An idiomatic C++ client library for theCloud Monitoring API, a service to manage your Cloud Monitoring data and configurations. This library is used to interact with the Cloud Monitoring API directly. If you are looking to instrument your application for Cloud Monitoring, we recommend usingOpenTelemetryor a similar framework.
While this library isGA, please note Google Cloud C++ client libraries donotfollowSemantic Versioning.
Quickstart
The following shows the code that you'll run in thegoogle/cloud/monitoring/quickstart/directory, which should give you a taste of the Cloud Monitoring API C++ client library API.
#include "google/cloud/monitoring/v3/alert_policy_client.h"
#include "google/cloud/project.h"
#include <iostream>
int main(int argc, char* argv[]) try {
if (argc != 2) {
std::cerr << "Usage: " << argv[0] << " project-id\n";
return 1;
}
namespace monitoring = ::google::cloud::monitoring_v3;
auto client = monitoring::AlertPolicyServiceClient(
monitoring::MakeAlertPolicyServiceConnection());
auto const project = google::cloud::Project(argv[1]);
for (auto a : client.ListAlertPolicies(project.FullName())) {
if (!a) throw std::move(a).status();
std::cout << a->DebugString() << "\n";
}
return 0;
} catch (google::cloud::Status const& status) {
std::cerr << "google::cloud::Status thrown: " << status << "\n";
return 1;
}
Main classes
This library offers multiple*Clientclasses, which are listed below. Each one of these classes exposes all the RPCs for a gRPCserviceas member functions of the class. This library groups multiple gRPC services because they are part of the same product or are often used together. A typical example may be the administrative and data plane operations for a single product.
The library also has other classes that provide helpers, configuration parameters, and infrastructure to mock the*Clientclasses when testing your application.
The library automatically retries requests that fail with transient errors, and usesexponential backoffto backoff between retries. Application developers can override the default policies.
More Information
Error Handling- describes how the library reports errors.
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Hard to understand","hardToUnderstand","thumb-down"],["Incorrect information or sample code","incorrectInformationOrSampleCode","thumb-down"],["Missing the information/samples I need","missingTheInformationSamplesINeed","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-09-04 UTC."],[[["\u003cp\u003eThis page details the C++ client library for the Cloud Monitoring API, which is designed for managing Cloud Monitoring data and configurations directly.\u003c/p\u003e\n"],["\u003cp\u003eThe library provides multiple \u003ccode\u003e*Client\u003c/code\u003e classes, such as \u003ccode\u003eAlertPolicyServiceClient\u003c/code\u003e and \u003ccode\u003eMetricServiceClient\u003c/code\u003e, each offering member functions for gRPC service operations.\u003c/p\u003e\n"],["\u003cp\u003eThe latest version available in the documentation is 2.37.0-rc, though many versions going back to 2.11.0 are available for reference.\u003c/p\u003e\n"],["\u003cp\u003eThe library automatically manages retries for transient errors and uses exponential backoff, but developers can customize these policies as needed.\u003c/p\u003e\n"],["\u003cp\u003eThe Cloud Monitoring API C++ client libraries do not follow Semantic Versioning.\u003c/p\u003e\n"]]],[],null,["Version 2.11.0keyboard_arrow_down\n\n- [2.42.0-rc (latest)](/cpp/docs/reference/monitoring/latest)\n- [2.41.0](/cpp/docs/reference/monitoring/2.41.0)\n- [2.40.0](/cpp/docs/reference/monitoring/2.40.0)\n- [2.39.0](/cpp/docs/reference/monitoring/2.39.0)\n- [2.38.0](/cpp/docs/reference/monitoring/2.38.0)\n- [2.37.0](/cpp/docs/reference/monitoring/2.37.0)\n- [2.36.0](/cpp/docs/reference/monitoring/2.36.0)\n- [2.35.0](/cpp/docs/reference/monitoring/2.35.0)\n- [2.34.0](/cpp/docs/reference/monitoring/2.34.0)\n- [2.33.0](/cpp/docs/reference/monitoring/2.33.0)\n- [2.32.0](/cpp/docs/reference/monitoring/2.32.0)\n- [2.31.0](/cpp/docs/reference/monitoring/2.31.0)\n- [2.30.0](/cpp/docs/reference/monitoring/2.30.0)\n- [2.29.0](/cpp/docs/reference/monitoring/2.29.0)\n- [2.28.0](/cpp/docs/reference/monitoring/2.28.0)\n- [2.27.0](/cpp/docs/reference/monitoring/2.27.0)\n- [2.26.0](/cpp/docs/reference/monitoring/2.26.0)\n- [2.25.1](/cpp/docs/reference/monitoring/2.25.1)\n- [2.24.0](/cpp/docs/reference/monitoring/2.24.0)\n- [2.23.0](/cpp/docs/reference/monitoring/2.23.0)\n- [2.22.1](/cpp/docs/reference/monitoring/2.22.1)\n- [2.21.0](/cpp/docs/reference/monitoring/2.21.0)\n- [2.20.0](/cpp/docs/reference/monitoring/2.20.0)\n- [2.19.0](/cpp/docs/reference/monitoring/2.19.0)\n- [2.18.0](/cpp/docs/reference/monitoring/2.18.0)\n- [2.17.0](/cpp/docs/reference/monitoring/2.17.0)\n- [2.16.0](/cpp/docs/reference/monitoring/2.16.0)\n- [2.15.1](/cpp/docs/reference/monitoring/2.15.1)\n- [2.14.0](/cpp/docs/reference/monitoring/2.14.0)\n- [2.13.0](/cpp/docs/reference/monitoring/2.13.0)\n- [2.12.0](/cpp/docs/reference/monitoring/2.12.0)\n- [2.11.0](/cpp/docs/reference/monitoring/2.11.0) \n\nCloud Monitoring API C++ Client Library\n=======================================\n\nAn idiomatic C++ client library for the [Cloud Monitoring API](https://cloud.google.com/monitoring), a service to manage your Cloud Monitoring data and configurations. This library is used to interact with the Cloud Monitoring API directly. If you are looking to instrument your application for Cloud Monitoring, we recommend using [OpenTelemetry](https://opentelemetry.io) or a similar framework.\n\nWhile this library is **GA** , please note Google Cloud C++ client libraries do **not** follow [Semantic Versioning](https://semver.org/).\n\n### Quickstart\n\nThe following shows the code that you'll run in the `google/cloud/monitoring/quickstart/` directory, which should give you a taste of the Cloud Monitoring API C++ client library API. \n\n #include \"google/cloud/monitoring/v3/alert_policy_client.h\"\n #include \"google/cloud/project.h\"\n #include \u003ciostream\u003e\n\n int main(int argc, char* argv[]) try {\n if (argc != 2) {\n std::cerr \u003c\u003c \"Usage: \" \u003c\u003c argv[0] \u003c\u003c \" project-id\\n\";\n return 1;\n }\n\n namespace monitoring = ::google::cloud::monitoring_v3;\n auto client = monitoring::AlertPolicyServiceClient(\n monitoring::MakeAlertPolicyServiceConnection());\n\n auto const project = google::cloud::Project(argv[1]);\n for (auto a : client.ListAlertPolicies(project.FullName())) {\n if (!a) throw std::move(a).status();\n std::cout \u003c\u003c a-\u003eDebugString() \u003c\u003c \"\\n\";\n }\n\n return 0;\n } catch (google::cloud::Status const& status) {\n std::cerr \u003c\u003c \"google::cloud::Status thrown: \" \u003c\u003c status \u003c\u003c \"\\n\";\n return 1;\n }\n\n### Main classes\n\nThis library offers multiple `*Client` classes, which are listed below. Each one of these classes exposes all the RPCs for a gRPC `service` as member functions of the class. This library groups multiple gRPC services because they are part of the same product or are often used together. A typical example may be the administrative and data plane operations for a single product.\n\nThe library also has other classes that provide helpers, configuration parameters, and infrastructure to mock the `*Client` classes when testing your application.\n\n- [`monitoring_dashboard_v1::DashboardsServiceClient`](/cpp/docs/reference/monitoring/2.11.0/classgoogle_1_1cloud_1_1monitoring__dashboard__v1_1_1DashboardsServiceClient)\n- [`monitoring_metricsscope_v1::MetricsScopesClient`](/cpp/docs/reference/monitoring/2.11.0/classgoogle_1_1cloud_1_1monitoring__metricsscope__v1_1_1MetricsScopesClient)\n- [`monitoring_v3::AlertPolicyServiceClient`](/cpp/docs/reference/monitoring/2.11.0/classgoogle_1_1cloud_1_1monitoring__v3_1_1AlertPolicyServiceClient)\n- [`monitoring_v3::GroupServiceClient`](/cpp/docs/reference/monitoring/2.11.0/classgoogle_1_1cloud_1_1monitoring__v3_1_1GroupServiceClient)\n- [`monitoring_v3::MetricServiceClient`](/cpp/docs/reference/monitoring/2.11.0/classgoogle_1_1cloud_1_1monitoring__v3_1_1MetricServiceClient)\n- [`monitoring_v3::NotificationChannelServiceClient`](/cpp/docs/reference/monitoring/2.11.0/classgoogle_1_1cloud_1_1monitoring__v3_1_1NotificationChannelServiceClient)\n- [`monitoring_v3::QueryServiceClient`](/cpp/docs/reference/monitoring/2.11.0/classgoogle_1_1cloud_1_1monitoring__v3_1_1QueryServiceClient)\n- [`monitoring_v3::ServiceMonitoringServiceClient`](/cpp/docs/reference/monitoring/2.11.0/classgoogle_1_1cloud_1_1monitoring__v3_1_1ServiceMonitoringServiceClient)\n- [`monitoring_v3::UptimeCheckServiceClient`](/cpp/docs/reference/monitoring/2.11.0/classgoogle_1_1cloud_1_1monitoring__v3_1_1UptimeCheckServiceClient)\n\n### Retry, Backoff, and Idempotency Policies.\n\nThe library automatically retries requests that fail with transient errors, and uses [exponential backoff](https://en.wikipedia.org/wiki/Exponential_backoff) to backoff between retries. Application developers can override the default policies.\n\n### More Information\n\n- [Error Handling](https://cloud.google.com/cpp/docs/reference/common/latest/common-error-handling.html) - describes how the library reports errors.\n- [How to Override the Default Endpoint](/cpp/docs/reference/monitoring/2.11.0/monitoring-override-endpoint) - describes how to override the default endpoint.\n- [How to Override the Authentication Credentials](/cpp/docs/reference/monitoring/2.11.0/monitoring-override-authentication) - describes how to change the authentication credentials used by the library.\n- [Environment Variables](/cpp/docs/reference/monitoring/2.11.0/monitoring-env) - describes environment variables that can configure the behavior of the library."]]