Recommender C++ Client Library

An idiomatic C++ client library for Recommender , a service on Google Cloud that provides usage recommendations and insights for Cloud products and services.

While this library is GA, please note Google Cloud C++ client libraries do notfollow Semantic Versioning .

Quickstart

The following shows the code that you'll run in the google/cloud/recommender/quickstart/ directory, which should give you a taste of the Recommender C++ client library API.

 #include "google/cloud/recommender/v1/recommender_client.h"
#include <iostream>

int main(int argc, char* argv[]) try {
  if (argc != 3) {
    std::cerr << "Usage: " << argv[0] << " project-id location-id\n";
    return 1;
  }

  namespace recommender = ::google::cloud::recommender_v1;
  auto client =
      recommender::RecommenderClient(recommender::MakeRecommenderConnection());
  // For additional recommenders see:
  //     https://cloud.google.com/recommender/docs/recommenders#recommenders
  auto const parent =
      std::string("projects/") + argv[1] + "/locations/" + argv[2] +
      "/recommenders/google.compute.instance.MachineTypeRecommender";
  for (auto r : client.ListRecommendations(parent)) {
    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;
} 

Main classes

The main class in this library is recommender_v1::RecommenderClient . All RPCs are exposed as member functions of this class. Other classes provide helpers, configuration parameters, and infrastructure to mock recommender_v1::RecommenderClient when testing your application.

Retry, Backoff, and Idempotency Policies.

The library automatically retries requests that fail with transient errors, and uses exponential backoff to backoff between retries. Application developers can override the default policies.

More Information

• Error Handling - describes how the library reports errors.
• How to Override the Default Endpoint - describes how to override the default endpoint.
• How to Override the Authentication Credentials - describes how to change the authentication credentials used by the library.
• Environment Variables - describes environment variables that can configure the behavior of the library.