print

print writes POST request bodies to stderr and returns 204 No Content. It is intended for debugging webhooks and callbacks.

server:
  http:
    middlewares:
      debug_body:
        print:
          text: "\n--- end body ---"

Behavior:

• GET requests continue to the next middleware.
• POST bodies are printed to stderr and the chain stops with 204.
• Other methods return 405 Method Not Allowed.