Telegram chat access control with user permission database

🔐 n8n Workflow: Access Control for Internal Chats or Chatbots

This n8n workflow helps you restrict access to your internal chats or chatbots so that only authorized team members can interact with them. It's perfect for setups using Telegram, Slack, or other corporate messengers, where you need to prevent unauthorized users from triggering internal automations.

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📌 Section 1: Trigger & Input

⚡ Receive Message (Telegram Trigger)

Purpose: Captures every incoming message from a user interacting with your Telegram bot (or another messenger).

How it works: When a user sends a message, it instantly triggers the workflow and passes their username or ID as input data.

Benefit: Acts as the entry point for verifying whether a user is allowed to proceed.