Revision control
++ // Copyright (C) 2024 The Qt Company Ltd.
++ // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
++
++ #include "exampleservice.grpc.pb.h"
++
++ #include <grpc++/grpc++.h>
++
++ #include <array>
++ #include <iostream>
++
++ using namespace qtgrpc::examples;
++
++ // Logic and data behind the server's behavior.
++ class ExampleServiceImpl final : public ExampleService::Service
++ {
++ inline static std::array<std::string, 10> answers = {
++ "Yes", "Yep", "Most\nlikely", "It is\ncertain", "No",
++ "Nope", "Try later", "Are you\nsure?", "Maybe", "Very\ndoubtful"
++ };
++
++ std::string getRandomAnswer()
++ {
++ return answers.at(rand() % answers.size());
++ }
++ //! [answerMethod]
++ grpc::Status answerMethod(grpc::ServerContext *, const AnswerRequest *request,
++ AnswerResponse *response) override
++ {
++ if (request->question().empty()) {
++ std::cerr << "Question is empty" << std::endl;
++ return grpc::Status(grpc::StatusCode::INVALID_ARGUMENT, "Question is empty");
++ }
++ std::cout << "Received question: " << request->question() << std::endl;
++
++ response->set_message(getRandomAnswer());
++
++ return grpc::Status();
++ };
++ //! [answerMethod]
++ };
++
++ int main(int argc, char *argv[])
++ {
++ ExampleServiceImpl service;
++
++ grpc::ServerBuilder builder;
++ builder.AddListeningPort("127.0.0.1:50051", grpc::InsecureServerCredentials());
++ builder.RegisterService(&service);
++
++ std::unique_ptr<grpc::Server> server(builder.BuildAndStart());
++ if (!server) {
++ std::cout << "Creating server failed." << std::endl;
++ return -1;
++ }
++
++ std::cout << "Server listening on port 50051" << std::endl;
++ server->Wait();
++
++ return 0;
++ }