WA business api nodejs - node.js

Question

I have a problem with my nodejs code and the connection to the official whatsapp business api.
The bot connects the webhook correctly, the messages arrive to the server correctly but the code I have implemented to make it respond is not being effective, I checked the code from top to bottom but I can't find the fault.
I leave you the codes so you have more context:
whatsappController.js:
const fs = require("fs");
const myConsole = new console.Console(fs.createWriteStream("./logs.txt"));
const whatsappService = require("../services/whatsappService")
const VerifyToken = (req, res) => {
try {
var accessToken = "456E7GR****************************";
var token = req.query["hub.verify_token"];
var challenge = req.query["hub.challenge"];
if(challenge != null && token != null && token == accessToken){
res.send(challenge);
}
else{
res.status(400).send();
}
} catch(e) {
res.status(400).send();
}
}
const ReceivedMessage = (req, res) => {
try {
var entry = (req.body["entry"])[0];
var changes = (entry["changes"])[0];
var value = changes["value"];
var messageObject = value["messages"];
if(typeof messageObject != "undefined"){
var messages = messageObject[0];
var text = GetTextUser(messages);
var number = messages["from"];
myConsole.log("Message: " + text + " from: " + number);
whatsappService.SendMessageWhatsApp("The user say: " + text, number);
myConsole.log(messages);
myConsole.log(messageObject);
}
res.send("EVENT_RECEIVED");
}catch(e) {
myConsole.log(e);
res.send("EVENT_RECEIVED");
}
}
function GetTextUser(messages){
var text = "";
var typeMessage = messages["type"];
if(typeMessage == "text"){
text = (messages["text"])["body"];
}
else if(typeMessage == "interactive"){
var interactiveObject = messages["interactive"];
var typeInteractive = interactiveObject["type"];
if(typeInteractive == "button_reply"){
text = (interactiveObject["button_reply"])["title"];
}
else if(typeInteractive == "list_reply"){
text = (interactiveObject["list_reply"])["title"];
}else{
myConsole.log("sin mensaje");
}
}else{
myConsole.log("sin mensaje");
}
return text;
}
module.exports = {
VerifyToken,
ReceivedMessage
}
The second file is whatsappService which I make the connection with the api using the token and I also send the format of the message I want to send when I receive a hello for example...
const https = require("https");
function SendMessageWhatsApp(textResponse, number){
const data = JSON.stringify({
"messaging_product": "whatsapp",
"recipient_type": "individual",
"to": number,
"type": "text",
"text": {
"preview_url": false,
"body": textResponse
}
});
const options = {
host:"graph.facebook.com",
path:"/v15.0/1119744*************/messages",
method:"POST",
body:data,
headers: {
"Content-Type":"application/json",
Authorization:"Bearer EAAWNbICfuWEBAK5ObPbD******************************************************"
}
};
const req = https.request(options, res => {
res.on("data", d=> {
process.stdout.write(d);
});
});
req.on("error", error => {
console.error(error);
});
req.write(data);
req.end();
}
module.exports = {
SendMessageWhatsApp
};
Then I declare the routes for the get (to check token) and post (to receive and reply to messages) methods:
const expres = require("express");
const router = expres.Router();
const whatsappController = require("../controllers/whatsappControllers");
router
.get("/", whatsappController.VerifyToken)
.post("/", whatsappController.ReceivedMessage)
module.exports = router;
Last but not least the index file for the code to run correctly:
const express = require("express");
const apiRoute = require("./routes/routes");
const app = express();
const PORT = process.env.PORT || 3000
app.use(express.json());
app.use("/whatsapp", apiRoute);
app.listen(PORT, () => (console.log("El puerto es: " + PORT)));
I should clarify that I did the tests with Postman and they were all successful, it responds and receives messages correctly, finally I did the tests by uploading the bot to the Azure service and it works without problem until it has to answer/replicate the user's message.
The bot is not responding to the user when he talks to it but everything arrives correctly to the server and it processes it with a 200 response. I attach the evidence that there is no problem in the reception.
Finally I must say that in the meta platform I have everything configured as specified by the same platform, I have already configured the api to answer the messages through the webhooks and everything is correct, I just can't get the bot to answer correctly.
The bot is hosted in the Azure service.

Answer 1

Solved: some numbers have a problema with the api of WAB in my country (Argentina) the phone numbers start in +54 9 11. The problem is the 9 in the phone number, and this have a conflict in the servers of meta, Solution quit number 9 to numbers of this country and the message will send to user.