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Hébergement VPS n8n | Automatisation sécurisée et évolutive

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👉 Blotato

Blotato

What you'll build

A workflow that turns a Telegram voice note or text message into ONE polished caption + a matching AI image, then publishes to LinkedIn, Instagram, Facebook and Threads through Blotato, and sends you a confirmation back on Telegram. One idea in → four posts + one image out.

This document is a build guide: recreate the workflow node by node, in order. Every value is copy-paste ready.

Flow overview

Telegram Trigger (voice/text)
  -> Configuration (Set)
  -> Route by input type (Switch)
       - Voice -> Download voice file -> Transcribe voice -> Set message (voice)
       - Text  -> Set message (text)
  -> Generate social post (AI Agent -> caption + image_prompt)
       - model : OpenAI Chat Model
       - parser: Caption + image prompt (Structured Output)
  -> Create image (gpt-image-1)
  -> Upload image to Blotato (-> media URL)
  -> Post to LinkedIn -> Post to Instagram -> Post to Facebook -> Post to Threads
  -> Notify on Telegram

Prerequisites & credentials

• Self-hosted n8n (or n8n Cloud with Verified Community Nodes). Blotato is a community node: install it once via Settings → Community Nodes → Install and enter @blotato/n8n-nodes-blotato.
• A Telegram bot token, an OpenAI API key, and a Blotato account with your social accounts connected.