socketio.js
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const db = require('./db.js');
const secret_key = require('../keys/api_option').key;
const requesting = require('request');
const lat = "37.239795";
const lon = "127.083240";
module.exports = (server, app) => {
const io = require('socket.io', )(server, {
transports: ['websocket']
});
let info = {}
const CALL = (when, what) => {
requesting.get({
// api를 요청할 주소 -- 시크릿키,위도,경도 입력
url: `https://api2.sktelecom.com/weather/${when}/${what}?appKey=${secret_key}&lat=${lat}&lon=${lon}`,
json: true
},
//api에게 응답 받았을때 실행되는 callback function
function (err, api_res, api_body) {
if (err) throw err;
// api의 대답이 있을경우 실행
if (api_res) {
return api_body;
// api_body.weather.minutely[0]
}
});
}
io.on('connection', (socket) => { //웹 페이지 연결시 루프 동작
let API_CALL;
let Current_Weather;
let Sensible_T;
let Heat_index;
let Discomport_index;
let Ultra_Violet_index;
socket.on("connection", () => {
API_CALL = setInterval(() => {
Current_Weather = CALL("current","minutely"); //현재날씨 (분별)
Sensible_T = CALL("index","wct"); //체감온도
Heat_index = CALL("index","heat"); //열지수
Discomport_index = CALL("index","th"); //불쾌지수
Ultra_Violet_index = CALL("index","uv"); //자외선지수
socket.emit("weatherInfo_minutely_send_to_cliend",info);
}, 60 * 1000); //1분마다 호출
});
socket.on('disconnecting', (reason) => {
clearInterval(API_CALL); //연결 종료시 해제
})
})
}