Reverse Proxy

A simple HTTP reverse proxy with in-memory request caching, written in GoLang.

Supported Features

• HTTP Proxying
• HTTP Streaming
• Trailer
• GET request caching
• OpenTelemetry Request Tracing

Demo

1. Run the demo server

   go run ./cmd/demo --port 8000

2. Run the reverse proxy

   go run ./cmd/reverse_proxy --port 8001 --target-url http://localhost:8000

3. Send requests to the demo server through the request proxy

   # JSON Endpoint:
   curl -i --raw http://localhost:8001/json
   
   # HTTP/1.1 200 OK
   # Content-Length: 2
   # Content-Type: application/json
   # Date: Thu, 09 Sep 2021 18:18:54 GMT
   # X-Proxy-Cached: false
   # 
   # {}
   
   # Streaming Endpoint
   curl -i --raw http://localhost:8001/stream
   
   # HTTP/1.1 200 OK
   # Date: Thu, 09 Sep 2021 18:21:20 GMT
   # X-Proxy-Cached: false
   # Transfer-Encoding: chunked
   # 
   # 5
   # hello
   # 5
   # hello
   # 5
   # hello
   # 5
   # hello
   # 5
   # hello
   # 0
   
   # Trailer Endpoint
   curl -i --raw http://localhost:8001/trailer
   
   # HTTP/1.1 200 OK
   # Content-Type: text/plain; charset=utf-8
   # Date: Thu, 09 Sep 2021 18:22:54 GMT
   # Trailer: Atend1,Atend2,Atend3
   # X-Proxy-Cached: false
   # Transfer-Encoding: chunked
   # 
   # 4e
   # This HTTP response has both headers before this text and trailers at the end.
   # 
   # 0
   # Atend1: value 1
   # Atend2: value 2
   # Atend3: value 3