An idiomatic C++ client library for Cloud Logging API, a service that writes log entries and manages your Cloud Logging configuration.
While this library is GA, please note Google Cloud C++ client libraries do not follow Semantic Versioning.
Quickstart
The following shows the code that you'll run in the google/cloud/logging/quickstart/ directory, which should give you a taste of the Cloud Logging API C++ client library API.
#include "google/cloud/logging/v2/logging_service_v2_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 logging = ::google::cloud::logging_v2;
auto client = logging::LoggingServiceV2Client(
logging::MakeLoggingServiceV2Connection());
auto const project = google::cloud::Project(argv[1]);
for (auto l : client.ListLogs(project.FullName())) {
if (!l) throw std::move(l).status();
std::cout << *l << "\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 logging_v2::LoggingServiceV2Client. All RPCs are exposed as member functions of this class. Other classes provide helpers, configuration parameters, and infrastructure to mock logging_v2::LoggingServiceV2Client 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.
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-14 UTC."],[[["\u003cp\u003eThis webpage provides documentation for the Cloud Logging API C++ Client Library, which is a tool for writing log entries and managing Cloud Logging configurations.\u003c/p\u003e\n"],["\u003cp\u003eThe library is in General Availability (GA) but does not follow Semantic Versioning, as indicated in the documentation.\u003c/p\u003e\n"],["\u003cp\u003eThe latest version of the documentation is 2.37.0-rc, with a range of other previous version documentation provided from 2.36.0 down to 2.11.0.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003elogging_v2::LoggingServiceV2Client\u003c/code\u003e class is the primary class in this library, and it contains all Remote Procedure Calls (RPCs) as member functions.\u003c/p\u003e\n"],["\u003cp\u003eThe library has automatic retry functionality with exponential backoff for requests that encounter temporary errors, but it can be overridden.\u003c/p\u003e\n"]]],[],null,["Version 2.11.0keyboard_arrow_down\n\n- [2.42.0-rc (latest)](/cpp/docs/reference/logging/latest)\n- [2.41.0](/cpp/docs/reference/logging/2.41.0)\n- [2.40.0](/cpp/docs/reference/logging/2.40.0)\n- [2.39.0](/cpp/docs/reference/logging/2.39.0)\n- [2.38.0](/cpp/docs/reference/logging/2.38.0)\n- [2.37.0](/cpp/docs/reference/logging/2.37.0)\n- [2.36.0](/cpp/docs/reference/logging/2.36.0)\n- [2.35.0](/cpp/docs/reference/logging/2.35.0)\n- [2.34.0](/cpp/docs/reference/logging/2.34.0)\n- [2.33.0](/cpp/docs/reference/logging/2.33.0)\n- [2.32.0](/cpp/docs/reference/logging/2.32.0)\n- [2.31.0](/cpp/docs/reference/logging/2.31.0)\n- [2.30.0](/cpp/docs/reference/logging/2.30.0)\n- [2.29.0](/cpp/docs/reference/logging/2.29.0)\n- [2.28.0](/cpp/docs/reference/logging/2.28.0)\n- [2.27.0](/cpp/docs/reference/logging/2.27.0)\n- [2.26.0](/cpp/docs/reference/logging/2.26.0)\n- [2.25.1](/cpp/docs/reference/logging/2.25.1)\n- [2.24.0](/cpp/docs/reference/logging/2.24.0)\n- [2.23.0](/cpp/docs/reference/logging/2.23.0)\n- [2.22.1](/cpp/docs/reference/logging/2.22.1)\n- [2.21.0](/cpp/docs/reference/logging/2.21.0)\n- [2.20.0](/cpp/docs/reference/logging/2.20.0)\n- [2.19.0](/cpp/docs/reference/logging/2.19.0)\n- [2.18.0](/cpp/docs/reference/logging/2.18.0)\n- [2.17.0](/cpp/docs/reference/logging/2.17.0)\n- [2.16.0](/cpp/docs/reference/logging/2.16.0)\n- [2.15.1](/cpp/docs/reference/logging/2.15.1)\n- [2.14.0](/cpp/docs/reference/logging/2.14.0)\n- [2.13.0](/cpp/docs/reference/logging/2.13.0)\n- [2.12.0](/cpp/docs/reference/logging/2.12.0)\n- [2.11.0](/cpp/docs/reference/logging/2.11.0) \n\nCloud Logging API C++ Client Library\n====================================\n\nAn idiomatic C++ client library for [Cloud Logging API](https://cloud.google.com/logging/), a service that writes log entries and manages your Cloud Logging configuration.\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/logging/quickstart/` directory, which should give you a taste of the Cloud Logging API C++ client library API. \n\n #include \"google/cloud/logging/v2/logging_service_v2_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 logging = ::google::cloud::logging_v2;\n auto client = logging::LoggingServiceV2Client(\n logging::MakeLoggingServiceV2Connection());\n auto const project = google::cloud::Project(argv[1]);\n for (auto l : client.ListLogs(project.FullName())) {\n if (!l) throw std::move(l).status();\n std::cout \u003c\u003c *l \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\nThe main class in this library is [`logging_v2::LoggingServiceV2Client`](/cpp/docs/reference/logging/2.11.0/classgoogle_1_1cloud_1_1logging__v2_1_1LoggingServiceV2Client). All RPCs are exposed as member functions of this class. Other classes provide helpers, configuration parameters, and infrastructure to mock [`logging_v2::LoggingServiceV2Client`](/cpp/docs/reference/logging/2.11.0/classgoogle_1_1cloud_1_1logging__v2_1_1LoggingServiceV2Client) when testing your application.\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/logging/2.11.0/logging-override-endpoint) - describes how to override the default endpoint.\n- [How to Override the Authentication Credentials](/cpp/docs/reference/logging/2.11.0/logging-override-authentication) - describes how to change the authentication credentials used by the library.\n- [Environment Variables](/cpp/docs/reference/logging/2.11.0/logging-env) - describes environment variables that can configure the behavior of the library."]]