server.js

require('dotenv').config();
const fetch = require('node-fetch');
require("dotenv").config();
var util = require('util');
var http = require('http');
var HttpStatus = require('http-status-codes');
var express = require('express');
var telegram = require('telegram-bot-api');

const stockOnly = true;
const userId = process.env.TGTG_USER_ID;
//const userToken = process.env.TGTG_USER_TOKEN;
const telegramToken = process.env.TELEGRAM_API_TOKEN;
const email = process.env.TGTG_EMAIL;
//const password = process.env.TGTG_PWD;
//const access_token = "";//process.env.TGTG_TOKEN;
let oldStr = "";

const url='https://apptoogoodtogo.com/api';
const interval = 100;

var app = express();app.get('/', function (req, res) {
  res.send('Hello World!');
});

var api = new telegram({
    token: telegramToken,
});
const chatId = -363155949

function requestEmail(){

  var axios = require('axios');
  var data = '{"device_type":"ANDROID","email":"jo@doublebyte.net"}';

  var config = {
    method: 'post',
    url: 'https://apptoogoodtogo.com/api/auth/v3/authByEmail',
    headers: { 
      'Host': 'apptoogoodtogo.com', 
      'Accept': 'application/json', 
      'User-Agent': 'TGTG/21.11.1 Dalvik/2.1.0 (Linux; U; Android 9; Moto G Build/PQ1A.181205.006)', 
      'Accept-Language': 'en-GB', 
      'Content-Type': 'application/json; charset=utf-8', 
      'Content-Length': '53', 
      'Accept-Encoding': 'gzip, deflate', 
      'Cookie': 'datadome=QPTxYMa-O_0x9cdynbkEX4IUn6bNVbAs6HEqoYgIiSewv09dTCSnqgTS9utJYWjcydkvW1htFOinI1As8ySMXQAVpwh1VKF~04jLW_DdDFdu.KMtindWkMQZB~LzZXM'
    },
    data : data
  };

  axios(config)
  .then(function (response) {
    json = response.data;
    console.log(JSON.stringify(json));
    authRequestByPollingId(json.polling_id);

  })
  .catch(function (error) {
    console.log(error);
  });
}

function authRequestByPollingId(polling_id){

    var axios = require('axios');
    var data = `{"device_type":"ANDROID","email":"jo@doublebyte.net","request_polling_id":"${polling_id}"}`;

    var config = {
      method: 'post',
      url: 'https://apptoogoodtogo.com/api/auth/v3/authByRequestPollingId',
      headers: { 
        'Host': 'apptoogoodtogo.com', 
        'Accept': 'application/json', 
        'User-Agent': 'TGTG/21.11.1 Dalvik/2.1.0 (Linux; U; Android 9; Moto G Build/PQ1A.181205.006)', 
        'Accept-Language': 'en-GB', 
        'Content-Type': 'application/json; charset=utf-8', 
        'Content-Length': '113', 
        'Accept-Encoding': 'gzip, deflate', 
        'Cookie': 'datadome=QPTxYMa-O_0x9cdynbkEX4IUn6bNVbAs6HEqoYgIiSewv09dTCSnqgTS9utJYWjcydkvW1htFOinI1As8ySMXQAVpwh1VKF~04jLW_DdDFdu.KMtindWkMQZB~LzZXM'
      },
      data : data
    };

    axios(config)
    .then(function (response) {
      //console.log(JSON.stringify(response.status));
      console.log("Please check your email.");

      response.data==""?authRequestByPollingId(polling_id): checkLoop(response.data.access_token)

    })
    .catch(function (error) {
      console.log(error);
    });
}

function fn60sec(access_token) {
  // runs every 60 sec and runs on init.
  checkFavorites(access_token);
  }

function checkLoop(access_token){
    
  console.log(access_token);
    fn60sec(access_token);
    setInterval(fn60sec, interval*1000);

    setInterval(function() {
    checkFavorites(access_token);
    }, interval * 1000); // 60 * 1000 milsec

}

function checkFavorites(access_token){

    var axios = require('axios');
    var data = `{"user_id":"${userId}","origin":{"latitude":41.4150419,"longitude":2.1577982},"radius":30.0,"page_size":100,"page":1,"discover":false,"favorites_only":true,"item_categories":[],"diet_categories":[],"with_stock_only":${stockOnly},"hidden_only":false,"we_care_only":false}`;
    
    var config = {
      method: 'post',
      url: `${url}/item/v7/`,
      headers: { 
        'Cookie': 'datadome=5Mw8-dI-oHWoh6nITLamuWQoVACw2.zlJvWc.5njmP_h60FCeoaNG3RTAnsK.~dwhIeb22BmJiHEfNKYar5pSwL5.PYfvoK11Sb6tC48fD_5x1QXzCjG6bJ-n7THEai; datadome=uknuyh3-BcanNwm9fY3TweX6XgaHrz6X~vWiu8-TS.qNsQllW3TAvo30~hYAs_as47PyB2w9QGGOgaqH64a3hvs.KzQSC0HSF2-2oHLWAQLIE4n2e4K00Hi8zYEgCwX', 
        'Accept': 'application/json', 
        'User-Agent': 'TGTG/21.11.1 Dalvik/2.1.0 (Linux; U; Android 9; Moto G Build/PQ1A.181205.006)', 
        'Accept-Language': 'en-GB', 
        'Authorization': `Bearer ${access_token}`, 
        'Content-Type': 'application/json; charset=utf-8', 
        'Content-Length': Buffer.byteLength(data), 
        'Host': 'apptoogoodtogo.com', 
        'Connection': 'close', 
        'Accept-Encoding': 'gzip, deflate'
      },
      data : data
    };

      axios(config)
      .then(function (response) {

        console.log("comes here!");
        var json = response.data; 

        //console.log(json);
        processItems(json, response.status);

        
      })
      .catch(function (error) {
        console.log("Error on 'checkFavorites'");
        console.log(error.message);
      });



}


function processItems(json, status){

    if (json.items){
        console.log("found items");
        const dt = new Date();
        console.log('{ "timestamp": "' + dt.toUTCString() + '", "status": "' 
            + HttpStatus.getStatusText(parseInt(status)) + '", "items": ' 
                + json.items.length + '}');

        if (json.items.length > 0){
            let str = "<b>Some items are available on:</b>\n";

            for(const store of json.items) {
                //console.log(store['store']);
                str+='<u>' + store['store']['store_name'] + '</u>\n';
            }

            if (oldStr !== str){
                api.sendMessage({
                    chat_id: chatId,
                    text: str,
                    parse_mode: "HTML"
                })
    
            }
            oldStr = str;


        }
        
     }
     //else console.log("no items found"); 
}



app.listen(3000, function () {

    console.log('Tg2g Notifier listening on port 3000!');

    requestEmail();
    //authRequestByPollingId("049556b3-6679-49be-999d-cc0d6453adaa");

});