n8n Chat Webhook: Reply with JavaScript-Generated Markdown

Send a chat message to your n8n Chat webhook and get back a ready-to-render Markdown reply generated in JavaScript.

This n8n automation workflow exposes a public n8n Chat webhook and returns a preformatted Markdown payload demonstrating common formatting elements—so you can quickly verify chat output formatting in your automation pipeline.

What this workflow does

• Receives an incoming message via the public n8n Chat trigger webhook for “When chat message received”.
• Generates a Markdown test payload using a JavaScript step that builds formatting examples, including lists, emphasis, code blocks, blockquotes, and a table.
• Returns the generated Markdown as the workflow output back to the chat client, allowing you to see the rendered result immediately.

Use cases

• Markdown formatting validation for chat experiences in your SaaS or internal tooling.
• Webhook-based testing to confirm your n8n Chat trigger is reachable and responding correctly.
• Automation engineers verifying how generated Markdown content will appear to end users.
• n8n users learning and testing chat response formatting without integrating external services.

Technical details

• n8n Chat trigger: Uses the “When chat message received” trigger to accept incoming chat messages via webhook.
• Code node: Creates the Markdown test payload in JavaScript.
• n8n-nodes-langchainchat: Chat-related trigger integration as reflected in the workflow’s tech stack.

Setup

• Activate the workflow and copy the Chat trigger webhook URL.
• Configure your chat client or HTTP caller to send messages to that webhook URL.