NooBLineThaiPost_API_0

const REGION = 'asia-northeast1';
const functions = require('firebase-functions');
const request = require('request-promise');

const LINE_MESSAGING_API = 'https://api.line.me/v2/bot/message';
const LINE_HEADER = {
    'Content-Type': 'application/json',
    'Authorization': `Bearer xxxxx`
  };
  
const THAIPOST_TOKEN = 'yyyyy';
  

exports.zzzzzLineBot = functions.region(REGION).https.onRequest((req, res) => {
  if (req.body.events[0].message.type !== 'text') {
    return;
  }
  let message = req.body.events[0].message.text;
  gettrack(req, message);

  async function gettrack(req, message)
  {
      let promise_token = new Promise(resolve => {
          var options = {
              method: 'POST',
              uri: 'https://trackapi.thailandpost.co.th/post/api/v1/authenticate/token',
              strictSSL: false,
              headers: {
                  'Content-Type': 'application/json',
                  'Authorization': 'Token ' + THAIPOST_TOKEN
              }
          };
          
          request(options, function(error, response, body) {
              resolve(JSON.parse(body));
          });
      });
      
      let access_token = await promise_token;
      let params = {
          "status": "all",
          "language": "TH",
          "barcode": [
              message
         ]
      };
      let promise_track = new Promise(resolve => {
          var options = {
              method: 'POST',
              uri: 'https://trackapi.thailandpost.co.th/post/api/v1/track',
              strictSSL: false,
              body: JSON.stringify(params),
              headers: {
                  'Content-Type': 'application/json',
                  'Authorization': 'Token ' + access_token.token
              }
          };
          
          request(options, function(error, response, body) {
              resolve( JSON.parse(body) );
          });
      });

      let tracks = await promise_track;
      console.log('Track Result', JSON.stringify(tracks) );

      reply_text(req, JSON.stringify(tracks) );
      
  }
});

const reply_text = (req, message) => {
  return request({
      method: `POST`,
      uri: `${LINE_MESSAGING_API}/reply`,
      headers: LINE_HEADER,
      body: JSON.stringify({
          replyToken: req.body.events[0].replyToken,
          messages: [
              {
                  type: `text`,
                  text: message
              }
          ]
      })
  });
};