Automation library · Scheduling

Automated reservation system with Telegram and Gemini

Started by an incoming Telegram message, and works across Gmail, Google Sheets and Telegram. It puts Gemini behind a retrieval step, so answers are drawn from documents you supply rather than from the model alone. 9 steps: a working afternoon to understand properly.

MediumCalls a model: GeminiRetrieval

9 stepsMedium: a working afternoon
0Branches: places the flow splits
0Loops or waits
3Services it connects to

The flow

Starts it 1Model 3Service 5

The steps in the order they run, from what starts it.

  1. 1Telegram TriggerTelegram triggerStarts it
  2. 2Google Gemini Chat ModelLm Chat Google GeminiModel
  3. 3court infoGoogle Sheets ToolService
  4. 4GmailGmail ToolService
  5. 5Google SheetsGoogle Sheets ToolService
  6. 6Postgres Chat MemoryMemory Postgres ChatModel
  7. 7Prepare PromptAi TransformService
  8. 8AI AgentAgentModel
  9. 9TelegramTelegramService

How it's built

Starts on
An incoming Telegram message
Steps
9
Size
Medium: a working afternoon
Connects to
Gmail, Google Sheets, Telegram
Model
Gemini
Retrieval
Answers are drawn from documents you supply, not from the model alone

Questions

What does it need to run?

An n8n account, plus your own Gmail, Google Sheets and Telegram accounts, and a key for Gemini. You connect your own accounts after importing it; none are included.

What starts it?

It starts on an incoming Telegram message.

Does it use AI?

Yes. It calls Gemini. Its answers draw on documents you give it, not on the model alone. Model calls are billed by the provider, not by n8n.

How long does it take to set up?

Plan an afternoon. 9 steps is enough that you should read each one before running it.

How do I import it?

Copy the workflow, open a new workflow in n8n and paste. The steps appear on the canvas, ready for your own accounts.

Before you run it

Nothing here has been tested by us. It is somebody's working automation, read and described from its own steps. Treat the connections it wants as a list of accounts it will touch, and read the 9 steps before you point it at anything that matters.