An idiomatic C++ client library for the Serverless VPC Access API, a service to API for managing VPC access connectors.
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/vpcaccess/quickstart/ directory, which should give you a taste of the Serverless VPC Access API C++ client library API.
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complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-14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 Serverless VPC Access API C++ client library, which manages VPC access connectors and is currently in General Availability (GA).\u003c/p\u003e\n"],["\u003cp\u003eThe latest release candidate is version 2.37.0-rc, with numerous previous versions available, dating back to version 2.11.0 for the VPC Access API, which is accessible through provided links.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003evpcaccess_v1::VpcAccessServiceClient\u003c/code\u003e is the primary class within the library, offering all Remote Procedure Calls (RPCs) as member functions, and it includes capabilities for automatic retries with exponential backoff for transient errors.\u003c/p\u003e\n"],["\u003cp\u003eThe library's error handling, default endpoint override, authentication credentials override, and environment variable configurations are described in additional linked resources.\u003c/p\u003e\n"],["\u003cp\u003eThe library does not follow Semantic Versioning.\u003c/p\u003e\n"]]],[],null,["Version 2.12.0keyboard_arrow_down\n\n- [2.42.0-rc (latest)](/cpp/docs/reference/vpcaccess/latest)\n- [2.41.0](/cpp/docs/reference/vpcaccess/2.41.0)\n- [2.40.0](/cpp/docs/reference/vpcaccess/2.40.0)\n- [2.39.0](/cpp/docs/reference/vpcaccess/2.39.0)\n- [2.38.0](/cpp/docs/reference/vpcaccess/2.38.0)\n- [2.37.0](/cpp/docs/reference/vpcaccess/2.37.0)\n- [2.36.0](/cpp/docs/reference/vpcaccess/2.36.0)\n- [2.35.0](/cpp/docs/reference/vpcaccess/2.35.0)\n- [2.34.0](/cpp/docs/reference/vpcaccess/2.34.0)\n- [2.33.0](/cpp/docs/reference/vpcaccess/2.33.0)\n- [2.32.0](/cpp/docs/reference/vpcaccess/2.32.0)\n- [2.31.0](/cpp/docs/reference/vpcaccess/2.31.0)\n- [2.30.0](/cpp/docs/reference/vpcaccess/2.30.0)\n- [2.29.0](/cpp/docs/reference/vpcaccess/2.29.0)\n- [2.28.0](/cpp/docs/reference/vpcaccess/2.28.0)\n- [2.27.0](/cpp/docs/reference/vpcaccess/2.27.0)\n- [2.26.0](/cpp/docs/reference/vpcaccess/2.26.0)\n- [2.25.1](/cpp/docs/reference/vpcaccess/2.25.1)\n- [2.24.0](/cpp/docs/reference/vpcaccess/2.24.0)\n- [2.23.0](/cpp/docs/reference/vpcaccess/2.23.0)\n- [2.22.1](/cpp/docs/reference/vpcaccess/2.22.1)\n- [2.21.0](/cpp/docs/reference/vpcaccess/2.21.0)\n- [2.20.0](/cpp/docs/reference/vpcaccess/2.20.0)\n- [2.19.0](/cpp/docs/reference/vpcaccess/2.19.0)\n- [2.18.0](/cpp/docs/reference/vpcaccess/2.18.0)\n- [2.17.0](/cpp/docs/reference/vpcaccess/2.17.0)\n- [2.16.0](/cpp/docs/reference/vpcaccess/2.16.0)\n- [2.15.1](/cpp/docs/reference/vpcaccess/2.15.1)\n- [2.14.0](/cpp/docs/reference/vpcaccess/2.14.0)\n- [2.13.0](/cpp/docs/reference/vpcaccess/2.13.0)\n- [2.12.0](/cpp/docs/reference/vpcaccess/2.12.0)\n- [2.11.0](/cpp/docs/reference/vpcaccess/2.11.0) \n\nServerless VPC Access API C++ Client Library\n============================================\n\nAn idiomatic C++ client library for the [Serverless VPC Access API](https://cloud.google.com/vpc/docs/serverless-vpc-access), a service to API for managing VPC access connectors.\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/vpcaccess/quickstart/` directory, which should give you a taste of the Serverless VPC Access API C++ client library API. \n\n #include \"google/cloud/vpcaccess/v1/vpc_access_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 vpcaccess = ::google::cloud::vpcaccess_v1;\n auto client = vpcaccess::VpcAccessServiceClient(\n vpcaccess::MakeVpcAccessServiceConnection());\n\n auto const parent =\n std::string(\"projects/\") + argv[1] + \"/locations/\" + argv[2];\n for (auto r : client.ListConnectors(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 [`vpcaccess_v1::VpcAccessServiceClient`](/cpp/docs/reference/vpcaccess/2.12.0/classgoogle_1_1cloud_1_1vpcaccess__v1_1_1VpcAccessServiceClient). All RPCs are exposed as member functions of this class. Other classes provide helpers, configuration parameters, and infrastructure to mock [`vpcaccess_v1::VpcAccessServiceClient`](/cpp/docs/reference/vpcaccess/2.12.0/classgoogle_1_1cloud_1_1vpcaccess__v1_1_1VpcAccessServiceClient) 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/vpcaccess/2.12.0/vpcaccess-override-endpoint) - describes how to override the default endpoint.\n- [How to Override the Authentication Credentials](/cpp/docs/reference/vpcaccess/2.12.0/vpcaccess-override-authentication) - describes how to change the authentication credentials used by the library.\n- [Environment Variables](/cpp/docs/reference/vpcaccess/2.12.0/vpcaccess-env) - describes environment variables that can configure the behavior of the library."]]