README.md

Cloud Functions API C++ Client Library

This directory contains an idiomatic C++ client library for the Cloud Functions API, a lightweight compute solution for developers to create single-purpose, stand-alone functions that respond to Cloud events without the need to manage a server or runtime environment.

While this library is GA, please note that the Google Cloud C++ client libraries do not follow Semantic Versioning.

Quickstart

The quickstart/ directory contains a minimal environment to get started using this client library in a larger project. The following "Hello World" program is used in this quickstart, and should give you a taste of this library.

For detailed instructions on how to build and install this library, see the top-level README.

#include "google/cloud/functions/cloud_functions_client.h"
#include <iostream>

int main(int argc, char* argv[]) try {
  if (argc != 2) {
    std::cerr << "Usage: " << argv[0] << " project-id\n";
    return 1;
  }

  namespace functions = ::google::cloud::functions;
  auto client = functions::CloudFunctionsServiceClient(
      functions::MakeCloudFunctionsServiceConnection());

  auto project_id = std::string(argv[1]);
  auto request = google::cloud::functions::v1::ListFunctionsRequest{};
  request.set_parent("projects/" + project_id + "/locations/-");

  for (auto r : client.ListFunctions(std::move(request))) {
    if (!r) throw std::move(r).status();
    std::cout << r->DebugString() << "\n";
  }

  return 0;
} catch (google::cloud::Status const& status) {
  std::cerr << "google::cloud::Status thrown: " << status << "\n";
  return 1;
}

More Information

• Official documentation about the Cloud Functions API service
• Reference doxygen documentation for each release of this client library
• Detailed header comments in our public .h files