Telegram sends updates to N8N via webhooks, and there is no limit to the number of updates it can send. However, Telegram imposes an API rate limit of 30 requests per second. Consequently, there exists a restriction on the volume of updates that can be sent via the API each day, posing a scalability challenge. To address this, Telegram recommends responding to webhooks with a reply to the webhook itself.
Presently, the Telegram N8N node lacks the functionality to respond to a webhook with a response message. The following is an excerpt from Telegram’s FAQ addressing this issue:
To enhance scalability and efficiency, implementing the ability to respond to webhooks with response messages in the Telegram N8N node is essential.