Telegram AI Q&A from Google Drive with Gemini (n8n)

Turn your Telegram chat into a Google Drive–grounded AI Q&A assistant (n8n + Gemini)

This n8n workflow lets you ask questions in Telegram and receive answers generated by Google Gemini—grounded in documents from a specified Google Drive folder. The bot searches your Drive, reads the most relevant files, and replies back in the same Telegram conversation with source file names.

What this workflow does

• Triggers on Telegram messages using a Telegram Trigger when a new chat message is received.
• Sends the user’s question to a Google Gemini–powered agent that maintains recent conversation context per Telegram chat.
• The agent lists files available in the configured Google Drive folder and selects the most relevant ones for the question.
• Downloads the selected files and converts them for reading:
  • Google Docs → text
  • Google Slides → PDF
  • Google Sheets → CSV
• Generates an answer based only on the downloaded document contents, including the source file name(s) in the response.
• Sends the final reply back to the same Telegram chat.

Use cases

• Ask staff questions like “What does our onboarding doc say about access requests?” with answers pulled from your Drive folder.
• Enable SaaS support teams to quickly retrieve answers from internal knowledge docs without copying/pasting content.
• Let operators query policy spreadsheets and slide decks, with outputs grounded in the actual Drive files.

Technical details

• Telegram: Telegram Trigger for incoming messages and messaging back to the chat.
• n8n LangChain agent: n8nn8n-nodes-langchainagent with conversation context handling.
• Google Gemini (PaLM): n8nn8n-nodes-langchainlm chat google gemini as the language model.
• Google Drive tool: lists, selects, downloads, and reads files from a configured Drive folder.
• Sticky Note: included as a workflow aid.

Setup requires connecting Telegram Bot API credentials, Google Drive OAuth2 credentials (and folder access), and a Google Gemini API credential—then activating the workflow and testing by sending questions to your Telegram bot.