An idiomatic C++ client library for the Connectors API, a service that enables users to create and manage connections to Google Cloud services and third-party business applications.
While this library is GA, please note that the Google Cloud C++ client libraries do not follow Semantic Versioning.
Quickstart
The following shows the code that you'll run in the google/cloud/connectors/quickstart/ directory, which should give you a taste of the Connectors API C++ client library API.
The main class in this library is connectors_v1::ConnectorsClient. All RPCs are exposed as member functions of this class. Other classes provide helpers, configuration parameters, and infrastructure to mock connectors_v1::ConnectorsClient 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complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-14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 details the C++ client library for the Connectors API, which facilitates the management of connections to both Google Cloud services and third-party applications.\u003c/p\u003e\n"],["\u003cp\u003eThe latest release candidate version is 2.37.0-rc, while the current version featured in the documentation is 2.12.0 and there is a list of previous versions available.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003econnectors_v1::ConnectorsClient\u003c/code\u003e class is the core component, providing access to all Remote Procedure Calls (RPCs) and it can be used by following the quickstart code within the documentation.\u003c/p\u003e\n"],["\u003cp\u003eThe library includes automatic retries for transient errors, utilizes exponential backoff, and offers customizable retry policies and it is a Generally Available (GA) product.\u003c/p\u003e\n"],["\u003cp\u003eThe provided documentation offers resources on topics such as error handling, endpoint and authentication credential overriding, and environment variable configurations for the library.\u003c/p\u003e\n"]]],[],null,["Version 2.12.0keyboard_arrow_down\n\n- [2.42.0-rc (latest)](/cpp/docs/reference/connectors/latest)\n- [2.41.0](/cpp/docs/reference/connectors/2.41.0)\n- [2.40.0](/cpp/docs/reference/connectors/2.40.0)\n- [2.39.0](/cpp/docs/reference/connectors/2.39.0)\n- [2.38.0](/cpp/docs/reference/connectors/2.38.0)\n- [2.37.0](/cpp/docs/reference/connectors/2.37.0)\n- [2.36.0](/cpp/docs/reference/connectors/2.36.0)\n- [2.35.0](/cpp/docs/reference/connectors/2.35.0)\n- [2.34.0](/cpp/docs/reference/connectors/2.34.0)\n- [2.33.0](/cpp/docs/reference/connectors/2.33.0)\n- [2.32.0](/cpp/docs/reference/connectors/2.32.0)\n- [2.31.0](/cpp/docs/reference/connectors/2.31.0)\n- [2.30.0](/cpp/docs/reference/connectors/2.30.0)\n- [2.29.0](/cpp/docs/reference/connectors/2.29.0)\n- [2.28.0](/cpp/docs/reference/connectors/2.28.0)\n- [2.27.0](/cpp/docs/reference/connectors/2.27.0)\n- [2.26.0](/cpp/docs/reference/connectors/2.26.0)\n- [2.25.1](/cpp/docs/reference/connectors/2.25.1)\n- [2.24.0](/cpp/docs/reference/connectors/2.24.0)\n- [2.23.0](/cpp/docs/reference/connectors/2.23.0)\n- [2.22.1](/cpp/docs/reference/connectors/2.22.1)\n- [2.21.0](/cpp/docs/reference/connectors/2.21.0)\n- [2.20.0](/cpp/docs/reference/connectors/2.20.0)\n- [2.19.0](/cpp/docs/reference/connectors/2.19.0)\n- [2.18.0](/cpp/docs/reference/connectors/2.18.0)\n- [2.17.0](/cpp/docs/reference/connectors/2.17.0)\n- [2.16.0](/cpp/docs/reference/connectors/2.16.0)\n- [2.15.1](/cpp/docs/reference/connectors/2.15.1)\n- [2.14.0](/cpp/docs/reference/connectors/2.14.0)\n- [2.13.0](/cpp/docs/reference/connectors/2.13.0)\n- [2.12.0](/cpp/docs/reference/connectors/2.12.0)\n- [2.11.0](/cpp/docs/reference/connectors/2.11.0) \n\nConnectors API C++ Client Library\n=================================\n\nAn idiomatic C++ client library for the [Connectors API](https://cloud.google.com/apigee/docs/api-platform/connectors/about-connectors), a service that enables users to create and manage connections to Google Cloud services and third-party business applications.\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/connectors/quickstart/` directory, which should give you a taste of the Connectors API C++ client library API. \n\n #include \"google/cloud/connectors/v1/connectors_client.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 namespace connectors = ::google::cloud::connectors_v1;\n auto client =\n connectors::ConnectorsClient(connectors::MakeConnectorsConnection());\n\n auto const parent =\n std::string{\"projects/\"} + argv[1] + \"/locations/\" + argv[2];\n for (auto r : client.ListConnections(parent)) {\n if (!r) throw std::move(r).status();\n std::cout \u003c\u003c r-\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 [`connectors_v1::ConnectorsClient`](/cpp/docs/reference/connectors/2.12.0/classgoogle_1_1cloud_1_1connectors__v1_1_1ConnectorsClient). All RPCs are exposed as member functions of this class. Other classes provide helpers, configuration parameters, and infrastructure to mock [`connectors_v1::ConnectorsClient`](/cpp/docs/reference/connectors/2.12.0/classgoogle_1_1cloud_1_1connectors__v1_1_1ConnectorsClient) 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/connectors/2.12.0/connectors-override-endpoint) - describes how to override the default endpoint.\n- [How to Override the Authentication Credentials](/cpp/docs/reference/connectors/2.12.0/connectors-override-authentication) - describes how to change the authentication credentials used by the library.\n- [Environment Variables](/cpp/docs/reference/connectors/2.12.0/connectors-env) - describes environment variables that can configure the behavior of the library."]]