An idiomatic C++ client library for theApp Hub API, a service to manage App Hub resources.
While this library isGA, please note that the Google Cloud C++ client libraries donotfollowSemantic Versioning.
Quickstart
The following shows the code that you'll run in thegoogle/cloud/apphub/quickstart/directory, which should give you a taste of the App Hub API C++ client library API.
The main class in this library isapphub_v1::AppHubClient. All RPCs are exposed as member functions of this class. Other classes provide helpers, configuration parameters, and infrastructure to mockapphub_v1::AppHubClientwhen testing your application.
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 webpage details the C++ client library for the Google Cloud App Hub API, which is currently in General Availability (GA).\u003c/p\u003e\n"],["\u003cp\u003eThe library's latest release candidate is version 2.37.0-rc, with version 2.36.0 being the current main version and also many other previous version being listed.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eapphub_v1::AppHubClient\u003c/code\u003e class is the primary class in this library, and all remote procedure calls (RPCs) are accessible as member functions of it.\u003c/p\u003e\n"],["\u003cp\u003eThis C++ library does not follow Semantic Versioning standards, as detailed on the page.\u003c/p\u003e\n"],["\u003cp\u003eThe page also provides guidance on error handling, endpoint overrides, credential changes, and policy customizations, as well as detailing the behavior settings through environment variables.\u003c/p\u003e\n"]]],[],null,["Version 2.36.0keyboard_arrow_down\n\n- [2.42.0-rc (latest)](/cpp/docs/reference/apphub/latest)\n- [2.41.0](/cpp/docs/reference/apphub/2.41.0)\n- [2.40.0](/cpp/docs/reference/apphub/2.40.0)\n- [2.39.0](/cpp/docs/reference/apphub/2.39.0)\n- [2.38.0](/cpp/docs/reference/apphub/2.38.0)\n- [2.37.0](/cpp/docs/reference/apphub/2.37.0)\n- [2.36.0](/cpp/docs/reference/apphub/2.36.0)\n- [2.35.0](/cpp/docs/reference/apphub/2.35.0)\n- [2.34.0](/cpp/docs/reference/apphub/2.34.0)\n- [2.33.0](/cpp/docs/reference/apphub/2.33.0)\n- [2.32.0](/cpp/docs/reference/apphub/2.32.0)\n- [2.31.0](/cpp/docs/reference/apphub/2.31.0)\n- [2.30.0](/cpp/docs/reference/apphub/2.30.0)\n- [2.29.0](/cpp/docs/reference/apphub/2.29.0)\n- [2.28.0](/cpp/docs/reference/apphub/2.28.0)\n- [2.27.0](/cpp/docs/reference/apphub/2.27.0)\n- [2.26.0](/cpp/docs/reference/apphub/2.26.0)\n- [2.25.1](/cpp/docs/reference/apphub/2.25.1)\n- [2.24.0](/cpp/docs/reference/apphub/2.24.0)\n- [2.23.0](/cpp/docs/reference/apphub/2.23.0) \n\nApp Hub API C++ Client Library\n==============================\n\nAn idiomatic C++ client library for the [App Hub API](https://cloud.google.com/app-hub), a service to manage App Hub resources.\n\nWhile this library is **GA** , please note that the 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/apphub/quickstart/` directory, which should give you a taste of the App Hub API C++ client library API. \n\n #include \"google/cloud/apphub/v1/app_hub_client.h\"\n #include \"google/cloud/location.h\"\n #include \u003ciostream\u003e\n\n int main(int argc, char* argv[]) try {\n if (argc != 3) {\n std::cerr \u003c\u003c \"Usage: \" \u003c\u003c argv[0] \u003c\u003c \" project-id location-id\\n\";\n return 1;\n }\n\n auto const location = google::cloud::Location(argv[1], argv[2]);\n\n namespace apphub = ::google::cloud::apphub_v1;\n auto client = apphub::AppHubClient(apphub::MakeAppHubConnection());\n\n for (auto a : client.ListApplications(location.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\nThe main class in this library is [`apphub_v1::AppHubClient`](/cpp/docs/reference/apphub/2.36.0/classgoogle_1_1cloud_1_1apphub__v1_1_1AppHubClient). All RPCs are exposed as member functions of this class. Other classes provide helpers, configuration parameters, and infrastructure to mock [`apphub_v1::AppHubClient`](/cpp/docs/reference/apphub/2.36.0/classgoogle_1_1cloud_1_1apphub__v1_1_1AppHubClient) when testing your application.\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/apphub/2.36.0/apphub-override-endpoint) - describes how to override the default endpoint.\n- [How to Override the Authentication Credentials](/cpp/docs/reference/apphub/2.36.0/apphub-override-authentication) - describes how to change the authentication credentials used by the library.\n- [Override Retry, Backoff, and Idempotency Policies](/cpp/docs/reference/apphub/2.36.0/apphub-override-retry) - describes how to change the default retry policies.\n- [Environment Variables](/cpp/docs/reference/apphub/2.36.0/apphub-env) - describes environment variables that can configure the behavior of the library."]]