An idiomatic C++ client library for theAccess Context Manager API, a service for setting attribute based access control on requests to GCP services.
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/accesscontextmanager/quickstart/directory, which should give you a taste of the Access Context Manager API C++ client library API.
#include "google/cloud/accesscontextmanager/v1/access_context_manager_client.h"
#include <iostream>
int main(int argc, char* argv[]) try {
if (argc != 2) {
std::cerr << "Usage: " << argv[0] << " policy-id\n";
return 1;
}
namespace accesscontextmanager = ::google::cloud::accesscontextmanager_v1;
auto client = accesscontextmanager::AccessContextManagerClient(
accesscontextmanager::MakeAccessContextManagerConnection());
auto const parent = std::string("accessPolicies/") + argv[1];
for (auto r : client.ListAccessLevels(parent)) {
if (!r) throw std::move(r).status();
std::cout << r->DebugString() << "\n";
}
return 0;
} catch (google::cloud::Status const& status) {
std::cerr << "google::cloud::Status thrown: " << status << "\n";
return 1;
}
[[["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 provides documentation for the Access Context Manager API C++ client library, which allows you to manage attribute-based access control for requests to GCP services.\u003c/p\u003e\n"],["\u003cp\u003eThe latest release candidate version is 2.37.0-rc, and the page lists historical versions of the library ranging from 2.11.0 to 2.36.0 with 2.24.0 being the current base version of the content.\u003c/p\u003e\n"],["\u003cp\u003eThe primary class within this library is \u003ccode\u003eaccesscontextmanager_v1::AccessContextManagerClient\u003c/code\u003e, which contains member functions for all Remote Procedure Calls (RPCs) and can be mocked in testing.\u003c/p\u003e\n"],["\u003cp\u003eThis library is in General Availability (GA) but does not adhere to Semantic Versioning, and it offers customization of error handling, endpoints, authentication credentials, retry policies, and behavior through environment variables.\u003c/p\u003e\n"],["\u003cp\u003eThe provided quickstart code demonstrates how to utilize the client library to list access levels associated with a specific access policy ID.\u003c/p\u003e\n"]]],[],null,["Version 2.24.0keyboard_arrow_down\n\n- [2.42.0-rc (latest)](/cpp/docs/reference/accesscontextmanager/latest)\n- [2.41.0](/cpp/docs/reference/accesscontextmanager/2.41.0)\n- [2.40.0](/cpp/docs/reference/accesscontextmanager/2.40.0)\n- [2.39.0](/cpp/docs/reference/accesscontextmanager/2.39.0)\n- [2.38.0](/cpp/docs/reference/accesscontextmanager/2.38.0)\n- [2.37.0](/cpp/docs/reference/accesscontextmanager/2.37.0)\n- [2.36.0](/cpp/docs/reference/accesscontextmanager/2.36.0)\n- [2.35.0](/cpp/docs/reference/accesscontextmanager/2.35.0)\n- [2.34.0](/cpp/docs/reference/accesscontextmanager/2.34.0)\n- [2.33.0](/cpp/docs/reference/accesscontextmanager/2.33.0)\n- [2.32.0](/cpp/docs/reference/accesscontextmanager/2.32.0)\n- [2.31.0](/cpp/docs/reference/accesscontextmanager/2.31.0)\n- [2.30.0](/cpp/docs/reference/accesscontextmanager/2.30.0)\n- [2.29.0](/cpp/docs/reference/accesscontextmanager/2.29.0)\n- [2.28.0](/cpp/docs/reference/accesscontextmanager/2.28.0)\n- [2.27.0](/cpp/docs/reference/accesscontextmanager/2.27.0)\n- [2.26.0](/cpp/docs/reference/accesscontextmanager/2.26.0)\n- [2.25.1](/cpp/docs/reference/accesscontextmanager/2.25.1)\n- [2.24.0](/cpp/docs/reference/accesscontextmanager/2.24.0)\n- [2.23.0](/cpp/docs/reference/accesscontextmanager/2.23.0)\n- [2.22.1](/cpp/docs/reference/accesscontextmanager/2.22.1)\n- [2.21.0](/cpp/docs/reference/accesscontextmanager/2.21.0)\n- [2.20.0](/cpp/docs/reference/accesscontextmanager/2.20.0)\n- [2.19.0](/cpp/docs/reference/accesscontextmanager/2.19.0)\n- [2.18.0](/cpp/docs/reference/accesscontextmanager/2.18.0)\n- [2.17.0](/cpp/docs/reference/accesscontextmanager/2.17.0)\n- [2.16.0](/cpp/docs/reference/accesscontextmanager/2.16.0)\n- [2.15.1](/cpp/docs/reference/accesscontextmanager/2.15.1)\n- [2.14.0](/cpp/docs/reference/accesscontextmanager/2.14.0)\n- [2.13.0](/cpp/docs/reference/accesscontextmanager/2.13.0)\n- [2.12.0](/cpp/docs/reference/accesscontextmanager/2.12.0)\n- [2.11.0](/cpp/docs/reference/accesscontextmanager/2.11.0) \n\nAccess Context Manager API C++ Client Library\n=============================================\n\nAn idiomatic C++ client library for the [Access Context Manager API](https://cloud.google.com/access-context-manager), a service for setting attribute based access control on requests to GCP services.\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/accesscontextmanager/quickstart/` directory, which should give you a taste of the Access Context Manager API C++ client library API. \n\n #include \"google/cloud/accesscontextmanager/v1/access_context_manager_client.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 \" policy-id\\n\";\n return 1;\n }\n\n namespace accesscontextmanager = ::google::cloud::accesscontextmanager_v1;\n auto client = accesscontextmanager::AccessContextManagerClient(\n accesscontextmanager::MakeAccessContextManagerConnection());\n\n auto const parent = std::string(\"accessPolicies/\") + argv[1];\n for (auto r : client.ListAccessLevels(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 [`accesscontextmanager_v1::AccessContextManagerClient`](/cpp/docs/reference/accesscontextmanager/2.24.0/classgoogle_1_1cloud_1_1accesscontextmanager__v1_1_1AccessContextManagerClient). All RPCs are exposed as member functions of this class. Other classes provide helpers, configuration parameters, and infrastructure to mock [`accesscontextmanager_v1::AccessContextManagerClient`](/cpp/docs/reference/accesscontextmanager/2.24.0/classgoogle_1_1cloud_1_1accesscontextmanager__v1_1_1AccessContextManagerClient) 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/accesscontextmanager/2.24.0/accesscontextmanager-override-endpoint) - describes how to override the default endpoint.\n- [How to Override the Authentication Credentials](/cpp/docs/reference/accesscontextmanager/2.24.0/accesscontextmanager-override-authentication) - describes how to change the authentication credentials used by the library.\n- [Override Retry, Backoff, and Idempotency Policies](/cpp/docs/reference/accesscontextmanager/2.24.0/accesscontextmanager-override-retry) - describes how to change the default retry policies.\n- [Environment Variables](/cpp/docs/reference/accesscontextmanager/2.24.0/accesscontextmanager-env) - describes environment variables that can configure the behavior of the library."]]