I'm trying use Telegraf library with Firebase Functions but it's not working as I expected.
I follow these this article and instructions as appear in webhooks (as appears for express example) and webhookcallback as appear in telegraf docs.
const Telegraf = require('telegraf')
// The Cloud Functions for Firebase SDK to create Cloud Functions and setup triggers.
const functions = require('firebase-functions')
// The Firebase Admin SDK to access the Firebase Realtime or Firestore Database.
const admin = require('firebase-admin')
// set telegraf and responses.
const BOT_TOKEN = 'my-telegram-bot-token'
const bot = new Telegraf(BOT_TOKEN)
bot.start((ctx) => ctx.reply("Start instructions"))
bot.help((ctx) => ctx.reply("This is help"))
bot.hears('hi', (ctx) => ctx.reply('Hola'))
bot.on('text', (ctx) => ctx.reply('Response to any text'))
bot.catch((err, ctx) => {
console.log(`Ooops, ecountered an error for ${ctx.updateType}`, err)
})
// initialize bot
bot.launch() // <-- (2)
//appends middleware
exports.ideas2coolBot = functions.https.onRequest(bot.webhookCallback(`/my-path`));
In firebase server I need add bot.launch() (2) to get worked, but it works just for max timeout set in Firebase Function. I need to recall Telegram "setWebhook" API to get work again and it works for the same time. It's like it's generate one function instance and shut down when time is over.
I noted the telegraf.launch() have options to start in poll or webhook mode but its not pretty clear for me how to use this options.
How should I use telegram.launch() to get worked in webhook mode in Firebase?
Edit: When I used getWebhookInfo I get this result:
{
"ok": true,
"result": {
"url": "https://0dbee201.ngrok.io/test-app-project/us-central1/testAppFunction/bot",
"has_custom_certificate": false,
"pending_update_count": 7,
"last_error_date": 1573053003,
"last_error_message": "Read timeout expired",
"max_connections": 40
}
}
and console shows incoming conection but do nothing...
i functions: Beginning execution of "ideas2coolBot"
i functions: Finished "ideas2coolBot" in ~1s
Edit2:
I've been trying adding Express too...
app.use(bot.webhookCallback('/bot'))
app.get('/', (req, res) => {
res.send('Hello World from Firebase!')
})
exports.ideas2coolBot = functions.https.onRequest(app);
it's works '/' path but got nothing with '/bot'. POST to '/bot' not response.
By the way, I tried a express standalone version and works prefect, but using it with firebase doesn't respond ("Read timeout expired").
