feat: complete API-driven projects with infrastructure and business acceptance

transport/native/server.go

@@ -481,7 +481,17 @@ func (s *Server) serveConnection(baseCtx context.Context, state *connection) {
 			disconnectWatch = newClientDisconnectWatch(reader, state.conn, cancel)
 		}
 		handler.ServeHTTP(writer, request)
-		bodyErr := request.Body.Close()
+		var bodyErr error
+		if body, ok := request.Body.(*requestBody); ok && !body.done && body.err == nil && writer.status == http.StatusRequestEntityTooLarge {
+			// An application can reject size from the headers alone when its
+			// body limit is below the transport limit. Waiting to
+			// drain a slow or absent body would withhold the rejection response.
+			// Abandon it and close; unread bytes can never become a next request.
+			body.closed = true
+			closeAfter = true
+		} else {
+			bodyErr = request.Body.Close()
+		}
 		if disconnectWatch != nil {
 			disconnectWatch.stop()
 		}