teste

                    }

                }

                // MediaDB starts an uncached preview in the background and answers 202.

                // Browsers do not retry a failed <img> request, so wait briefly for that

                // preview here. This route is offloaded from the listener event loop; cap

                // the wait so an unhealthy MediaDB cannot occupy a worker indefinitely.

                for (int retry = 0; dataResPtr && dataResPtr->getStatusCode() == 202

                                    && retry < 5; ++retry) {

                    // GetStream left the 202 JSON body unread. Close that connection

                    // instead of returning a mid-response client to the pool.

                    streamClient.discard();

                    dataResPtr.reset();

                    std::this_thread::sleep_for(std::chrono::seconds(1));

                    try {

                        streamClient = _mdbStreamPool->acquire();

                        dataResPtr = std::make_unique<libhttppp::HttpResponse>(

                            streamClient->GetStream(dataReq));

                    } catch (const std::exception &e) {

                        std::cerr << "media: pending preview retry failed: " << e.what() << std::endl;

                        streamClient.discard();

                        break;

                    } catch (...) {

                        std::cerr << "media: pending preview retry failed: unknown error" << std::endl;

                        streamClient.discard();

                        break;

                    }

                }

                if (!dataResPtr) {

                    libhttppp::HttpResponse curres;

                    curres.setState(HTTP502);