HTTP POST using Telegram Webhook

Question

I have an endpoint that I run using curl command

curl -X POST https://example.com/control -d "channel=X&turn=XXX&id=XXXXXX&auth_key=XXXXX"

I want to bind between Telegram Webhook and that POST , so each time my Telegram bot will get a message it POST to that URL

I tried to register a Telegram webhook:

https://api.telegram.org/bot<telegram_token>/setWebhook?url=https://example.com/control?channel=X&turn=XXX&id=XXXXXX&auth_key=XXXXX

But then I see that the POST sent only for

https://example.com/control?channel=X

Is there a way to attach more data using Telegram webhook?

score 3 · Accepted Answer · answered Nov 28 '22 at 08:56

The problem seems to be that curl understands additional query parameters (turn, id, auth_key) to be parameters for https://api.telegram.org, not for the url that you pass in the url parameter. You can check this with https://httpbin.org :

curl -X POST https://httpbin.org/anything -d "url=https://example.com/control?channel=X&turn=XXX&id=XXXXXX&auth_key=XXXXX"

The returned object contains:

"form": {
    "auth_key": "XXXXX",
    "id": "XXXXXX",
    "turn": "XXX",
    "url": "https://example.com/control?channel=X"
},

Solution is to use --data-urlencode flag instead of -d (which is --data):

curl -X POST "https://httpbin.org/anything" --data-urlencode "url=https://example.com/control?channel=X&turn=XXX&id=XXXXXX&auth_key=XXXXX"

Response:

"form": {
    "url": "https://example.com/control?channel=X&turn=XXX&id=XXXXXX&auth_key=XXXXX"
},

Telegram request:

curl -X POST https://api.telegram.org/bot<telegram_token>/setWebhook --data-urlencode "url=https://example.com/control?channel=X&turn=XXX&id=XXXXXX&auth_key=XXXXX"

See my comment in your question. – druskacik Dec 05 '22 at 13:12 — druskacik, Dec 05 '22 at 13:12

HTTP POST using Telegram Webhook

1 Answers1