Facebook Messenger APIs: Send multiple/bulk messages (batched requests) with Node.js

fb-batched-requests.js

/*
There are a lot of examples on FB Messenger Dev Docs how to send multiple messages
using curl in command line (terminal).
This code demonstraits how to send these messages using Node.js
*/

"use strict"

const request = require("request");
const fs = require("fs");

//code runs from terminal (node send.js), so variables to be extracted from process.argv
const args = process.argv.slice(2);
const token = args[0];
const id = args[1];
const fbEnd = "https://graph.facebook.com";

//create form (i.e. multipart/form-data)
const r = request.post(fbEnd, (err, httpResponse, body) => {
    if (err) {return console.error("batch send error: ", err)};
    console.log("batch send successfull: ", body)
});
const form = r.form();

//create batch messages
const rec = "recipient=" + encodeURIComponent(JSON.stringify({"id": id})); //needs to be URLEncoded

const welcomText = "message=" + encodeURIComponent(JSON.stringify( //messages request also needs to be URLEncoded
    {"text": "Hi there :) I'm a super bot, yeap\nLook at the picture"
}));
const picture = "message=" + encodeURIComponent(JSON.stringify({ //URLEncoded
    "attachment": {"type": "image", "payload": {"attachment_id": "5146444383580061"}} //id of picture that was
                                                                                      //previously sent and got id
                                                                                      //see link below
}));

//name in batched messages is used to make dependance between messages, so they to be sent sequentially
//look at 'depends_on' parametr
const batchMessages = JSON.stringify([ //whole request need to be stringified to attach to form
    {"method":"POST", "name": "senderAction", "relative_url":"v2.6/me/messages", "body": rec + "&" + "sender_action=typing_on"}, //to display typing on bubble :)
    {"method":"POST", "name": "welcome", "depends_on":"senderAction", "relative_url":"v2.6/me/messages", "body": rec + "&" + welcomText},
    {"method":"POST", "name": "picture", "depends_on": "welcome","relative_url":"v2.6/me/messages", "body": rec + "&" + picture}
]);

form.append("access_token", token);
form.append('batch', batchMessages);

/*
link to upload&send image with Node.JS
to Facebook Messenger
https://gist.github.com/yura321y/9af845522b4fea75c092f89c113f207d
*/

Instead of an API, I use another software called cucomm. The program automatically sends messages to users on Facebook and can add them to friends. I advise you to try it.

I have tried the Cucomm but it doesn't look right lots of risks to proceed Now where in 2023 do you have any ways to send bulk messages on messenger without getting flagged as spam or something similar?