Delete garbage posts from a facebook messenger conversation

deleteGarbage.js

const fs = require("fs");
const login = require("facebook-chat-api");

login({appState: JSON.parse(fs.readFileSync('appstate.json', 'utf8'))}, (err, api) => {
        if(err) return console.error(err);

        api.setOptions({selfListen: true});

        api.listen((err, event) => {
                if(err) return console.error(err);

                console.log(event);

                //only match group chat
                if (event.type == "message" && event.threadID == '1072921849467619') {
                        let a = event.attachments;
                        if(a.length > 0 ) {
                                if (a[0].type == "animated_image") {
                                        api.deleteMessage(event.messageID);
                                }
                        }
                }
                if (event.type == "share" && event.threadID == '1072921849467619') {
                        //if from luke
                        if (event.senderID == '100000179506731')
                                api.deleteMessage(event.messageID);
                }
        });
});

login.js

const fs = require("fs");
const login = require("facebook-chat-api");
const readline = require("readline-sync");

var email = readline.question("Enter your email: ");
var password = readline.question("Enter your password: ", {hideEchoBack: true});
var credentials = {email: email, password: password};

login(credentials, (err, api) => {
        if(err) return console.error(err);

        fs.writeFileSync('appstate.json', JSON.stringify(api.getAppState()));
});