Telegraf: Webhook example is not clear

[alkhimey]

What does the three dashes mean?

https://github.com/telegraf/telegraf/blob/b8fe94ebaac3352d833a16c530779ea2691462fb/docs/examples/webhook-bot.js#L15

In general, the docs and the examples are not clear on how to use webhooks.

1. Should I call myself telegrams API to register the webhook, or does telegraf handles this for me?

2. Why does "start webhook directly" requires two steps and a secret path but the bot.launch method does not?

3. What will be the endpoint that I need to register telegram with when using the launch method? My guess is that telegraf generates it automatically but I need to know this for debugging.

[alkhimey]

Ok, after some tinkering I figured myself most of the stuff. Still I think it is good to have these things documented.

My findings:
Three dashes are just an example. the domain parameter is where bot's back-end is deployed. When using the launch function, telegraf will register an endpoint with telegram and will set up the routing inside your application. It will look like https://yourdomain.net/telegraf/<secret hash>. To find out what is the registered endpoint I used getWebhookInfo API call (GET of https://api.telegram.org/bot<bot token>/getWebhookInfo).

[b3z]

// npm install -g localtunnel && lt --port 3000

This comment in line 1 gives you information how to acquire the domain

[thewayur]

what if i want to use serveo? please help me