controller.js
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var request = require('request');
var template = require('./template.js');
exports.handleMessage=function(sender_psid, received_message) {
var response;
var text = received_message.text;
if(text === "처음으로"){
template.greetingTemplate(function(result, res){
if(result==true){
response=res;
callSendAPI(sender_psid, response)
}
});
}else{
template.choiceLectProfTemplate(text, function(result, res){
if(result==true){
response=res;
console.log("text2:",response)
callSendAPI(sender_psid, response);
}
});
}
}
exports.handlePostback =function(sender_psid, received_postback) {
var response;
// Get the payload for the postback
var payload = received_postback.payload;
var firstchoice = payload.substr(0,14);
// Set the response based on the postback payload
if(payload === 'Greeting'){
console.log('Greeting');
template.greetingTemplate(function(result, res){
if(result==true){
console.log(res);
response=res;
}
});
callSendAPI(sender_psid, response);
}else if(firstchoice === 'CHOICE_BY_PROF'){
handlePostback_choiceByProf(sender_psid, received_postback);
}else if(firstchoice === 'CHOICE_BY_LECT'){
handlePostback_choiceByLect(sender_psid, received_postback);
}else if(firstchoice === 'CHOICE_BY_HELP'){
handlePostback_help(sender_psid, received_postback);
}else if(payload.substr(0,8) === 'MoreRate'){
template.moreRateTemplate(payload, function(result, res){
if(result==true){
console.log(res);
response=res;
callSendAPI(sender_psid, response);
}
});
}
}
const handlePostback_choiceByProf = function(sender_psid, received){
var response;
var payload = received.payload;
var stat = payload.substr(14,6);
if(stat === 'stat_0'){
template.getProfNameTemplate(function(result, res){
if(result==true){
console.log(res);
response=res;
callSendAPI(sender_psid, response);
}
});
}else if(stat === 'stat_2'){
template.moreProfTemplate(payload,function(result, res){
if(result==true){
console.log(res);
response=res;
callSendAPI(sender_psid, response);
}
});
}else if(stat === 'stat_3'){
template.rateTemplate(payload,function(result, res){
if(result==true){
console.log(res);
response=res;
callSendAPI(sender_psid, response);
}
});
}
}
const handlePostback_choiceByLect = function(sender_psid, received){
var response;
var payload = received.payload;
var stat = payload.substr(14,6);
if(stat === 'stat_0'){
template.getLectNameTemplate(function(result, res){
if(result==true){
console.log(res);
response=res;
callSendAPI(sender_psid, response);
}
});
}else if(stat === 'stat_2'){
template.moreLectTemplate(payload,function(result, res){
if(result==true){
console.log(res);
response=res;
callSendAPI(sender_psid, response);
}
});
}else if(stat === 'stat_3'){
template.rateTemplate(payload,function(result, res){
if(result==true){
console.log(res);
response=res;
callSendAPI(sender_psid, response);
}
});
}
}
const handlePostback_help = function(sender_psid, received) {
var response;
var payload = received.payload;
var stat = payload.substr(14,6);
if(stat === 'stat_0'){
template.howToTemplate(function(result, res){
if(result==true){
console.log(res);
response=res;
callSendAPI(sender_psid, response);
}
});
}
}
// Sends response messages via the Send API
const callSendAPI = (sender_psid, response, cb=null) => {
console.log('response:'+response);
// Send the HTTP request to the Messenger Platform
request({
"url": "https://graph.facebook.com/v2.6/me/messages",
"qs": { "access_token": process.env.PAGE_ACCESS_TOKEN },
"method": "POST",
"json": {
recipient: {id: sender_psid},
message: response
}
}, (err, res, body) => {
if (!err) {
console.log('message sent!');
console.log('res: ',response);
} else {
console.error("Unable to send message:" + err);
}
});
}