Python port of PeerJS client.
- Tracked in issue #160 of the official PeerJS project.
Enables Progressive Web Apps to discover and pair directly with Python apps using secure, browser supported WebRTC protocol.
- HTTP Proxy over WebRTC data channel. It allows PeerJS browser clients to make remote REST requests over WebRTC to a local REST API running behind a firewall.
- Plug-and-play functionality that allows seamless Airdrop-like pairing between peers running on the same local network.
See Ambianic UI PNP module for a real-world example how PeerJS Python is used with PnP and HTTP Proxy.
Uses aiortc as Python WebRTC provider. This requires installing a few native dependencies for audio/video media processing.
On Debian/Ubuntu run:
apt install libavdevice-dev libavfilter-dev libopus-dev libvpx-dev pkg-config libsrtp2-dev On OS X run:
brew install ffmpeg opus libvpx pkg-config This project was originally motivated while searching for a way to:
- Connect a Progressive Web App (Ambianic UI) directly and securely to an edge device (Ambianic Edge) running Python app on a Raspberry Pi behind a home Internet router.
Other key requirements:
- Easy Airdrop-like plug and play discovery and pairing between web app and edge devices.
- Direct peer-to-peer connectivity to minimize:
- latency
- architecture complexity
- costs associated with traffic and hosting of tunneling servers
- exposure to public server security attacks
- Support for:
- Secure connections
- Bi-directional data-channel
- Low latency audio/video media streaming
- Bi-directional live audio/video media
- Rely only on standard broadly supported web browser features.
- Stable mobile device support (iOS, Android, Raspberry Pi)
- Stable desktop OS support (Windows, Mac OS, Linux)
- No need for browser plug-ins
- No intermediary cloud service providers to store and sync user data.
- No tedious and complicated NAT setups of dynamic DNS with SSH tunnels between public IP servers and edge devices behind firewall.
- High throughput and scalability via lightweight signaling service without a persistence layer.
Initial working prototype completed. PeerJS Python is now able to connect over WebRTC DataChannel to PeerJS in the browser and exchange messages.
- Complete and test connectivity with signaling server (peerjs-server).
- Complete and test data channel connectivity with web app peers.
- Release initial version to PyPi.
- >90% code coverage with CI tests.
- Port media support.
There are several great projects that solve the problem of accessing IoT devices behind firewall via tunneling servers.
- Python Proxy: Asynchronous tunnel proxy implemented in Python 3 asyncio.
- Proxy.py: HTTP proxy server written in Python.
- Inlets: Reverse proxy and service tunnel written in Go.
- Macchina.io: IoT tunneling proxy written in C++.
A few popular p2p projects that use WebRTC: