Small HTTP service that reads a proxy URL from config.json, accepts a URL-encoded destination in the route query string, calls the destination through the configured proxy (with optional basic auth embedded in the URL), and streams the upstream response back to the caller.

Create config.json in the project root:

{ "proxy_url": "https://user:password@proxy-host:port" }

proxy_url must be an absolute HTTP(S) proxy URL. Basic-auth credentials in the URL are supported.

go run main.go # listens on :8080 (override with PORT env var)

Fetch a target URL (the route value must be URL-encoded):

TARGET="https://example.com/data" curl "http://localhost:8080/fetch?route=$(python3 -c 'import urllib.parse,os;print(urllib.parse.quote(os.environ[\"TARGET\"]))')"

• Build image:

  docker build -t proxyurl .

• Run by mounting your config.json (not baked into the image):

  docker run -p 8080:8080 \ -v $(pwd)/config.json:/app/config.json:ro \ proxyurl

• If you mount the file elsewhere, set CONFIG_PATH:

  docker run -p 8080:8080 \ -v $(pwd)/config.json:/config/config.json:ro \ -e CONFIG_PATH=/config/config.json \ proxyurl

.github/workflows/build.yml runs go vet, go test, and go build on pushes and PRs.

On pushes to main/master, the workflow also builds and pushes a Docker image to ghcr.io/<owner>/proxyurl tagged with the branch name, the commit SHA, and latest when on the default branch. Set packages: write permissions on the repo if needed.