Reverse_proxy_plug_websocket - websocket proxying in Elixir

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Iā€™m excited to share reverse_proxy_plug_websocket, a library for reverse proxying websocket connections in Elixir.

This idea grew out of several tickets filed on the reverse_proxy_plug project around a need to support websockets. This library handles the complexity of:

  • Detecting WebSocket upgrade requests

  • Establishing connections to upstream WebSocket servers

  • Maintaining bidirectional message flow between clients and upstream

  • Managing connection lifecycle and cleanup

It supports Gun and Websockex as adapters for the actual websocket functionality.

Proxying in a language like Elixir allows for dynamic runtime behaviour, described in the README, and (hopefully soon) the ability to rewrite or instrument the data stream itself, as required.

Feedback most welcome!

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