echo

A very lightweight web service that provides a few basic endpoints.

Endpoints

API is available at https://api.blupig.net/echo

Available endpoints:

• GET /cache: cacheable content with increased latency (help debugging caching layer)
• GET /cpu: performs CPU-intensive operation on server-side (requires API token)
• GET /exit: causes server process to exit (requires API token)
• GET /headers: returns request headers in JSON
• GET /health: returns application health info
• GET /ip: returns client IP (uses X-Forwarded-For if present, otherwise returns client IP)

Deploy

Pre-built binaries are available as Docker images at blupig/echo.

The server can be configured with environment variables:

• PORT: the port server listens on (default: 8000)
• API_TOKEN: API token for /cpu and /exit endpoints, if not set or set to empty string, all endpoints require API token are disabled.