl<RequestType> extends Writable implements ClientWritableStream<RequestType> {
private readonly call;
readonly serialize: (value: RequestType) => Buffer;
constructor(call: Call, serialize: (value: RequestType) => Buffer);
cancel(): void;
getPeer(): string;
_write(chunk: RequestType, encoding: string, cb: Function): void;
_final(cb: Function): void;
}
export declare class ClientDuplexStreamImpl<RequestType, ResponseType> extends Duplex implements ClientDuplexStream<RequestType, ResponseType> {
private readonly call;
readonly serialize: (value: RequestType) => Buffer;
readonly deserialize: (chunk: Buffer) => ResponseType;
constructor(call: Call, serialize: (value: RequestType) => Buffer, deserialize: (chunk: Buffer) => ResponseType);
cancel(): void;
getPeer(): string;
_read(_size: number): void;
_write(chunk: RequestType, encoding: string, cb: Function): void;
_final(cb: Function): void;
}
"use strict";
/*
* Copyright 2019 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
Object.defineProperty(exports, "__esModule", { value: true });
const events_1 = require("events");
const stream_1 = require("stream");
const constants_1 = require("./constants");
/**
* Construct a ServiceError from a StatusObject. This function exists primarily
* as an attempt to make the error stack trace clearly communicate that the
* error is not necessarily a problem in gRPC itself.
* @param status
*/
function callErrorFromStatus(status) {
const message = `${status.code} ${constants_1.Status[status.code]}: ${status.details}`;
return Object.assign(new Error(message), status);
}
exports.callErrorFromStatus = callErrorFromStatus;
class ClientUnaryCallImpl extends events_1.EventEmitter {
constructor(call) {
super();
this.call = call;
call.on('metadata', (metadata) => {
this.emit('metadata', metadata);
});
call.on('status', (status) => {
this.emit('status', status);
});
}
cancel() {
this.call.cancelWithStatus(constants_1.Status.CANCELLED, 'Cancelled on client');
}
getPeer() {
return this.call.getPeer();
}
}
exports.ClientUnaryCallImpl = ClientUnaryCallImpl;
function setUpReadableStream(stream, call, deserialize) {
let statusEmitted = false;
call.on('data', (data) => {
let deserialized;
try {
deserialized = deserialize(data);
}
catch (e) {
call.cancelWithStatus(constants_1.Status.INTERNAL, 'Failed to parse server response');
return;
}
if (!stream.push(deserialized)) {
call.pause();
}
});
call.on('end', () => {
if (statusEmitted) {
stream.push(null);
}
else {
call.once('status', () => {
stream.push(null);
});
}
});
call.on('status', (status) => {
if (status.code !== constants_1.Status.OK) {
stream.emit('error', callErrorFromStatus(status));
}
stream.emit('status', status);
statusEmitted = true;
});
call.pause();
}
class ClientReadableStreamImpl extends stream_1.Readable {
constructor(call, deserialize) {
super({ objectMode: true });
this.call = call;
this.deserialize = deserialize;
call.on('metadata', (metadata) => {
this.emit('metadata', metadata);
});
setUpReadableStream(this, call, deserialize);
}
cancel() {
this.call.cancelWithStatus(constants_1.Status.CANCELLED, 'Cancelled on client');
}
getPeer() {
return this.call.getPeer();
}
_read(_size) {
this.call.resume();
}
}
exports.ClientReadableStreamImpl = ClientReadableStreamImpl;
function tryWrite(call, serialize, chunk, encoding, cb) {
let message;
const flags = Number(encoding);
try {
message = serialize(chunk);
}
catch (e) {
call.cancelWithStatus(constants_1.Status.INTERNAL, 'Serialization failure');
cb(e);
return;
}
const writeObj = { message };
if (!Number.isNaN(flags)) {
writeObj.flags = flags;
}
call.write(writeObj, cb);
}
class ClientWritableStreamImpl extends stream_1.Writable {
constructor(call, serialize) {
super({ objectMode: true });
this.call = call;
this.serialize = serialize;
call.on('metadata', (metadata) => {
this.emit('metadata', metadata);
});
call.on('status', (status) => {
this.emit('status', status);
});
}
cancel() {
this.call.cancelWithStatus(constants_1.Status.CANCELLED, 'Cancelled on client');
}
getPeer() {
return this.call.getPeer();
}
_write(chunk, encoding, cb) {
tryWrite(this.call, this.serialize, chunk, encoding, cb);
}
_final(cb) {
this.call.end();
cb();
}
}
exports.ClientWritableStreamImpl = ClientWritableStreamImpl;
class ClientDuplexStreamImpl extends stream_1.Duplex {
constructor(call, serialize, deserialize) {
super({ objectMode: true });
this.call = call;
this.serialize = serialize;
this.deserialize = deserialize;
call.on('metadata', (metadata) => {
this.emit('metadata', metadata);
});
setUpReadableStream(this, call, deserialize);
}
cancel() {
this.call.cancelWithStatus(constants_1.Status.CANCELLED, 'Cancelled on client');
}
getPeer() {
return this.call.getPeer();
}
_read(_size) {
this.call.resume();
}
_write(chunk, encoding, cb) {
tryWrite(this.call, this.serialize, chunk, encoding, cb);
}
_final(cb) {
this.call.end();
cb();
}
}
exports.ClientDuplexStreamImpl = ClientDuplexStreamImpl;
//# sourceMappingURL=call.js.map
\ No newline at end of file
/// <reference types="node" />
import { ConnectionOptions } from 'tls';
import { CallCredentials } from './call-credentials';
/**
* A certificate as received by the checkServerIdentity callback.
*/
export interface Certificate {
/**
* The raw certificate in DER form.
*/
raw: Buffer;
}
/**
* A callback that will receive the expected hostname and presented peer
* certificate as parameters. The callback should return an error to
* indicate that the presented certificate is considered invalid and
* otherwise returned undefined.
*/
export declare type CheckServerIdentityCallback = (hostname: string, cert: Certificate) => Error | undefined;
/**
* Additional peer verification options that can be set when creating
* SSL credentials.
*/
export interface VerifyOptions {
/**
* If set, this callback will be invoked after the usual hostname verification
* has been performed on the peer certificate.
*/
checkServerIdentity?: CheckServerIdentityCallback;
}
/**
* A class that contains credentials for communicating over a channel, as well
* as a set of per-call credentials, which are applied to every method call made
* over a channel initialized with an instance of this class.
*/
export declare abstract class ChannelCredentials {
protected callCredentials: CallCredentials;
protected constructor(callCredentials?: CallCredentials);
/**
* Returns a copy of this object with the included set of per-call credentials
* expanded to include callCredentials.
* @param callCredentials A CallCredentials object to associate with this
* instance.
*/
abstract compose(callCredentials: CallCredentials): ChannelCredentials;
/**
* Gets the set of per-call credentials associated with this instance.
*/
_getCallCredentials(): CallCredentials;
/**
* Gets a SecureContext object generated from input parameters if this
* instance was created with createSsl, or null if this instance was created
* with createInsecure.
*/
abstract _getConnectionOptions(): ConnectionOptions | null;
/**
* Indicates whether this credentials object creates a secure channel.
*/
abstract _isSecure(): boolean;
/**
* Check whether two channel credentials objects are equal. Two secure
* credentials are equal if they were constructed with the same parameters.
* @param other The other ChannelCredentials Object
*/
abstract _equals(other: ChannelCredentials): boolean;
/**
* Return a new ChannelCredentials instance with a given set of credentials.
* The resulting instance can be used to construct a Channel that communicates
* over TLS.
* @param rootCerts The root certificate data.
* @param privateKey The client certificate private key, if available.
* @param certChain The client certificate key chain, if available.
*/
static createSsl(rootCerts?: Buffer | null, privateKey?: Buffer | null, certChain?: Buffer | null, verifyOptions?: VerifyOptions): ChannelCredentials;
/**
* Return a new ChannelCredentials instance with no credentials.
*/
static createInsecure(): ChannelCredentials;
}
"use strict";
/*
* Copyright 2019 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
Object.defineProperty(exports, "__esModule", { value: true });
const tls_1 = require("tls");
const call_credentials_1 = require("./call-credentials");
// tslint:disable-next-line:no-any
function verifyIsBufferOrNull(obj, friendlyName) {
if (obj && !(obj instanceof Buffer)) {
throw new TypeError(`${friendlyName}, if provided, must be a Buffer.`);
}
}
function bufferOrNullEqual(buf1, buf2) {
if (buf1 === null && buf2 === null) {
return true;
}
else {
return buf1 !== null && buf2 !== null && buf1.equals(buf2);
}
}
/**
* A class that contains credentials for communicating over a channel, as well
* as a set of per-call credentials, which are applied to every method call made
* over a channel initialized with an instance of this class.
*/
class ChannelCredentials {
constructor(callCredentials) {
this.callCredentials = callCredentials || call_credentials_1.CallCredentials.createEmpty();
}
/**
* Gets the set of per-call credentials associated with this instance.
*/
_getCallCredentials() {
return this.callCredentials;
}
/**
* Return a new ChannelCredentials instance with a given set of credentials.
* The resulting instance can be used to construct a Channel that communicates
* over TLS.
* @param rootCerts The root certificate data.
* @param privateKey The client certificate private key, if available.
* @param certChain The client certificate key chain, if available.
*/
static createSsl(rootCerts, privateKey, certChain, verifyOptions) {
verifyIsBufferOrNull(rootCerts, 'Root certificate');
verifyIsBufferOrNull(privateKey, 'Private key');
verifyIsBufferOrNull(certChain, 'Certificate chain');
if (privateKey && !certChain) {
throw new Error('Private key must be given with accompanying certificate chain');
}
if (!privateKey && certChain) {
throw new Error('Certificate chain must be given with accompanying private key');
}
return new SecureChannelCredentialsImpl(rootCerts || null, privateKey || null, certChain || null, verifyOptions || {});
}
/**
* Return a new ChannelCredentials instance with no credentials.
*/
static createInsecure() {
return new InsecureChannelCredentialsImpl();
}
}
exports.ChannelCredentials = ChannelCredentials;
class InsecureChannelCredentialsImpl extends ChannelCredentials {
constructor(callCredentials) {
super(callCredentials);
}
compose(callCredentials) {
throw new Error('Cannot compose insecure credentials');
}
_getConnectionOptions() {
return null;
}
_isSecure() {
return false;
}
_equals(other) {
return other instanceof InsecureChannelCredentialsImpl;
}
}
class SecureChannelCredentialsImpl extends ChannelCredentials {
constructor(rootCerts, privateKey, certChain, verifyOptions) {
super();
this.rootCerts = rootCerts;
this.privateKey = privateKey;
this.certChain = certChain;
this.verifyOptions = verifyOptions;
const secureContext = tls_1.createSecureContext({
ca: rootCerts || undefined,
key: privateKey || undefined,
cert: certChain || undefined,
});
this.connectionOptions = { secureContext };
if (verifyOptions && verifyOptions.checkServerIdentity) {
this.connectionOptions.checkServerIdentity = (host, cert) => {
return verifyOptions.checkServerIdentity(host, { raw: cert.raw });
};
}
}
compose(callCredentials) {
const combinedCallCredentials = this.callCredentials.compose(callCredentials);
return new ComposedChannelCredentialsImpl(this, combinedCallCredentials);
}
_getConnectionOptions() {
return this.connectionOptions;
}
_isSecure() {
return true;
}
_equals(other) {
if (this === other) {
return true;
}
if (other instanceof SecureChannelCredentialsImpl) {
if (!bufferOrNullEqual(this.rootCerts, other.rootCerts)) {
return false;
}
if (!bufferOrNullEqual(this.privateKey, other.privateKey)) {
return false;
}
if (!bufferOrNullEqual(this.certChain, other.certChain)) {
return false;
}
return (this.verifyOptions.checkServerIdentity ===
other.verifyOptions.checkServerIdentity);
}
else {
return false;
}
}
}
class ComposedChannelCredentialsImpl extends ChannelCredentials {
constructor(channelCredentials, callCreds) {
super(callCreds);
this.channelCredentials = channelCredentials;
}
compose(callCredentials) {
const combinedCallCredentials = this.callCredentials.compose(callCredentials);
return new ComposedChannelCredentialsImpl(this.channelCredentials, combinedCallCredentials);
}
_getConnectionOptions() {
return this.channelCredentials._getConnectionOptions();
}
_isSecure() {
return true;
}
_equals(other) {
if (this === other) {
return true;
}
if (other instanceof ComposedChannelCredentialsImpl) {
return (this.channelCredentials._equals(other.channelCredentials) &&
this.callCredentials._equals(other.callCredentials));
}
else {
return false;
}
}
}
//# sourceMappingURL=channel-credentials.js.map
\ No newline at end of file
/**
* An interface that contains options used when initializing a Channel instance.
*/
export interface ChannelOptions {
'grpc.ssl_target_name_override'?: string;
'grpc.primary_user_agent'?: string;
'grpc.secondary_user_agent'?: string;
'grpc.default_authority'?: string;
'grpc.keepalive_time_ms'?: number;
'grpc.keepalive_timeout_ms'?: number;
[key: string]: string | number | undefined;
}
/**
* This is for checking provided options at runtime. This is an object for
* easier membership checking.
*/
export declare const recognizedOptions: {
'grpc.ssl_target_name_override': boolean;
'grpc.primary_user_agent': boolean;
'grpc.secondary_user_agent': boolean;
'grpc.default_authority': boolean;
'grpc.keepalive_time_ms': boolean;
'grpc.keepalive_timeout_ms': boolean;
};
export declare function channelOptionsEqual(options1: ChannelOptions, options2: ChannelOptions): boolean;
"use strict";
/*
* Copyright 2019 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
Object.defineProperty(exports, "__esModule", { value: true });
/**
* This is for checking provided options at runtime. This is an object for
* easier membership checking.
*/
exports.recognizedOptions = {
'grpc.ssl_target_name_override': true,
'grpc.primary_user_agent': true,
'grpc.secondary_user_agent': true,
'grpc.default_authority': true,
'grpc.keepalive_time_ms': true,
'grpc.keepalive_timeout_ms': true,
};
function channelOptionsEqual(options1, options2) {
const keys1 = Object.keys(options1).sort();
const keys2 = Object.keys(options2).sort();
if (keys1.length !== keys2.length) {
return false;
}
for (let i = 0; i < keys1.length; i += 1) {
if (keys1[i] !== keys2[i]) {
return false;
}
if (options1[keys1[i]] !== options2[keys2[i]]) {
return false;
}
}
return true;
}
exports.channelOptionsEqual = channelOptionsEqual;
//# sourceMappingURL=channel-options.js.map
\ No newline at end of file
import { Deadline, Call, Http2CallStream } from './call-stream';
import { ChannelCredentials } from './channel-credentials';
import { ChannelOptions } from './channel-options';
import { Metadata } from './metadata';
export declare enum ConnectivityState {
CONNECTING = 0,
READY = 1,
TRANSIENT_FAILURE = 2,
IDLE = 3,
SHUTDOWN = 4
}
/**
* An interface that represents a communication channel to a server specified
* by a given address.
*/
export interface Channel {
/**
* Close the channel. This has the same functionality as the existing
* grpc.Client.prototype.close
*/
close(): void;
/**
* Return the target that this channel connects to
*/
getTarget(): string;
/**
* Get the channel's current connectivity state. This method is here mainly
* because it is in the existing internal Channel class, and there isn't
* another good place to put it.
* @param tryToConnect If true, the channel will start connecting if it is
* idle. Otherwise, idle channels will only start connecting when a
* call starts.
*/
getConnectivityState(tryToConnect: boolean): ConnectivityState;
/**
* Watch for connectivity state changes. This is also here mainly because
* it is in the existing external Channel class.
* @param currentState The state to watch for transitions from. This should
* always be populated by calling getConnectivityState immediately
* before.
* @param deadline A deadline for waiting for a state change
* @param callback Called with no error when a state change, or with an
* error if the deadline passes without a state change.
*/
watchConnectivityState(currentState: ConnectivityState, deadline: Date | number, callback: (error?: Error) => void): void;
/**
* Create a call object. Call is an opaque type that is used by the Client
* class. This function is called by the gRPC library when starting a
* request. Implementers should return an instance of Call that is returned
* from calling createCall on an instance of the provided Channel class.
* @param method The full method string to request.
* @param deadline The call deadline
* @param host A host string override for making the request
* @param parentCall A server call to propagate some information from
* @param propagateFlags A bitwise combination of elements of grpc.propagate
* that indicates what information to propagate from parentCall.
*/
createCall(method: string, deadline: Deadline | null | undefined, host: string | null | undefined, parentCall: Call | null | undefined, propagateFlags: number | null | undefined): Call;
}
export declare class ChannelImplementation implements Channel {
private target;
private readonly credentials;
private readonly options;
private resolvingLoadBalancer;
private subchannelPool;
private connectivityState;
private currentPicker;
private pickQueue;
private connectivityStateWatchers;
private defaultAuthority;
private filterStackFactory;
constructor(target: string, credentials: ChannelCredentials, options: ChannelOptions);
/**
* Check the picker output for the given call and corresponding metadata,
* and take any relevant actions. Should not be called while iterating
* over pickQueue.
* @param callStream
* @param callMetadata
*/
private tryPick;
private removeConnectivityStateWatcher;
private updateState;
_startCallStream(stream: Http2CallStream, metadata: Metadata): void;
close(): void;
getTarget(): string;
getConnectivityState(): ConnectivityState;
watchConnectivityState(currentState: ConnectivityState, deadline: Date | number, callback: (error?: Error) => void): void;
createCall(method: string, deadline: Deadline | null | undefined, host: string | null | undefined, parentCall: Call | null | undefined, propagateFlags: number | null | undefined): Call;
}
"use strict";
/*
* Copyright 2019 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
Object.defineProperty(exports, "__esModule", { value: true });
const call_stream_1 = require("./call-stream");
const resolving_load_balancer_1 = require("./resolving-load-balancer");
const subchannel_pool_1 = require("./subchannel-pool");
const picker_1 = require("./picker");
const constants_1 = require("./constants");
const filter_stack_1 = require("./filter-stack");
const call_credentials_filter_1 = require("./call-credentials-filter");
const deadline_filter_1 = require("./deadline-filter");
const metadata_status_filter_1 = require("./metadata-status-filter");
const compression_filter_1 = require("./compression-filter");
const resolver_1 = require("./resolver");
const logging_1 = require("./logging");
var ConnectivityState;
(function (ConnectivityState) {
ConnectivityState[ConnectivityState["CONNECTING"] = 0] = "CONNECTING";
ConnectivityState[ConnectivityState["READY"] = 1] = "READY";
ConnectivityState[ConnectivityState["TRANSIENT_FAILURE"] = 2] = "TRANSIENT_FAILURE";
ConnectivityState[ConnectivityState["IDLE"] = 3] = "IDLE";
ConnectivityState[ConnectivityState["SHUTDOWN"] = 4] = "SHUTDOWN";
})(ConnectivityState = exports.ConnectivityState || (exports.ConnectivityState = {}));
class ChannelImplementation {
constructor(target, credentials, options) {
this.target = target;
this.credentials = credentials;
this.options = options;
this.connectivityState = ConnectivityState.IDLE;
this.currentPicker = new picker_1.UnavailablePicker();
this.pickQueue = [];
this.connectivityStateWatchers = [];
// TODO(murgatroid99): check channel arg for getting a private pool
this.subchannelPool = subchannel_pool_1.getSubchannelPool(true);
const channelControlHelper = {
createSubchannel: (subchannelAddress, subchannelArgs) => {
return this.subchannelPool.getOrCreateSubchannel(this.target, subchannelAddress, Object.assign({}, this.options, subchannelArgs), this.credentials);
},
updateState: (connectivityState, picker) => {
this.currentPicker = picker;
const queueCopy = this.pickQueue.slice();
this.pickQueue = [];
for (const { callStream, callMetadata } of queueCopy) {
this.tryPick(callStream, callMetadata);
}
this.updateState(connectivityState);
},
requestReresolution: () => {
// This should never be called.
throw new Error('Resolving load balancer should never call requestReresolution');
},
};
// TODO(murgatroid99): check channel arg for default service config
const defaultServiceConfig = {
loadBalancingConfig: [],
methodConfig: [],
};
this.resolvingLoadBalancer = new resolving_load_balancer_1.ResolvingLoadBalancer(target, channelControlHelper, defaultServiceConfig);
this.filterStackFactory = new filter_stack_1.FilterStackFactory([
new call_credentials_filter_1.CallCredentialsFilterFactory(this),
new deadline_filter_1.DeadlineFilterFactory(this),
new metadata_status_filter_1.MetadataStatusFilterFactory(this),
new compression_filter_1.CompressionFilterFactory(this),
]);
// TODO(murgatroid99): Add more centralized handling of channel options
if (this.options['grpc.default_authority']) {
this.defaultAuthority = this.options['grpc.default_authority'];
}
else {
this.defaultAuthority = resolver_1.getDefaultAuthority(target);
}
}
/**
* Check the picker output for the given call and corresponding metadata,
* and take any relevant actions. Should not be called while iterating
* over pickQueue.
* @param callStream
* @param callMetadata
*/
tryPick(callStream, callMetadata) {
const pickResult = this.currentPicker.pick({ metadata: callMetadata });
switch (pickResult.pickResultType) {
case picker_1.PickResultType.COMPLETE:
if (pickResult.subchannel === null) {
callStream.cancelWithStatus(constants_1.Status.UNAVAILABLE, 'Request dropped by load balancing policy');
// End the call with an error
}
else {
/* If the subchannel disconnects between calling pick and getting
* the filter stack metadata, the call will end with an error. */
callStream.filterStack
.sendMetadata(Promise.resolve(callMetadata))
.then(finalMetadata => {
if (pickResult.subchannel.getConnectivityState() ===
ConnectivityState.READY) {
pickResult.subchannel.startCallStream(finalMetadata, callStream);
}
else {
callStream.cancelWithStatus(constants_1.Status.UNAVAILABLE, 'Connection dropped while starting call');
}
}, (error) => {
// We assume the error code isn't 0 (Status.OK)
callStream.cancelWithStatus(error.code || constants_1.Status.UNKNOWN, `Getting metadata from plugin failed with error: ${error.message}`);
});
}
break;
case picker_1.PickResultType.QUEUE:
this.pickQueue.push({ callStream, callMetadata });
break;
case picker_1.PickResultType.TRANSIENT_FAILURE:
if (callMetadata.getOptions().waitForReady) {
this.pickQueue.push({ callStream, callMetadata });
}
else {
callStream.cancelWithStatus(pickResult.status.code, pickResult.status.details);
}
break;
default:
throw new Error(`Invalid state: unknown pickResultType ${pickResult.pickResultType}`);
}
}
removeConnectivityStateWatcher(watcherObject) {
const watcherIndex = this.connectivityStateWatchers.findIndex(value => value === watcherObject);
if (watcherIndex >= 0) {
this.connectivityStateWatchers.splice(watcherIndex, 1);
}
}
updateState(newState) {
logging_1.trace(constants_1.LogVerbosity.DEBUG, 'connectivity_state', this.target + ' ' + ConnectivityState[this.connectivityState] + ' -> ' + ConnectivityState[newState]);
this.connectivityState = newState;
const watchersCopy = this.connectivityStateWatchers.slice();
for (const watcherObject of watchersCopy) {
if (newState !== watcherObject.currentState) {
watcherObject.callback();
clearTimeout(watcherObject.timer);
this.removeConnectivityStateWatcher(watcherObject);
}
}
}
_startCallStream(stream, metadata) {
this.tryPick(stream, metadata.clone());
}
close() {
this.resolvingLoadBalancer.destroy();
this.updateState(ConnectivityState.SHUTDOWN);
}
getTarget() {
return this.target;
}
getConnectivityState() {
return this.connectivityState;
}
watchConnectivityState(currentState, deadline, callback) {
const deadlineDate = deadline instanceof Date ? deadline : new Date(deadline);
const now = new Date();
if (deadlineDate <= now) {
process.nextTick(callback, new Error('Deadline passed without connectivity state change'));
return;
}
const watcherObject = {
currentState,
callback,
timer: setTimeout(() => {
this.removeConnectivityStateWatcher(watcherObject);
callback(new Error('Deadline passed without connectivity state change'));
}, deadlineDate.getTime() - now.getTime()),
};
this.connectivityStateWatchers.push(watcherObject);
}
createCall(method, deadline, host, parentCall, propagateFlags) {
if (this.connectivityState === ConnectivityState.SHUTDOWN) {
throw new Error('Channel has been shut down');
}
const finalOptions = {
deadline: deadline === null || deadline === undefined ? Infinity : deadline,
flags: propagateFlags || 0,
host: host || this.defaultAuthority,
parentCall: parentCall || null,
};
const stream = new call_stream_1.Http2CallStream(method, this, finalOptions, this.filterStackFactory, this.credentials._getCallCredentials());
return stream;
}
}
exports.ChannelImplementation = ChannelImplementation;
//# sourceMappingURL=channel.js.map
\ No newline at end of file
/// <reference types="node" />
import { ClientDuplexStream, ClientReadableStream, ClientUnaryCall, ClientWritableStream, ServiceError } from './call';
import { CallCredentials } from './call-credentials';
import { Deadline } from './call-stream';
import { Channel } from './channel';
import { ChannelCredentials } from './channel-credentials';
import { ChannelOptions } from './channel-options';
import { Metadata } from './metadata';
declare const CHANNEL_SYMBOL: unique symbol;
export interface UnaryCallback<ResponseType> {
(err: ServiceError | null, value?: ResponseType): void;
}
export interface CallOptions {
deadline?: Deadline;
host?: string;
propagate_flags?: number;
credentials?: CallCredentials;
}
export declare type ClientOptions = Partial<ChannelOptions> & {
channelOverride?: Channel;
channelFactoryOverride?: (address: string, credentials: ChannelCredentials, options: ClientOptions) => Channel;
};
/**
* A generic gRPC client. Primarily useful as a base class for all generated
* clients.
*/
export declare class Client {
private readonly [CHANNEL_SYMBOL];
constructor(address: string, credentials: ChannelCredentials, options?: ClientOptions);
close(): void;
getChannel(): Channel;
waitForReady(deadline: Deadline, callback: (error?: Error) => void): void;
private handleUnaryResponse;
private checkOptionalUnaryResponseArguments;
makeUnaryRequest<RequestType, ResponseType>(method: string, serialize: (value: RequestType) => Buffer, deserialize: (value: Buffer) => ResponseType, argument: RequestType, metadata: Metadata, options: CallOptions, callback: UnaryCallback<ResponseType>): ClientUnaryCall;
makeUnaryRequest<RequestType, ResponseType>(method: string, serialize: (value: RequestType) => Buffer, deserialize: (value: Buffer) => ResponseType, argument: RequestType, metadata: Metadata, callback: UnaryCallback<ResponseType>): ClientUnaryCall;
makeUnaryRequest<RequestType, ResponseType>(method: string, serialize: (value: RequestType) => Buffer, deserialize: (value: Buffer) => ResponseType, argument: RequestType, options: CallOptions, callback: UnaryCallback<ResponseType>): ClientUnaryCall;
makeUnaryRequest<RequestType, ResponseType>(method: string, serialize: (value: RequestType) => Buffer, deserialize: (value: Buffer) => ResponseType, argument: RequestType, callback: UnaryCallback<ResponseType>): ClientUnaryCall;
makeClientStreamRequest<RequestType, ResponseType>(method: string, serialize: (value: RequestType) => Buffer, deserialize: (value: Buffer) => ResponseType, metadata: Metadata, options: CallOptions, callback: UnaryCallback<ResponseType>): ClientWritableStream<RequestType>;
makeClientStreamRequest<RequestType, ResponseType>(method: string, serialize: (value: RequestType) => Buffer, deserialize: (value: Buffer) => ResponseType, metadata: Metadata, callback: UnaryCallback<ResponseType>): ClientWritableStream<RequestType>;
makeClientStreamRequest<RequestType, ResponseType>(method: string, serialize: (value: RequestType) => Buffer, deserialize: (value: Buffer) => ResponseType, options: CallOptions, callback: UnaryCallback<ResponseType>): ClientWritableStream<RequestType>;
makeClientStreamRequest<RequestType, ResponseType>(method: string, serialize: (value: RequestType) => Buffer, deserialize: (value: Buffer) => ResponseType, callback: UnaryCallback<ResponseType>): ClientWritableStream<RequestType>;
private checkMetadataAndOptions;
makeServerStreamRequest<RequestType, ResponseType>(method: string, serialize: (value: RequestType) => Buffer, deserialize: (value: Buffer) => ResponseType, argument: RequestType, metadata: Metadata, options?: CallOptions): ClientReadableStream<ResponseType>;
makeServerStreamRequest<RequestType, ResponseType>(method: string, serialize: (value: RequestType) => Buffer, deserialize: (value: Buffer) => ResponseType, argument: RequestType, options?: CallOptions): ClientReadableStream<ResponseType>;
makeBidiStreamRequest<RequestType, ResponseType>(method: string, serialize: (value: RequestType) => Buffer, deserialize: (value: Buffer) => ResponseType, metadata: Metadata, options?: CallOptions): ClientDuplexStream<RequestType, ResponseType>;
makeBidiStreamRequest<RequestType, ResponseType>(method: string, serialize: (value: RequestType) => Buffer, deserialize: (value: Buffer) => ResponseType, options?: CallOptions): ClientDuplexStream<RequestType, ResponseType>;
}
export {};
"use strict";
/*
* Copyright 2019 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
Object.defineProperty(exports, "__esModule", { value: true });
const call_1 = require("./call");
const channel_1 = require("./channel");
const constants_1 = require("./constants");
const metadata_1 = require("./metadata");
const CHANNEL_SYMBOL = Symbol();
/**
* A generic gRPC client. Primarily useful as a base class for all generated
* clients.
*/
class Client {
constructor(address, credentials, options = {}) {
if (options.channelOverride) {
this[CHANNEL_SYMBOL] = options.channelOverride;
}
else if (options.channelFactoryOverride) {
this[CHANNEL_SYMBOL] = options.channelFactoryOverride(address, credentials, options);
}
else {
this[CHANNEL_SYMBOL] = new channel_1.ChannelImplementation(address, credentials, options);
}
}
close() {
this[CHANNEL_SYMBOL].close();
}
getChannel() {
return this[CHANNEL_SYMBOL];
}
waitForReady(deadline, callback) {
const checkState = (err) => {
if (err) {
callback(new Error('Failed to connect before the deadline'));
return;
}
let newState;
try {
newState = this[CHANNEL_SYMBOL].getConnectivityState(true);
}
catch (e) {
callback(new Error('The channel has been closed'));
return;
}
if (newState === channel_1.ConnectivityState.READY) {
callback();
}
else {
try {
this[CHANNEL_SYMBOL].watchConnectivityState(newState, deadline, checkState);
}
catch (e) {
callback(new Error('The channel has been closed'));
}
}
};
setImmediate(checkState);
}
handleUnaryResponse(call, deserialize, callback) {
let responseMessage = null;
call.on('data', (data) => {
if (responseMessage != null) {
call.cancelWithStatus(constants_1.Status.INTERNAL, 'Too many responses received');
}
try {
responseMessage = deserialize(data);
}
catch (e) {
call.cancelWithStatus(constants_1.Status.INTERNAL, 'Failed to parse server response');
}
});
call.on('status', (status) => {
/* We assume that call emits status after it emits end, and that it
* accounts for any cancelWithStatus calls up until it emits status.
* Therefore, considering the above event handlers, status.code should be
* OK if and only if we have a non-null responseMessage */
if (status.code === constants_1.Status.OK) {
callback(null, responseMessage);
}
else {
callback(call_1.callErrorFromStatus(status));
}
});
}
checkOptionalUnaryResponseArguments(arg1, arg2, arg3) {
if (arg1 instanceof Function) {
return { metadata: new metadata_1.Metadata(), options: {}, callback: arg1 };
}
else if (arg2 instanceof Function) {
if (arg1 instanceof metadata_1.Metadata) {
return { metadata: arg1, options: {}, callback: arg2 };
}
else {
return { metadata: new metadata_1.Metadata(), options: arg1, callback: arg2 };
}
}
else {
if (!(arg1 instanceof metadata_1.Metadata &&
arg2 instanceof Object &&
arg3 instanceof Function)) {
throw new Error('Incorrect arguments passed');
}
return { metadata: arg1, options: arg2, callback: arg3 };
}
}
makeUnaryRequest(method, serialize, deserialize, argument, metadata, options, callback) {
({ metadata, options, callback } = this.checkOptionalUnaryResponseArguments(metadata, options, callback));
const call = this[CHANNEL_SYMBOL].createCall(method, options.deadline, options.host, null, options.propagate_flags);
if (options.credentials) {
call.setCredentials(options.credentials);
}
const message = serialize(argument);
const writeObj = { message };
call.sendMetadata(metadata);
call.write(writeObj);
call.end();
this.handleUnaryResponse(call, deserialize, callback);
return new call_1.ClientUnaryCallImpl(call);
}
makeClientStreamRequest(method, serialize, deserialize, metadata, options, callback) {
({ metadata, options, callback } = this.checkOptionalUnaryResponseArguments(metadata, options, callback));
const call = this[CHANNEL_SYMBOL].createCall(method, options.deadline, options.host, null, options.propagate_flags);
if (options.credentials) {
call.setCredentials(options.credentials);
}
call.sendMetadata(metadata);
this.handleUnaryResponse(call, deserialize, callback);
return new call_1.ClientWritableStreamImpl(call, serialize);
}
checkMetadataAndOptions(arg1, arg2) {
let metadata;
let options;
if (arg1 instanceof metadata_1.Metadata) {
metadata = arg1;
if (arg2) {
options = arg2;
}
else {
options = {};
}
}
else {
if (arg1) {
options = arg1;
}
else {
options = {};
}
metadata = new metadata_1.Metadata();
}
return { metadata, options };
}
makeServerStreamRequest(method, serialize, deserialize, argument, metadata, options) {
({ metadata, options } = this.checkMetadataAndOptions(metadata, options));
const call = this[CHANNEL_SYMBOL].createCall(method, options.deadline, options.host, null, options.propagate_flags);
if (options.credentials) {
call.setCredentials(options.credentials);
}
const message = serialize(argument);
const writeObj = { message };
call.sendMetadata(metadata);
call.write(writeObj);
call.end();
return new call_1.ClientReadableStreamImpl(call, deserialize);
}
makeBidiStreamRequest(method, serialize, deserialize, metadata, options) {
({ metadata, options } = this.checkMetadataAndOptions(metadata, options));
const call = this[CHANNEL_SYMBOL].createCall(method, options.deadline, options.host, null, options.propagate_flags);
if (options.credentials) {
call.setCredentials(options.credentials);
}
call.sendMetadata(metadata);
return new call_1.ClientDuplexStreamImpl(call, serialize, deserialize);
}
}
exports.Client = Client;
//# sourceMappingURL=client.js.map
\ No newline at end of file
/// <reference types="node" />
import { Call, WriteObject } from './call-stream';
import { Channel } from './channel';
import { BaseFilter, Filter, FilterFactory } from './filter';
import { Metadata } from './metadata';
export declare class CompressionFilter extends BaseFilter implements Filter {
private sendCompression;
private receiveCompression;
sendMetadata(metadata: Promise<Metadata>): Promise<Metadata>;
receiveMetadata(metadata: Promise<Metadata>): Promise<Metadata>;
sendMessage(message: Promise<WriteObject>): Promise<WriteObject>;
receiveMessage(message: Promise<Buffer>): Promise<Buffer>;
}
export declare class CompressionFilterFactory implements FilterFactory<CompressionFilter> {
private readonly channel;
constructor(channel: Channel);
createFilter(callStream: Call): CompressionFilter;
}
"use strict";
/*
* Copyright 2019 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
Object.defineProperty(exports, "__esModule", { value: true });
const zlib = require("zlib");
const filter_1 = require("./filter");
class CompressionHandler {
/**
* @param message Raw uncompressed message bytes
* @param compress Indicates whether the message should be compressed
* @return Framed message, compressed if applicable
*/
async writeMessage(message, compress) {
let messageBuffer = message;
if (compress) {
messageBuffer = await this.compressMessage(messageBuffer);
}
const output = Buffer.allocUnsafe(messageBuffer.length + 5);
output.writeUInt8(compress ? 1 : 0, 0);
output.writeUInt32BE(messageBuffer.length, 1);
messageBuffer.copy(output, 5);
return output;
}
/**
* @param data Framed message, possibly compressed
* @return Uncompressed message
*/
async readMessage(data) {
const compressed = data.readUInt8(0) === 1;
let messageBuffer = data.slice(5);
if (compressed) {
messageBuffer = await this.decompressMessage(messageBuffer);
}
return messageBuffer;
}
}
class IdentityHandler extends CompressionHandler {
async compressMessage(message) {
return message;
}
async writeMessage(message, compress) {
const output = Buffer.allocUnsafe(message.length + 5);
/* With "identity" compression, messages should always be marked as
* uncompressed */
output.writeUInt8(0, 0);
output.writeUInt32BE(message.length, 1);
message.copy(output, 5);
return output;
}
decompressMessage(message) {
return Promise.reject(new Error('Received compressed message but "grpc-encoding" header was identity'));
}
}
class DeflateHandler extends CompressionHandler {
compressMessage(message) {
return new Promise((resolve, reject) => {
zlib.deflate(message, (err, output) => {
if (err) {
reject(err);
}
else {
resolve(output);
}
});
});
}
decompressMessage(message) {
return new Promise((resolve, reject) => {
zlib.inflate(message, (err, output) => {
if (err) {
reject(err);
}
else {
resolve(output);
}
});
});
}
}
class GzipHandler extends CompressionHandler {
compressMessage(message) {
return new Promise((resolve, reject) => {
zlib.gzip(message, (err, output) => {
if (err) {
reject(err);
}
else {
resolve(output);
}
});
});
}
decompressMessage(message) {
return new Promise((resolve, reject) => {
zlib.unzip(message, (err, output) => {
if (err) {
reject(err);
}
else {
resolve(output);
}
});
});
}
}
class UnknownHandler extends CompressionHandler {
constructor(compressionName) {
super();
this.compressionName = compressionName;
}
compressMessage(message) {
return Promise.reject(new Error(`Received message compressed with unsupported compression method ${this.compressionName}`));
}
decompressMessage(message) {
// This should be unreachable
return Promise.reject(new Error(`Compression method not supported: ${this.compressionName}`));
}
}
function getCompressionHandler(compressionName) {
switch (compressionName) {
case 'identity':
return new IdentityHandler();
case 'deflate':
return new DeflateHandler();
case 'gzip':
return new GzipHandler();
default:
return new UnknownHandler(compressionName);
}
}
class CompressionFilter extends filter_1.BaseFilter {
constructor() {
super(...arguments);
this.sendCompression = new IdentityHandler();
this.receiveCompression = new IdentityHandler();
}
async sendMetadata(metadata) {
const headers = await metadata;
headers.set('grpc-encoding', 'identity');
headers.set('grpc-accept-encoding', 'identity,deflate,gzip');
return headers;
}
async receiveMetadata(metadata) {
const headers = await metadata;
const receiveEncoding = headers.get('grpc-encoding');
if (receiveEncoding.length > 0) {
const encoding = receiveEncoding[0];
if (typeof encoding === 'string') {
this.receiveCompression = getCompressionHandler(encoding);
}
}
headers.remove('grpc-encoding');
headers.remove('grpc-accept-encoding');
return headers;
}
async sendMessage(message) {
/* This filter is special. The input message is the bare message bytes,
* and the output is a framed and possibly compressed message. For this
* reason, this filter should be at the bottom of the filter stack */
const resolvedMessage = await message;
const compress = resolvedMessage.flags === undefined
? false
: (resolvedMessage.flags & 2 /* NoCompress */) === 0;
return {
message: await this.sendCompression.writeMessage(resolvedMessage.message, compress),
flags: resolvedMessage.flags,
};
}
async receiveMessage(message) {
/* This filter is also special. The input message is framed and possibly
* compressed, and the output message is deframed and uncompressed. So
* this is another reason that this filter should be at the bottom of the
* filter stack. */
return this.receiveCompression.readMessage(await message);
}
}
exports.CompressionFilter = CompressionFilter;
class CompressionFilterFactory {
constructor(channel) {
this.channel = channel;
}
createFilter(callStream) {
return new CompressionFilter();
}
}
exports.CompressionFilterFactory = CompressionFilterFactory;
//# sourceMappingURL=compression-filter.js.map
\ No newline at end of file
export declare enum Status {
OK = 0,
CANCELLED = 1,
UNKNOWN = 2,
INVALID_ARGUMENT = 3,
DEADLINE_EXCEEDED = 4,
NOT_FOUND = 5,
ALREADY_EXISTS = 6,
PERMISSION_DENIED = 7,
RESOURCE_EXHAUSTED = 8,
FAILED_PRECONDITION = 9,
ABORTED = 10,
OUT_OF_RANGE = 11,
UNIMPLEMENTED = 12,
INTERNAL = 13,
UNAVAILABLE = 14,
DATA_LOSS = 15,
UNAUTHENTICATED = 16
}
export declare enum LogVerbosity {
DEBUG = 0,
INFO = 1,
ERROR = 2
}
"use strict";
/*
* Copyright 2019 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
Object.defineProperty(exports, "__esModule", { value: true });
var Status;
(function (Status) {
Status[Status["OK"] = 0] = "OK";
Status[Status["CANCELLED"] = 1] = "CANCELLED";
Status[Status["UNKNOWN"] = 2] = "UNKNOWN";
Status[Status["INVALID_ARGUMENT"] = 3] = "INVALID_ARGUMENT";
Status[Status["DEADLINE_EXCEEDED"] = 4] = "DEADLINE_EXCEEDED";
Status[Status["NOT_FOUND"] = 5] = "NOT_FOUND";
Status[Status["ALREADY_EXISTS"] = 6] = "ALREADY_EXISTS";
Status[Status["PERMISSION_DENIED"] = 7] = "PERMISSION_DENIED";
Status[Status["RESOURCE_EXHAUSTED"] = 8] = "RESOURCE_EXHAUSTED";
Status[Status["FAILED_PRECONDITION"] = 9] = "FAILED_PRECONDITION";
Status[Status["ABORTED"] = 10] = "ABORTED";
Status[Status["OUT_OF_RANGE"] = 11] = "OUT_OF_RANGE";
Status[Status["UNIMPLEMENTED"] = 12] = "UNIMPLEMENTED";
Status[Status["INTERNAL"] = 13] = "INTERNAL";
Status[Status["UNAVAILABLE"] = 14] = "UNAVAILABLE";
Status[Status["DATA_LOSS"] = 15] = "DATA_LOSS";
Status[Status["UNAUTHENTICATED"] = 16] = "UNAUTHENTICATED";
})(Status = exports.Status || (exports.Status = {}));
var LogVerbosity;
(function (LogVerbosity) {
LogVerbosity[LogVerbosity["DEBUG"] = 0] = "DEBUG";
LogVerbosity[LogVerbosity["INFO"] = 1] = "INFO";
LogVerbosity[LogVerbosity["ERROR"] = 2] = "ERROR";
})(LogVerbosity = exports.LogVerbosity || (exports.LogVerbosity = {}));
//# sourceMappingURL=constants.js.map
\ No newline at end of file
import { Call } from './call-stream';
import { Channel } from './channel';
import { BaseFilter, Filter, FilterFactory } from './filter';
import { Metadata } from './metadata';
export declare class DeadlineFilter extends BaseFilter implements Filter {
private readonly channel;
private readonly callStream;
private timer;
private deadline;
constructor(channel: Channel, callStream: Call);
sendMetadata(metadata: Promise<Metadata>): Promise<Metadata>;
}
export declare class DeadlineFilterFactory implements FilterFactory<DeadlineFilter> {
private readonly channel;
constructor(channel: Channel);
createFilter(callStream: Call): DeadlineFilter;
}
"use strict";
/*
* Copyright 2019 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
Object.defineProperty(exports, "__esModule", { value: true });
const constants_1 = require("./constants");
const filter_1 = require("./filter");
const units = [
['m', 1],
['S', 1000],
['M', 60 * 1000],
['H', 60 * 60 * 1000],
];
function getDeadline(deadline) {
const now = new Date().getTime();
const timeoutMs = Math.max(deadline - now, 0);
for (const [unit, factor] of units) {
const amount = timeoutMs / factor;
if (amount < 1e8) {
return String(Math.ceil(amount)) + unit;
}
}
throw new Error('Deadline is too far in the future');
}
class DeadlineFilter extends filter_1.BaseFilter {
constructor(channel, callStream) {
super();
this.channel = channel;
this.callStream = callStream;
this.timer = null;
const callDeadline = callStream.getDeadline();
if (callDeadline instanceof Date) {
this.deadline = callDeadline.getTime();
}
else {
this.deadline = callDeadline;
}
const now = new Date().getTime();
let timeout = this.deadline - now;
if (timeout < 0) {
timeout = 0;
}
if (this.deadline !== Infinity) {
this.timer = setTimeout(() => {
callStream.cancelWithStatus(constants_1.Status.DEADLINE_EXCEEDED, 'Deadline exceeded');
}, timeout);
callStream.on('status', () => clearTimeout(this.timer));
}
}
async sendMetadata(metadata) {
if (this.deadline === Infinity) {
return metadata;
}
/* The input metadata promise depends on the original channel.connect()
* promise, so when it is complete that implies that the channel is
* connected */
const finalMetadata = await metadata;
const timeoutString = getDeadline(this.deadline);
finalMetadata.set('grpc-timeout', timeoutString);
return finalMetadata;
}
}
exports.DeadlineFilter = DeadlineFilter;
class DeadlineFilterFactory {
constructor(channel) {
this.channel = channel;
}
createFilter(callStream) {
return new DeadlineFilter(this.channel, callStream);
}
}
exports.DeadlineFilterFactory = DeadlineFilterFactory;
//# sourceMappingURL=deadline-filter.js.map
\ No newline at end of file
export interface EmitterAugmentation1<Name extends string | symbol, Arg> {
addListener(event: Name, listener: (arg1: Arg) => void): this;
emit(event: Name, arg1: Arg): boolean;
on(event: Name, listener: (arg1: Arg) => void): this;
once(event: Name, listener: (arg1: Arg) => void): this;
prependListener(event: Name, listener: (arg1: Arg) => void): this;
prependOnceListener(event: Name, listener: (arg1: Arg) => void): this;
removeListener(event: Name, listener: (arg1: Arg) => void): this;
}
"use strict";
/*
* Copyright 2019 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
Object.defineProperty(exports, "__esModule", { value: true });
//# sourceMappingURL=events.js.map
\ No newline at end of file
/// <reference types="node" />
import { Call, StatusObject, WriteObject } from './call-stream';
import { Filter, FilterFactory } from './filter';
import { Metadata } from './metadata';
export declare class FilterStack implements Filter {
private readonly filters;
constructor(filters: Filter[]);
sendMetadata(metadata: Promise<Metadata>): Promise<Metadata>;
receiveMetadata(metadata: Promise<Metadata>): Promise<Metadata>;
sendMessage(message: Promise<WriteObject>): Promise<WriteObject>;
receiveMessage(message: Promise<Buffer>): Promise<Buffer>;
receiveTrailers(status: Promise<StatusObject>): Promise<StatusObject>;
}
export declare class FilterStackFactory implements FilterFactory<FilterStack> {
private readonly factories;
constructor(factories: Array<FilterFactory<Filter>>);
createFilter(callStream: Call): FilterStack;
}
"use strict";
/*
* Copyright 2019 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
Object.defineProperty(exports, "__esModule", { value: true });
class FilterStack {
constructor(filters) {
this.filters = filters;
}
sendMetadata(metadata) {
let result = metadata;
for (let i = 0; i < this.filters.length; i++) {
result = this.filters[i].sendMetadata(result);
}
return result;
}
receiveMetadata(metadata) {
let result = metadata;
for (let i = this.filters.length - 1; i >= 0; i--) {
result = this.filters[i].receiveMetadata(result);
}
return result;
}
sendMessage(message) {
let result = message;
for (let i = 0; i < this.filters.length; i++) {
result = this.filters[i].sendMessage(result);
}
return result;
}
receiveMessage(message) {
let result = message;
for (let i = this.filters.length - 1; i >= 0; i--) {
result = this.filters[i].receiveMessage(result);
}
return result;
}
receiveTrailers(status) {
let result = status;
for (let i = this.filters.length - 1; i >= 0; i--) {
result = this.filters[i].receiveTrailers(result);
}
return result;
}
}
exports.FilterStack = FilterStack;
class FilterStackFactory {
constructor(factories) {
this.factories = factories;
}
createFilter(callStream) {
return new FilterStack(this.factories.map(factory => factory.createFilter(callStream)));
}
}
exports.FilterStackFactory = FilterStackFactory;
//# sourceMappingURL=filter-stack.js.map
\ No newline at end of file
/// <reference types="node" />
import { Call, StatusObject, WriteObject } from './call-stream';
import { Metadata } from './metadata';
/**
* Filter classes represent related per-call logic and state that is primarily
* used to modify incoming and outgoing data
*/
export interface Filter {
sendMetadata(metadata: Promise<Metadata>): Promise<Metadata>;
receiveMetadata(metadata: Promise<Metadata>): Promise<Metadata>;
sendMessage(message: Promise<WriteObject>): Promise<WriteObject>;
receiveMessage(message: Promise<Buffer>): Promise<Buffer>;
receiveTrailers(status: Promise<StatusObject>): Promise<StatusObject>;
}
export declare abstract class BaseFilter {
sendMetadata(metadata: Promise<Metadata>): Promise<Metadata>;
receiveMetadata(metadata: Promise<Metadata>): Promise<Metadata>;
sendMessage(message: Promise<WriteObject>): Promise<WriteObject>;
receiveMessage(message: Promise<Buffer>): Promise<Buffer>;
receiveTrailers(status: Promise<StatusObject>): Promise<StatusObject>;
}
export interface FilterFactory<T extends Filter> {
createFilter(callStream: Call): T;
}
"use strict";
/*
* Copyright 2019 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
Object.defineProperty(exports, "__esModule", { value: true });
class BaseFilter {
async sendMetadata(metadata) {
return metadata;
}
async receiveMetadata(metadata) {
return metadata;
}
async sendMessage(message) {
return message;
}
async receiveMessage(message) {
return message;
}
async receiveTrailers(status) {
return status;
}
}
exports.BaseFilter = BaseFilter;
//# sourceMappingURL=filter.js.map
\ No newline at end of file
/// <reference types="node" />
import { ClientDuplexStream, ClientReadableStream, ClientUnaryCall, ClientWritableStream, ServiceError } from './call';
import { CallCredentials } from './call-credentials';
import { Deadline, StatusObject } from './call-stream';
import { Channel, ConnectivityState, ChannelImplementation } from './channel';
import { ChannelCredentials } from './channel-credentials';
import { CallOptions, Client } from './client';
import { LogVerbosity, Status } from './constants';
import { Deserialize, loadPackageDefinition, makeClientConstructor, Serialize, ServiceDefinition } from './make-client';
import { Metadata } from './metadata';
import { Server, UntypedHandleCall, UntypedServiceImplementation } from './server';
import { KeyCertPair, ServerCredentials } from './server-credentials';
import { StatusBuilder } from './status-builder';
import { handleBidiStreamingCall, handleServerStreamingCall, handleUnaryCall, ServerUnaryCall, ServerReadableStream, ServerWritableStream, ServerDuplexStream } from './server-call';
export interface OAuth2Client {
getRequestMetadata: (url: string, callback: (err: Error | null, headers?: {
Authorization: string;
}) => void) => void;
getRequestHeaders: (url?: string) => Promise<{
Authorization: string;
}>;
}
/**** Client Credentials ****/
export declare const credentials: {
[key: string]: Function;
};
/**** Metadata ****/
export { Metadata };
/**** Constants ****/
export { LogVerbosity as logVerbosity, Status as status, ConnectivityState as connectivityState, };
/**** Client ****/
export { Client, loadPackageDefinition, makeClientConstructor, makeClientConstructor as makeGenericClientConstructor, ChannelImplementation as Channel, };
/**
* Close a Client object.
* @param client The client to close.
*/
export declare const closeClient: (client: Client) => void;
export declare const waitForClientReady: (client: Client, deadline: number | Date, callback: (error?: Error | undefined) => void) => void;
export { ChannelCredentials, CallCredentials, Deadline, Serialize as serialize, Deserialize as deserialize, ClientUnaryCall, ClientReadableStream, ClientWritableStream, ClientDuplexStream, CallOptions, StatusObject, ServiceError, ServerUnaryCall, ServerReadableStream, ServerWritableStream, ServerDuplexStream, ServiceDefinition, UntypedHandleCall, UntypedServiceImplementation, };
/**** Server ****/
export { handleBidiStreamingCall, handleServerStreamingCall, handleUnaryCall, };
export declare type Call = ClientUnaryCall | ClientReadableStream<any> | ClientWritableStream<any> | ClientDuplexStream<any, any>;
export declare type MetadataListener = (metadata: Metadata, next: Function) => void;
export declare type MessageListener = (message: any, next: Function) => void;
export declare type StatusListener = (status: StatusObject, next: Function) => void;
export interface Listener {
onReceiveMetadata?: MetadataListener;
onReceiveMessage?: MessageListener;
onReceiveStatus?: StatusListener;
}
/**** Unimplemented function stubs ****/
export declare const loadObject: (value: any, options: any) => never;
export declare const load: (filename: any, format: any, options: any) => never;
export declare const setLogger: (logger: Partial<Console>) => void;
export declare const setLogVerbosity: (verbosity: LogVerbosity) => void;
export { Server };
export { ServerCredentials };
export { KeyCertPair };
export declare const getClientChannel: (client: Client) => Channel;
export { StatusBuilder };
export declare const ListenerBuilder: () => never;
export declare const InterceptorBuilder: () => never;
export declare const InterceptingCall: () => never;
export { GrpcObject } from './make-client';
"use strict";
/*
* Copyright 2019 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
Object.defineProperty(exports, "__esModule", { value: true });
const semver = require("semver");
const call_credentials_1 = require("./call-credentials");
exports.CallCredentials = call_credentials_1.CallCredentials;
const channel_1 = require("./channel");
exports.connectivityState = channel_1.ConnectivityState;
exports.Channel = channel_1.ChannelImplementation;
const channel_credentials_1 = require("./channel-credentials");
exports.ChannelCredentials = channel_credentials_1.ChannelCredentials;
const client_1 = require("./client");
exports.Client = client_1.Client;
const constants_1 = require("./constants");
exports.logVerbosity = constants_1.LogVerbosity;
exports.status = constants_1.Status;
const logging = require("./logging");
const make_client_1 = require("./make-client");
exports.loadPackageDefinition = make_client_1.loadPackageDefinition;
exports.makeClientConstructor = make_client_1.makeClientConstructor;
exports.makeGenericClientConstructor = make_client_1.makeClientConstructor;
const metadata_1 = require("./metadata");
exports.Metadata = metadata_1.Metadata;
const server_1 = require("./server");
exports.Server = server_1.Server;
const server_credentials_1 = require("./server-credentials");
exports.ServerCredentials = server_credentials_1.ServerCredentials;
const status_builder_1 = require("./status-builder");
exports.StatusBuilder = status_builder_1.StatusBuilder;
const supportedNodeVersions = require('../../package.json').engines.node;
if (!semver.satisfies(process.version, supportedNodeVersions)) {
throw new Error(`@grpc/grpc-js only works on Node ${supportedNodeVersions}`);
}
function mixin(...sources) {
const result = {};
for (const source of sources) {
for (const propName of Object.getOwnPropertyNames(source)) {
const property = source[propName]; // tslint:disable-line no-any
if (typeof property === 'function') {
result[propName] = property;
}
}
}
return result;
}
/**** Client Credentials ****/
// Using assign only copies enumerable properties, which is what we want
exports.credentials = mixin({
/**
* Create a gRPC credential from a Google credential object.
* @param googleCredentials The authentication client to use.
* @return The resulting CallCredentials object.
*/
createFromGoogleCredential: (googleCredentials) => {
return call_credentials_1.CallCredentials.createFromMetadataGenerator((options, callback) => {
// google-auth-library pre-v2.0.0 does not have getRequestHeaders
// but has getRequestMetadata, which is deprecated in v2.0.0
let getHeaders;
if (typeof googleCredentials.getRequestHeaders === 'function') {
getHeaders = googleCredentials.getRequestHeaders(options.service_url);
}
else {
getHeaders = new Promise((resolve, reject) => {
googleCredentials.getRequestMetadata(options.service_url, (err, headers) => {
if (err) {
reject(err);
return;
}
resolve(headers);
});
});
}
getHeaders.then(headers => {
const metadata = new metadata_1.Metadata();
metadata.add('authorization', headers.Authorization);
callback(null, metadata);
}, err => {
callback(err);
});
});
},
/**
* Combine a ChannelCredentials with any number of CallCredentials into a
* single ChannelCredentials object.
* @param channelCredentials The ChannelCredentials object.
* @param callCredentials Any number of CallCredentials objects.
* @return The resulting ChannelCredentials object.
*/
combineChannelCredentials: (channelCredentials, ...callCredentials) => {
return callCredentials.reduce((acc, other) => acc.compose(other), channelCredentials);
},
/**
* Combine any number of CallCredentials into a single CallCredentials
* object.
* @param first The first CallCredentials object.
* @param additional Any number of additional CallCredentials objects.
* @return The resulting CallCredentials object.
*/
combineCallCredentials: (first, ...additional) => {
return additional.reduce((acc, other) => acc.compose(other), first);
},
}, channel_credentials_1.ChannelCredentials, call_credentials_1.CallCredentials);
/**
* Close a Client object.
* @param client The client to close.
*/
exports.closeClient = (client) => client.close();
exports.waitForClientReady = (client, deadline, callback) => client.waitForReady(deadline, callback);
/**** Unimplemented function stubs ****/
/* tslint:disable:no-any variable-name */
exports.loadObject = (value, options) => {
throw new Error('Not available in this library. Use @grpc/proto-loader and loadPackageDefinition instead');
};
exports.load = (filename, format, options) => {
throw new Error('Not available in this library. Use @grpc/proto-loader and loadPackageDefinition instead');
};
exports.setLogger = (logger) => {
logging.setLogger(logger);
};
exports.setLogVerbosity = (verbosity) => {
logging.setLoggerVerbosity(verbosity);
};
exports.getClientChannel = (client) => {
return client_1.Client.prototype.getChannel.call(client);
};
exports.ListenerBuilder = () => {
throw new Error('Not yet implemented');
};
exports.InterceptorBuilder = () => {
throw new Error('Not yet implemented');
};
exports.InterceptingCall = () => {
throw new Error('Not yet implemented');
};
const resolver = require("./resolver");
const load_balancer = require("./load-balancer");
(() => {
resolver.registerAll();
load_balancer.registerAll();
})();
//# sourceMappingURL=index.js.map
\ No newline at end of file
import { LoadBalancer, ChannelControlHelper } from './load-balancer';
import { LoadBalancingConfig } from './load-balancing-config';
export declare class PickFirstLoadBalancer implements LoadBalancer {
private channelControlHelper;
/**
* The list of backend addresses most recently passed to `updateAddressList`.
*/
private latestAddressList;
/**
* The list of subchannels this load balancer is currently attempting to
* connect to.
*/
private subchannels;
/**
* The current connectivity state of the load balancer.
*/
private currentState;
/**
* The index within the `subchannels` array of the subchannel with the most
* recently started connection attempt.
*/
private currentSubchannelIndex;
private subchannelStateCounts;
/**
* The currently picked subchannel used for making calls. Populated if
* and only if the load balancer's current state is READY. In that case,
* the subchannel's current state is also READY.
*/
private currentPick;
/**
* Listener callback attached to each subchannel in the `subchannels` list
* while establishing a connection.
*/
private subchannelStateListener;
/**
* Listener callback attached to the current picked subchannel.
*/
private pickedSubchannelStateListener;
/**
* Timer reference for the timer tracking when to start
*/
private connectionDelayTimeout;
private triedAllSubchannels;
/**
* Load balancer that attempts to connect to each backend in the address list
* in order, and picks the first one that connects, using it for every
* request.
* @param channelControlHelper `ChannelControlHelper` instance provided by
* this load balancer's owner.
*/
constructor(channelControlHelper: ChannelControlHelper);
private startNextSubchannelConnecting;
/**
* Have a single subchannel in the `subchannels` list start connecting.
* @param subchannelIndex The index into the `subchannels` list.
*/
private startConnecting;
private pickSubchannel;
private updateState;
private resetSubchannelList;
/**
* Start connecting to the address list most recently passed to
* `updateAddressList`.
*/
private connectToAddressList;
updateAddressList(addressList: string[], lbConfig: LoadBalancingConfig | null): void;
exitIdle(): void;
resetBackoff(): void;
destroy(): void;
getTypeName(): string;
replaceChannelControlHelper(channelControlHelper: ChannelControlHelper): void;
}
export declare function setup(): void;
This diff is collapsed. Click to expand it.
import { LoadBalancer, ChannelControlHelper } from './load-balancer';
import { LoadBalancingConfig } from './load-balancing-config';
export declare class RoundRobinLoadBalancer implements LoadBalancer {
private channelControlHelper;
private subchannels;
private currentState;
private subchannelStateListener;
private subchannelStateCounts;
private currentReadyPicker;
constructor(channelControlHelper: ChannelControlHelper);
private calculateAndUpdateState;
private updateState;
private resetSubchannelList;
updateAddressList(addressList: string[], lbConfig: LoadBalancingConfig | null): void;
exitIdle(): void;
resetBackoff(): void;
destroy(): void;
getTypeName(): string;
replaceChannelControlHelper(channelControlHelper: ChannelControlHelper): void;
}
export declare function setup(): void;
"use strict";
/*
* Copyright 2019 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
Object.defineProperty(exports, "__esModule", { value: true });
const load_balancer_1 = require("./load-balancer");
const channel_1 = require("./channel");
const picker_1 = require("./picker");
const TYPE_NAME = 'round_robin';
class RoundRobinPicker {
constructor(subchannelList, nextIndex = 0) {
this.subchannelList = subchannelList;
this.nextIndex = nextIndex;
}
pick(pickArgs) {
const pickedSubchannel = this.subchannelList[this.nextIndex];
this.nextIndex = (this.nextIndex + 1) % this.subchannelList.length;
return {
pickResultType: picker_1.PickResultType.COMPLETE,
subchannel: pickedSubchannel,
status: null
};
}
/**
* Check what the next subchannel returned would be. Used by the load
* balancer implementation to preserve this part of the picker state if
* possible when a subchannel connects or disconnects.
*/
peekNextSubchannel() {
return this.subchannelList[this.nextIndex];
}
}
class RoundRobinLoadBalancer {
constructor(channelControlHelper) {
this.channelControlHelper = channelControlHelper;
this.subchannels = [];
this.currentState = channel_1.ConnectivityState.IDLE;
this.currentReadyPicker = null;
console.log('Using round robin load balancer');
this.updateState(channel_1.ConnectivityState.IDLE, new picker_1.QueuePicker(this));
this.subchannelStateCounts = {
[channel_1.ConnectivityState.CONNECTING]: 0,
[channel_1.ConnectivityState.IDLE]: 0,
[channel_1.ConnectivityState.READY]: 0,
[channel_1.ConnectivityState.SHUTDOWN]: 0,
[channel_1.ConnectivityState.TRANSIENT_FAILURE]: 0
};
this.subchannelStateListener = (subchannel, previousState, newState) => {
this.subchannelStateCounts[previousState] -= 1;
this.subchannelStateCounts[newState] += 1;
this.calculateAndUpdateState();
if (newState === channel_1.ConnectivityState.TRANSIENT_FAILURE) {
this.channelControlHelper.requestReresolution();
}
if (newState === channel_1.ConnectivityState.TRANSIENT_FAILURE || newState === channel_1.ConnectivityState.IDLE) {
subchannel.startConnecting();
}
};
}
calculateAndUpdateState() {
if (this.subchannelStateCounts[channel_1.ConnectivityState.READY] > 0) {
const readySubchannels = this.subchannels.filter(subchannel => subchannel.getConnectivityState() === channel_1.ConnectivityState.READY);
let index = 0;
if (this.currentReadyPicker !== null) {
index = readySubchannels.indexOf(this.currentReadyPicker.peekNextSubchannel());
if (index < 0) {
index = 0;
}
}
this.updateState(channel_1.ConnectivityState.READY, new RoundRobinPicker(readySubchannels, index));
}
else if (this.subchannelStateCounts[channel_1.ConnectivityState.CONNECTING] > 0) {
this.updateState(channel_1.ConnectivityState.CONNECTING, new picker_1.QueuePicker(this));
}
else if (this.subchannelStateCounts[channel_1.ConnectivityState.TRANSIENT_FAILURE] > 0) {
this.updateState(channel_1.ConnectivityState.TRANSIENT_FAILURE, new picker_1.UnavailablePicker());
}
else {
this.updateState(channel_1.ConnectivityState.IDLE, new picker_1.QueuePicker(this));
}
}
updateState(newState, picker) {
if (newState === channel_1.ConnectivityState.READY) {
this.currentReadyPicker = picker;
}
else {
this.currentReadyPicker = null;
}
this.currentState = newState;
this.channelControlHelper.updateState(newState, picker);
}
resetSubchannelList() {
for (const subchannel of this.subchannels) {
subchannel.removeConnectivityStateListener(this.subchannelStateListener);
subchannel.unref();
}
this.subchannelStateCounts = {
[channel_1.ConnectivityState.CONNECTING]: 0,
[channel_1.ConnectivityState.IDLE]: 0,
[channel_1.ConnectivityState.READY]: 0,
[channel_1.ConnectivityState.SHUTDOWN]: 0,
[channel_1.ConnectivityState.TRANSIENT_FAILURE]: 0
};
this.subchannels = [];
}
updateAddressList(addressList, lbConfig) {
this.resetSubchannelList();
this.subchannels = addressList.map(address => this.channelControlHelper.createSubchannel(address, {}));
for (const subchannel of this.subchannels) {
const subchannelState = subchannel.getConnectivityState();
this.subchannelStateCounts[subchannelState] += 1;
if (subchannelState === channel_1.ConnectivityState.IDLE || subchannelState === channel_1.ConnectivityState.TRANSIENT_FAILURE) {
subchannel.startConnecting();
}
}
this.calculateAndUpdateState();
}
exitIdle() {
for (const subchannel of this.subchannels) {
subchannel.startConnecting();
}
}
resetBackoff() {
/* The pick first load balancer does not have a connection backoff, so this
* does nothing */
}
destroy() {
this.resetSubchannelList();
}
getTypeName() {
return TYPE_NAME;
}
replaceChannelControlHelper(channelControlHelper) {
this.channelControlHelper = channelControlHelper;
}
}
exports.RoundRobinLoadBalancer = RoundRobinLoadBalancer;
function setup() {
load_balancer_1.registerLoadBalancerType(TYPE_NAME, RoundRobinLoadBalancer);
}
exports.setup = setup;
//# sourceMappingURL=load-balancer-round-robin.js.map
\ No newline at end of file
import { ChannelOptions } from './channel-options';
import { Subchannel } from './subchannel';
import { ConnectivityState } from './channel';
import { Picker } from './picker';
import { LoadBalancingConfig } from './load-balancing-config';
/**
* A collection of functions associated with a channel that a load balancer
* can call as necessary.
*/
export interface ChannelControlHelper {
/**
* Returns a subchannel connected to the specified address.
* @param subchannelAddress The address to connect to
* @param subchannelArgs Extra channel arguments specified by the load balancer
*/
createSubchannel(subchannelAddress: string, subchannelArgs: ChannelOptions): Subchannel;
/**
* Passes a new subchannel picker up to the channel. This is called if either
* the connectivity state changes or if a different picker is needed for any
* other reason.
* @param connectivityState New connectivity state
* @param picker New picker
*/
updateState(connectivityState: ConnectivityState, picker: Picker): void;
/**
* Request new data from the resolver.
*/
requestReresolution(): void;
}
/**
* Tracks one or more connected subchannels and determines which subchannel
* each request should use.
*/
export interface LoadBalancer {
/**
* Gives the load balancer a new list of addresses to start connecting to.
* The load balancer will start establishing connections with the new list,
* but will continue using any existing connections until the new connections
* are established
* @param addressList The new list of addresses to connect to
* @param lbConfig The load balancing config object from the service config,
* if one was provided
*/
updateAddressList(addressList: string[], lbConfig: LoadBalancingConfig | null): void;
/**
* If the load balancer is currently in the IDLE state, start connecting.
*/
exitIdle(): void;
/**
* If the load balancer is currently in the CONNECTING or TRANSIENT_FAILURE
* state, reset the current connection backoff timeout to its base value and
* transition to CONNECTING if in TRANSIENT_FAILURE.
*/
resetBackoff(): void;
/**
* The load balancer unrefs all of its subchannels and stops calling methods
* of its channel control helper.
*/
destroy(): void;
/**
* Get the type name for this load balancer type. Must be constant across an
* entire load balancer implementation class and must match the name that the
* balancer implementation class was registered with.
*/
getTypeName(): string;
/**
* Replace the existing ChannelControlHelper with a new one
* @param channelControlHelper The new ChannelControlHelper to use from now on
*/
replaceChannelControlHelper(channelControlHelper: ChannelControlHelper): void;
}
export interface LoadBalancerConstructor {
new (channelControlHelper: ChannelControlHelper): LoadBalancer;
}
export declare function registerLoadBalancerType(typeName: string, loadBalancerType: LoadBalancerConstructor): void;
export declare function createLoadBalancer(typeName: string, channelControlHelper: ChannelControlHelper): LoadBalancer | null;
export declare function isLoadBalancerNameRegistered(typeName: string): boolean;
export declare function registerAll(): void;
"use strict";
/*
* Copyright 2019 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
Object.defineProperty(exports, "__esModule", { value: true });
const load_balancer_pick_first = require("./load-balancer-pick-first");
const registeredLoadBalancerTypes = {};
function registerLoadBalancerType(typeName, loadBalancerType) {
registeredLoadBalancerTypes[typeName] = loadBalancerType;
}
exports.registerLoadBalancerType = registerLoadBalancerType;
function createLoadBalancer(typeName, channelControlHelper) {
if (typeName in registeredLoadBalancerTypes) {
return new registeredLoadBalancerTypes[typeName](channelControlHelper);
}
else {
return null;
}
}
exports.createLoadBalancer = createLoadBalancer;
function isLoadBalancerNameRegistered(typeName) {
return typeName in registeredLoadBalancerTypes;
}
exports.isLoadBalancerNameRegistered = isLoadBalancerNameRegistered;
function registerAll() {
load_balancer_pick_first.setup();
}
exports.registerAll = registerAll;
//# sourceMappingURL=load-balancer.js.map
\ No newline at end of file
export interface RoundRobinConfig {
}
export interface XdsConfig {
balancerName: string;
childPolicy: LoadBalancingConfig[];
fallbackPolicy: LoadBalancingConfig[];
}
export interface GrpcLbConfig {
childPolicy: LoadBalancingConfig[];
}
export interface LoadBalancingConfig {
round_robin?: RoundRobinConfig;
xds?: XdsConfig;
grpclb?: GrpcLbConfig;
}
export declare function validateConfig(obj: any): LoadBalancingConfig;
"use strict";
/*
* Copyright 2019 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
Object.defineProperty(exports, "__esModule", { value: true });
/* In these functions we assume the input came from a JSON object. Therefore we
* expect that the prototype is uninteresting and that `in` can be used
* effectively */
function validateXdsConfig(xds) {
if (!('balancerName' in xds) || typeof xds.balancerName !== 'string') {
throw new Error('Invalid xds config: invalid balancerName');
}
const xdsConfig = {
balancerName: xds.balancerName,
childPolicy: [],
fallbackPolicy: [],
};
if ('childPolicy' in xds) {
if (!Array.isArray(xds.childPolicy)) {
throw new Error('Invalid xds config: invalid childPolicy');
}
for (const policy of xds.childPolicy) {
xdsConfig.childPolicy.push(validateConfig(policy));
}
}
if ('fallbackPolicy' in xds) {
if (!Array.isArray(xds.fallbackPolicy)) {
throw new Error('Invalid xds config: invalid fallbackPolicy');
}
for (const policy of xds.fallbackPolicy) {
xdsConfig.fallbackPolicy.push(validateConfig(policy));
}
}
return xdsConfig;
}
function validateGrpcLbConfig(grpclb) {
const grpcLbConfig = {
childPolicy: [],
};
if ('childPolicy' in grpclb) {
if (!Array.isArray(grpclb.childPolicy)) {
throw new Error('Invalid xds config: invalid childPolicy');
}
for (const policy of grpclb.childPolicy) {
grpcLbConfig.childPolicy.push(validateConfig(policy));
}
}
return grpcLbConfig;
}
function validateConfig(obj) {
if ('round_robin' in obj) {
if ('xds' in obj || 'grpclb' in obj) {
throw new Error('Multiple load balancing policies configured');
}
if (obj['round_robin'] instanceof Object) {
return { round_robin: {} };
}
}
if ('xds' in obj) {
if ('grpclb' in obj) {
throw new Error('Multiple load balancing policies configured');
}
return { xds: validateXdsConfig(obj.xds) };
}
if ('grpclb' in obj) {
return { grpclb: validateGrpcLbConfig(obj.grpclb) };
}
throw new Error('No recognized load balancing policy configured');
}
exports.validateConfig = validateConfig;
//# sourceMappingURL=load-balancing-config.js.map
\ No newline at end of file
/// <reference types="node" />
import { LogVerbosity } from './constants';
export declare const getLogger: () => Partial<Console>;
export declare const setLogger: (logger: Partial<Console>) => void;
export declare const setLoggerVerbosity: (verbosity: LogVerbosity) => void;
export declare const log: (severity: LogVerbosity, ...args: any[]) => void;
export declare function trace(severity: LogVerbosity, tracer: string, text: string): void;
"use strict";
/*
* Copyright 2019 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
Object.defineProperty(exports, "__esModule", { value: true });
const constants_1 = require("./constants");
let _logger = console;
let _logVerbosity = constants_1.LogVerbosity.ERROR;
if (process.env.GRPC_VERBOSITY) {
switch (process.env.GRPC_VERBOSITY) {
case 'DEBUG':
_logVerbosity = constants_1.LogVerbosity.DEBUG;
break;
case 'INFO':
_logVerbosity = constants_1.LogVerbosity.INFO;
break;
case 'ERROR':
_logVerbosity = constants_1.LogVerbosity.ERROR;
break;
default:
// Ignore any other values
}
}
exports.getLogger = () => {
return _logger;
};
exports.setLogger = (logger) => {
_logger = logger;
};
exports.setLoggerVerbosity = (verbosity) => {
_logVerbosity = verbosity;
};
// tslint:disable-next-line no-any
exports.log = (severity, ...args) => {
if (severity >= _logVerbosity && typeof _logger.error === 'function') {
_logger.error(...args);
}
};
const enabledTracers = process.env.GRPC_TRACE ? process.env.GRPC_TRACE.split(',') : [];
const allEnabled = enabledTracers.includes('all');
function trace(severity, tracer, text) {
if (allEnabled || enabledTracers.includes(tracer)) {
exports.log(severity, (new Date().toISOString() + ' | ' + tracer + ' | ' + text));
}
}
exports.trace = trace;
//# sourceMappingURL=logging.js.map
\ No newline at end of file
/// <reference types="node" />
import { ChannelCredentials } from './channel-credentials';
import { ChannelOptions } from './channel-options';
import { Client } from './client';
export interface Serialize<T> {
(value: T): Buffer;
}
export interface Deserialize<T> {
(bytes: Buffer): T;
}
export interface MethodDefinition<RequestType, ResponseType> {
path: string;
requestStream: boolean;
responseStream: boolean;
requestSerialize: Serialize<RequestType>;
responseSerialize: Serialize<ResponseType>;
requestDeserialize: Deserialize<RequestType>;
responseDeserialize: Deserialize<ResponseType>;
originalName?: string;
}
export interface ServiceDefinition {
[index: string]: MethodDefinition<any, any>;
}
export interface ProtobufTypeDefinition {
format: string;
type: object;
fileDescriptorProtos: Buffer[];
}
export interface PackageDefinition {
[index: string]: ServiceDefinition | ProtobufTypeDefinition;
}
export interface ServiceClient extends Client {
[methodName: string]: Function;
}
export interface ServiceClientConstructor {
new (address: string, credentials: ChannelCredentials, options?: Partial<ChannelOptions>): ServiceClient;
service: ServiceDefinition;
}
/**
* Creates a constructor for a client with the given methods, as specified in
* the methods argument. The resulting class will have an instance method for
* each method in the service, which is a partial application of one of the
* [Client]{@link grpc.Client} request methods, depending on `requestSerialize`
* and `responseSerialize`, with the `method`, `serialize`, and `deserialize`
* arguments predefined.
* @param methods An object mapping method names to
* method attributes
* @param serviceName The fully qualified name of the service
* @param classOptions An options object.
* @return New client constructor, which is a subclass of
* {@link grpc.Client}, and has the same arguments as that constructor.
*/
export declare function makeClientConstructor(methods: ServiceDefinition, serviceName: string, classOptions?: {}): ServiceClientConstructor;
export interface GrpcObject {
[index: string]: GrpcObject | ServiceClientConstructor | ProtobufTypeDefinition;
}
/**
* Load a gRPC package definition as a gRPC object hierarchy.
* @param packageDef The package definition object.
* @return The resulting gRPC object.
*/
export declare function loadPackageDefinition(packageDef: PackageDefinition): GrpcObject;
"use strict";
/*
* Copyright 2019 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
Object.defineProperty(exports, "__esModule", { value: true });
const client_1 = require("./client");
/**
* Map with short names for each of the requester maker functions. Used in
* makeClientConstructor
* @private
*/
const requesterFuncs = {
unary: client_1.Client.prototype.makeUnaryRequest,
server_stream: client_1.Client.prototype.makeServerStreamRequest,
client_stream: client_1.Client.prototype.makeClientStreamRequest,
bidi: client_1.Client.prototype.makeBidiStreamRequest,
};
/**
* Creates a constructor for a client with the given methods, as specified in
* the methods argument. The resulting class will have an instance method for
* each method in the service, which is a partial application of one of the
* [Client]{@link grpc.Client} request methods, depending on `requestSerialize`
* and `responseSerialize`, with the `method`, `serialize`, and `deserialize`
* arguments predefined.
* @param methods An object mapping method names to
* method attributes
* @param serviceName The fully qualified name of the service
* @param classOptions An options object.
* @return New client constructor, which is a subclass of
* {@link grpc.Client}, and has the same arguments as that constructor.
*/
function makeClientConstructor(methods, serviceName, classOptions) {
if (!classOptions) {
classOptions = {};
}
class ServiceClientImpl extends client_1.Client {
}
Object.keys(methods).forEach(name => {
const attrs = methods[name];
let methodType;
// TODO(murgatroid99): Verify that we don't need this anymore
if (typeof name === 'string' && name.charAt(0) === '$') {
throw new Error('Method names cannot start with $');
}
if (attrs.requestStream) {
if (attrs.responseStream) {
methodType = 'bidi';
}
else {
methodType = 'client_stream';
}
}
else {
if (attrs.responseStream) {
methodType = 'server_stream';
}
else {
methodType = 'unary';
}
}
const serialize = attrs.requestSerialize;
const deserialize = attrs.responseDeserialize;
const methodFunc = partial(requesterFuncs[methodType], attrs.path, serialize, deserialize);
ServiceClientImpl.prototype[name] = methodFunc;
// Associate all provided attributes with the method
Object.assign(ServiceClientImpl.prototype[name], attrs);
if (attrs.originalName) {
ServiceClientImpl.prototype[attrs.originalName] =
ServiceClientImpl.prototype[name];
}
});
ServiceClientImpl.service = methods;
return ServiceClientImpl;
}
exports.makeClientConstructor = makeClientConstructor;
function partial(fn, path, serialize, deserialize) {
// tslint:disable-next-line:no-any
return function (...args) {
return fn.call(this, path, serialize, deserialize, ...args);
};
}
function isProtobufTypeDefinition(obj) {
return 'format' in obj;
}
/**
* Load a gRPC package definition as a gRPC object hierarchy.
* @param packageDef The package definition object.
* @return The resulting gRPC object.
*/
function loadPackageDefinition(packageDef) {
const result = {};
for (const serviceFqn in packageDef) {
if (packageDef.hasOwnProperty(serviceFqn)) {
const service = packageDef[serviceFqn];
const nameComponents = serviceFqn.split('.');
const serviceName = nameComponents[nameComponents.length - 1];
let current = result;
for (const packageName of nameComponents.slice(0, -1)) {
if (!current[packageName]) {
current[packageName] = {};
}
current = current[packageName];
}
if (isProtobufTypeDefinition(service)) {
current[serviceName] = service;
}
else {
current[serviceName] = makeClientConstructor(service, serviceName, {});
}
}
}
return result;
}
exports.loadPackageDefinition = loadPackageDefinition;
//# sourceMappingURL=make-client.js.map
\ No newline at end of file
import { Call } from './call-stream';
import { StatusObject } from './call-stream';
import { Channel } from './channel';
import { BaseFilter, Filter, FilterFactory } from './filter';
export declare class MetadataStatusFilter extends BaseFilter implements Filter {
receiveTrailers(status: Promise<StatusObject>): Promise<StatusObject>;
}
export declare class MetadataStatusFilterFactory implements FilterFactory<MetadataStatusFilter> {
private readonly channel;
constructor(channel: Channel);
createFilter(callStream: Call): MetadataStatusFilter;
}
"use strict";
/*
* Copyright 2019 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
Object.defineProperty(exports, "__esModule", { value: true });
const constants_1 = require("./constants");
const filter_1 = require("./filter");
class MetadataStatusFilter extends filter_1.BaseFilter {
async receiveTrailers(status) {
// tslint:disable-next-line:prefer-const
let { code, details, metadata } = await status;
if (code !== constants_1.Status.UNKNOWN) {
// we already have a known status, so don't assign a new one.
return { code, details, metadata };
}
const metadataMap = metadata.getMap();
if (typeof metadataMap['grpc-status'] === 'string') {
const receivedCode = Number(metadataMap['grpc-status']);
if (receivedCode in constants_1.Status) {
code = receivedCode;
}
metadata.remove('grpc-status');
}
if (typeof metadataMap['grpc-message'] === 'string') {
details = decodeURI(metadataMap['grpc-message']);
metadata.remove('grpc-message');
}
return { code, details, metadata };
}
}
exports.MetadataStatusFilter = MetadataStatusFilter;
class MetadataStatusFilterFactory {
constructor(channel) {
this.channel = channel;
}
createFilter(callStream) {
return new MetadataStatusFilter();
}
}
exports.MetadataStatusFilterFactory = MetadataStatusFilterFactory;
//# sourceMappingURL=metadata-status-filter.js.map
\ No newline at end of file
/// <reference types="node" />
import * as http2 from 'http2';
export declare type MetadataValue = string | Buffer;
export declare type MetadataObject = Map<string, MetadataValue[]>;
export interface MetadataOptions {
idempotentRequest?: boolean;
waitForReady?: boolean;
cacheableRequest?: boolean;
corked?: boolean;
}
/**
* A class for storing metadata. Keys are normalized to lowercase ASCII.
*/
export declare class Metadata {
protected internalRepr: MetadataObject;
private options;
constructor(options?: MetadataOptions);
/**
* Sets the given value for the given key by replacing any other values
* associated with that key. Normalizes the key.
* @param key The key to whose value should be set.
* @param value The value to set. Must be a buffer if and only
* if the normalized key ends with '-bin'.
*/
set(key: string, value: MetadataValue): void;
/**
* Adds the given value for the given key by appending to a list of previous
* values associated with that key. Normalizes the key.
* @param key The key for which a new value should be appended.
* @param value The value to add. Must be a buffer if and only
* if the normalized key ends with '-bin'.
*/
add(key: string, value: MetadataValue): void;
/**
* Removes the given key and any associated values. Normalizes the key.
* @param key The key whose values should be removed.
*/
remove(key: string): void;
/**
* Gets a list of all values associated with the key. Normalizes the key.
* @param key The key whose value should be retrieved.
* @return A list of values associated with the given key.
*/
get(key: string): MetadataValue[];
/**
* Gets a plain object mapping each key to the first value associated with it.
* This reflects the most common way that people will want to see metadata.
* @return A key/value mapping of the metadata.
*/
getMap(): {
[key: string]: MetadataValue;
};
/**
* Clones the metadata object.
* @return The newly cloned object.
*/
clone(): Metadata;
/**
* Merges all key-value pairs from a given Metadata object into this one.
* If both this object and the given object have values in the same key,
* values from the other Metadata object will be appended to this object's
* values.
* @param other A Metadata object.
*/
merge(other: Metadata): void;
setOptions(options: MetadataOptions): void;
getOptions(): MetadataOptions;
/**
* Creates an OutgoingHttpHeaders object that can be used with the http2 API.
*/
toHttp2Headers(): http2.OutgoingHttpHeaders;
private _getCoreRepresentation;
/**
* Returns a new Metadata object based fields in a given IncomingHttpHeaders
* object.
* @param headers An IncomingHttpHeaders object.
*/
static fromHttp2Headers(headers: http2.IncomingHttpHeaders): Metadata;
}
"use strict";
/*
* Copyright 2019 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
Object.defineProperty(exports, "__esModule", { value: true });
const LEGAL_KEY_REGEX = /^[0-9a-z_.-]+$/;
const LEGAL_NON_BINARY_VALUE_REGEX = /^[ -~]*$/;
function isLegalKey(key) {
return LEGAL_KEY_REGEX.test(key);
}
function isLegalNonBinaryValue(value) {
return LEGAL_NON_BINARY_VALUE_REGEX.test(value);
}
function isBinaryKey(key) {
return key.endsWith('-bin');
}
function normalizeKey(key) {
return key.toLowerCase();
}
function validate(key, value) {
if (!isLegalKey(key)) {
throw new Error('Metadata key "' + key + '" contains illegal characters');
}
if (value != null) {
if (isBinaryKey(key)) {
if (!(value instanceof Buffer)) {
throw new Error("keys that end with '-bin' must have Buffer values");
}
}
else {
if (value instanceof Buffer) {
throw new Error("keys that don't end with '-bin' must have String values");
}
if (!isLegalNonBinaryValue(value)) {
throw new Error('Metadata string value "' + value + '" contains illegal characters');
}
}
}
}
/**
* A class for storing metadata. Keys are normalized to lowercase ASCII.
*/
class Metadata {
constructor(options) {
this.internalRepr = new Map();
if (options === undefined) {
this.options = {};
}
else {
this.options = options;
}
}
/**
* Sets the given value for the given key by replacing any other values
* associated with that key. Normalizes the key.
* @param key The key to whose value should be set.
* @param value The value to set. Must be a buffer if and only
* if the normalized key ends with '-bin'.
*/
set(key, value) {
key = normalizeKey(key);
validate(key, value);
this.internalRepr.set(key, [value]);
}
/**
* Adds the given value for the given key by appending to a list of previous
* values associated with that key. Normalizes the key.
* @param key The key for which a new value should be appended.
* @param value The value to add. Must be a buffer if and only
* if the normalized key ends with '-bin'.
*/
add(key, value) {
key = normalizeKey(key);
validate(key, value);
const existingValue = this.internalRepr.get(key);
if (existingValue === undefined) {
this.internalRepr.set(key, [value]);
}
else {
existingValue.push(value);
}
}
/**
* Removes the given key and any associated values. Normalizes the key.
* @param key The key whose values should be removed.
*/
remove(key) {
key = normalizeKey(key);
validate(key);
this.internalRepr.delete(key);
}
/**
* Gets a list of all values associated with the key. Normalizes the key.
* @param key The key whose value should be retrieved.
* @return A list of values associated with the given key.
*/
get(key) {
key = normalizeKey(key);
validate(key);
return this.internalRepr.get(key) || [];
}
/**
* Gets a plain object mapping each key to the first value associated with it.
* This reflects the most common way that people will want to see metadata.
* @return A key/value mapping of the metadata.
*/
getMap() {
const result = {};
this.internalRepr.forEach((values, key) => {
if (values.length > 0) {
const v = values[0];
result[key] = v instanceof Buffer ? v.slice() : v;
}
});
return result;
}
/**
* Clones the metadata object.
* @return The newly cloned object.
*/
clone() {
const newMetadata = new Metadata();
const newInternalRepr = newMetadata.internalRepr;
this.internalRepr.forEach((value, key) => {
const clonedValue = value.map(v => {
if (v instanceof Buffer) {
return Buffer.from(v);
}
else {
return v;
}
});
newInternalRepr.set(key, clonedValue);
});
return newMetadata;
}
/**
* Merges all key-value pairs from a given Metadata object into this one.
* If both this object and the given object have values in the same key,
* values from the other Metadata object will be appended to this object's
* values.
* @param other A Metadata object.
*/
merge(other) {
other.internalRepr.forEach((values, key) => {
const mergedValue = (this.internalRepr.get(key) || []).concat(values);
this.internalRepr.set(key, mergedValue);
});
}
setOptions(options) {
this.options = options;
}
getOptions() {
return this.options;
}
/**
* Creates an OutgoingHttpHeaders object that can be used with the http2 API.
*/
toHttp2Headers() {
// NOTE: Node <8.9 formats http2 headers incorrectly.
const result = {};
this.internalRepr.forEach((values, key) => {
// We assume that the user's interaction with this object is limited to
// through its public API (i.e. keys and values are already validated).
result[key] = values.map(value => {
if (value instanceof Buffer) {
return value.toString('base64');
}
else {
return value;
}
});
});
return result;
}
// For compatibility with the other Metadata implementation
_getCoreRepresentation() {
return this.internalRepr;
}
/**
* Returns a new Metadata object based fields in a given IncomingHttpHeaders
* object.
* @param headers An IncomingHttpHeaders object.
*/
static fromHttp2Headers(headers) {
const result = new Metadata();
Object.keys(headers).forEach(key => {
// Reserved headers (beginning with `:`) are not valid keys.
if (key.charAt(0) === ':') {
return;
}
const values = headers[key];
try {
if (isBinaryKey(key)) {
if (Array.isArray(values)) {
values.forEach(value => {
result.add(key, Buffer.from(value, 'base64'));
});
}
else if (values !== undefined) {
values.split(',').forEach(v => {
result.add(key, Buffer.from(v.trim(), 'base64'));
});
}
}
else {
if (Array.isArray(values)) {
values.forEach(value => {
result.add(key, value);
});
}
else if (values !== undefined) {
values.split(',').forEach(v => result.add(key, v.trim()));
}
}
}
catch (error) {
error.message = `Failed to add metadata entry ${key}: ${values}. ${error.message}`;
process.emitWarning(error);
}
});
return result;
}
}
exports.Metadata = Metadata;
//# sourceMappingURL=metadata.js.map
\ No newline at end of file
/// <reference types="node" />
import { Duplex, Readable, Writable } from 'stream';
import { EmitterAugmentation1 } from './events';
export declare type WriteCallback = (error: Error | null | undefined) => void;
export interface IntermediateObjectReadable<T> extends Readable {
read(size?: number): any & T;
}
export declare type ObjectReadable<T> = {
read(size?: number): T;
} & EmitterAugmentation1<'data', T> & IntermediateObjectReadable<T>;
export interface IntermediateObjectWritable<T> extends Writable {
_write(chunk: any & T, encoding: string, callback: Function): void;
write(chunk: any & T, cb?: WriteCallback): boolean;
write(chunk: any & T, encoding?: any, cb?: WriteCallback): boolean;
setDefaultEncoding(encoding: string): this;
end(): void;
end(chunk: any & T, cb?: Function): void;
end(chunk: any & T, encoding?: any, cb?: Function): void;
}
export interface ObjectWritable<T> extends IntermediateObjectWritable<T> {
_write(chunk: T, encoding: string, callback: Function): void;
write(chunk: T, cb?: Function): boolean;
write(chunk: T, encoding?: any, cb?: Function): boolean;
setDefaultEncoding(encoding: string): this;
end(): void;
end(chunk: T, cb?: Function): void;
end(chunk: T, encoding?: any, cb?: Function): void;
}
export declare type ObjectDuplex<T, U> = {
read(size?: number): U;
_write(chunk: T, encoding: string, callback: Function): void;
write(chunk: T, cb?: Function): boolean;
write(chunk: T, encoding?: any, cb?: Function): boolean;
end(): void;
end(chunk: T, cb?: Function): void;
end(chunk: T, encoding?: any, cb?: Function): void;
} & Duplex & ObjectWritable<T> & ObjectReadable<U>;
"use strict";
/*
* Copyright 2019 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
Object.defineProperty(exports, "__esModule", { value: true });
//# sourceMappingURL=object-stream.js.map
\ No newline at end of file
import { Subchannel } from './subchannel';
import { StatusObject } from './call-stream';
import { Metadata } from './metadata';
import { LoadBalancer } from './load-balancer';
export declare enum PickResultType {
COMPLETE = 0,
QUEUE = 1,
TRANSIENT_FAILURE = 2
}
export interface PickResult {
pickResultType: PickResultType;
/**
* The subchannel to use as the transport for the call. Only meaningful if
* `pickResultType` is COMPLETE. If null, indicates that the call should be
* dropped.
*/
subchannel: Subchannel | null;
/**
* The status object to end the call with. Populated if and only if
* `pickResultType` is TRANSIENT_FAILURE.
*/
status: StatusObject | null;
}
export interface CompletePickResult extends PickResult {
pickResultType: PickResultType.COMPLETE;
subchannel: Subchannel | null;
status: null;
}
export interface QueuePickResult extends PickResult {
pickResultType: PickResultType.QUEUE;
subchannel: null;
status: null;
}
export interface TransientFailurePickResult extends PickResult {
pickResultType: PickResultType.TRANSIENT_FAILURE;
subchannel: null;
status: StatusObject;
}
export interface PickArgs {
metadata: Metadata;
}
/**
* A proxy object representing the momentary state of a load balancer. Picks
* subchannels or returns other information based on that state. Should be
* replaced every time the load balancer changes state.
*/
export interface Picker {
pick(pickArgs: PickArgs): PickResult;
}
/**
* A standard picker representing a load balancer in the TRANSIENT_FAILURE
* state. Always responds to every pick request with an UNAVAILABLE status.
*/
export declare class UnavailablePicker implements Picker {
private status;
constructor(status?: StatusObject);
pick(pickArgs: PickArgs): TransientFailurePickResult;
}
/**
* A standard picker representing a load balancer in the IDLE or CONNECTING
* state. Always responds to every pick request with a QUEUE pick result
* indicating that the pick should be tried again with the next `Picker`. Also
* reports back to the load balancer that a connection should be established
* once any pick is attempted.
*/
export declare class QueuePicker {
private loadBalancer;
private calledExitIdle;
constructor(loadBalancer: LoadBalancer);
pick(pickArgs: PickArgs): QueuePickResult;
}
"use strict";
/*
* Copyright 2019 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
Object.defineProperty(exports, "__esModule", { value: true });
const metadata_1 = require("./metadata");
const constants_1 = require("./constants");
var PickResultType;
(function (PickResultType) {
PickResultType[PickResultType["COMPLETE"] = 0] = "COMPLETE";
PickResultType[PickResultType["QUEUE"] = 1] = "QUEUE";
PickResultType[PickResultType["TRANSIENT_FAILURE"] = 2] = "TRANSIENT_FAILURE";
})(PickResultType = exports.PickResultType || (exports.PickResultType = {}));
/**
* A standard picker representing a load balancer in the TRANSIENT_FAILURE
* state. Always responds to every pick request with an UNAVAILABLE status.
*/
class UnavailablePicker {
constructor(status) {
if (status !== undefined) {
this.status = status;
}
else {
this.status = {
code: constants_1.Status.UNAVAILABLE,
details: 'No connection established',
metadata: new metadata_1.Metadata(),
};
}
}
pick(pickArgs) {
return {
pickResultType: PickResultType.TRANSIENT_FAILURE,
subchannel: null,
status: this.status,
};
}
}
exports.UnavailablePicker = UnavailablePicker;
/**
* A standard picker representing a load balancer in the IDLE or CONNECTING
* state. Always responds to every pick request with a QUEUE pick result
* indicating that the pick should be tried again with the next `Picker`. Also
* reports back to the load balancer that a connection should be established
* once any pick is attempted.
*/
class QueuePicker {
// Constructed with a load balancer. Calls exitIdle on it the first time pick is called
constructor(loadBalancer) {
this.loadBalancer = loadBalancer;
this.calledExitIdle = false;
}
pick(pickArgs) {
if (!this.calledExitIdle) {
process.nextTick(() => {
this.loadBalancer.exitIdle();
});
this.calledExitIdle = true;
}
return {
pickResultType: PickResultType.QUEUE,
subchannel: null,
status: null,
};
}
}
exports.QueuePicker = QueuePicker;
//# sourceMappingURL=picker.js.map
\ No newline at end of file
/**
* Set up the DNS resolver class by registering it as the handler for the
* "dns:" prefix and as the default resolver.
*/
export declare function setup(): void;
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