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jupyter-web-proxy

v0.1.5

Published

A CLI proxy to securely connect web apps to jupyter servers via HTTP and WebSocket.

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Links

Git

Maintainers

maglandmagland

Keywords

jupyterproxywebsocketclijupyterhub

Readme

jupyter-web-proxy

A proxy tool designed for web applications like nbfiddle and dandiset-explorer to connect to JupyterHub resources (such as dandihub). It securely manages HTTP and WebSocket connections between web applications and Jupyter servers.

Installation

npm install -g jupyter-web-proxy

Usage

jupyter-web-proxy <jupyter-url> -t <token> [options]

Required Arguments

  • jupyter-url: URL of the Jupyter server (e.g., https://hub.dandiarchive.org/user/username)
  • -t, --token: JupyterHub API token

Optional Arguments

  • -p, --port: Local proxy port (default: 8010)
  • -o, --allowed-origins: Comma-separated list of allowed CORS origins (e.g., https://nbfiddle.org)

Examples

# Basic usage with nbfiddle.org
jupyter-web-proxy https://hub.dandiarchive.org/user/myname -t abc123 -p 8010 -o https://nbfiddle.org

# Usage with multiple allowed origins
jupyter-web-proxy https://hub.dandiarchive.org/user/<user> -t <token> -o https://nbfiddle.app,https://dandi-ai-notebooks.github.io

Getting a JupyterHub API Token

To obtain an API token from JupyterHub:

  1. Log in to your JupyterHub instance (e.g., https://hub.dandiarchive.org)
  2. Click on "File" > "Hub Control Panel"
  3. Go to the "Token" or "API Tokens" section
  4. Click "Generate Token" and copy the generated token

Web Application Configuration

By default, the proxy runs on port 8010. You can change this using the -p option. In your web application (e.g., nbfiddle.app), configure it to connect to:

http://localhost:8010

Technical Details

The proxy:

  • Forwards HTTP and WebSocket requests to the specified Jupyter server
  • Adds authentication headers to all requests
  • Manages CORS headers for web application access
  • Handles connection upgrades for WebSocket support
  • Provides error reporting for failed connections

License

Apache License 2.0