DEV Community

Alex Laird
Alex Laird

Posted on • Edited on

pyngrok — a Python wrapper for ngrok

#ngrok #python #tunnel #webhook

pyngrok - a Python wrapper for ngrok

pyngrok is a Python wrapper for ngrok that manages its own binary, making ngrok available via a convenient Python API and the command line.

ngrok is a reverse proxy that opens secure tunnels from public URLs to localhost. It's perfect for rapid development (test webhooks, demo local websites, enable SSH access), establishing ingress to external networks and devices, building production APIs (traffic policies, OAuth, load balancing), and more. And it's made even more powerful with native Python integration through the pyngrok client.

Installation

pyngrok is available on PyPI and can be installed using pip:

pip install pyngrok
Enter fullscreen mode Exit fullscreen mode

or conda:

conda install -c conda-forge pyngrok
Enter fullscreen mode Exit fullscreen mode

That's it! pyngrok is now available as a package to your Python projects, and ngrok is now available from the command line.

Basic Usage

Open a Tunnel

To open a tunnel, use the connect method, which returns a NgrokTunnel, and this returned object has a reference to the public URL generated by ngrok in its public_url attribute.

from pyngrok import ngrok

# Open a HTTP tunnel on the default port 80
# <NgrokTunnel: "https://<public_sub>.ngrok.io" -> "http://localhost:80">
http_tunnel = ngrok.connect()

# Open a SSH tunnel
# <NgrokTunnel: "tcp://0.tcp.ngrok.io:12345" -> "localhost:22">
ssh_tunnel = ngrok.connect("22", "tcp")

# Open a named tunnel from the config file
named_tunnel = ngrok.connect(name="my-config-file-tunnel")

# Open an Internal Endpoint that's load balanced
# <NgrokTunnel: "https://some-endpoint.internal" -> "http://localhost:9000">
internal_endpoint = ngrok.connect(addr="9000",
                                  domain="some-endpoint.internal",
                                  pooling_enabled=True)
Enter fullscreen mode Exit fullscreen mode

The connect method takes kwargs as well, which allows you to pass additional tunnel configurations that are supported by ngrok (or the name of a tunnel defined in ngrok's config file), as documented here.

ngrok's API

The api method allows you to use the local ngrok agent to make requests against the ngrok API, if you have set an API key. For example, here's how you would reserve a ngrok domain, then create a Cloud Endpoint with an associated traffic policy:

from pyngrok import ngrok

domain = "some-domain.ngrok.dev"
ngrok.api("reserved-domains", "create",
          "--domain", domain)
ngrok.api("endpoints", "create",
          "--bindings", "public",
          "--url", f"https://{domain}",
          "--traffic-policy-file", "policy.yml")
Enter fullscreen mode Exit fullscreen mode

Command Line Usage

This package puts the default ngrok binary on your path, so all features of ngrok are available on the command line.

ngrok http 80
Enter fullscreen mode Exit fullscreen mode

For details on how to fully leverage ngrok from the command line, see ngrok's official documentation.

Documentation

For more advanced usage, pyngrok's official documentation is available on Read the Docs.

Integration Examples

Contributing

If you would like to get involved, be sure to review the Contribution Guide.

Want to contribute financially? If you've found pyngrok useful, sponsorship would also be greatly appreciated!

Top comments (0)

OSZAR »