grpc pubsub c++ example

gistfile1.cc

#include <iostream>

#include <grpc++/grpc++.h>
#include <grpc++/security/credentials.h>

#include "pubsub.grpc.pb.h"

int main(int argc, char** argv) {
  auto channel = grpc::CreateChannel(“pubsub.googleapis.com”, grpc::GoogleDefaultCredentials());
  auto stub = google::pubsub::v1::Publisher::NewStub(channel);
  google::pubsub::v1::ListTopicsRequest request;
  google::pubsub::v1::ListTopicsResponse response;
  grpc::ClientContext context;
  request.set_page_size(10);
  request.set_project("project_name");
  auto status = stub->ListTopics(&context, request, &response);
  if (status.ok()) {
    for (const auto& topic : response.topics()) {
      std::cout << topic.name() << std::endl;
    }
  } else {
    std::cout << “rpc failed.” << std::endl;
  }
  return 0;
}