n8n-nodes-bozonx-telegram-file-proxy

n8n community node to encrypt Telegram file URLs for proxying through Cloudflare Worker.

Use Case

Hide Telegram Bot token in file URLs when passing audio/video/document links to third-party services.

Installation

npm install n8n-nodes-bozonx-telegram-file-proxy

Or install directly in n8n:

1. Go to Settings > Community Nodes
2. Install: n8n-nodes-bozonx-telegram-file-proxy

Credentials

Telegram File Proxy API

• Telegram Bot Token: Your bot token from @BotFather (e.g., 123456:ABC-DEF...)
• Worker URL: Cloudflare Worker URL (e.g., https://hidden-url-proxy.your-account.workers.dev)
• AES Key: AES-256 key in base64 format (must match worker's KEY_BASE64 secret)

Generate key:

openssl rand -base64 32

Use the output directly (no prefix needed) in both n8n credentials and worker secret.

Node: Telegram File Proxy

Parameters

• File ID: Telegram file_id from message (e.g., AgACAgIAAxkBAAIBY2...)

The node automatically calls Telegram's getFile API to get the file_path and builds the download URL.

Output

Returns JSON with single field:

{
  "encryptedUrl": "https://worker-url/?q=base64(encrypted_container)"
}

This URL can be passed to external services without exposing your bot token.

Example Workflow

1. Telegram Trigger receives message with file → gets file_id
2. Telegram File Proxy node automatically calls getFile API, gets file_path, encrypts URL
3. HTTP Request sends encryptedUrl to speech-to-text service
4. Service fetches file via worker (token hidden)

Related

• hidden-url-proxy - Cloudflare Worker for decryption and proxying

License

MIT