The returned connection object should not be used directly; instead it should be passed as an argument to the constructor ofEventarcClient.
The optionaloptionsargument may be used to configure aspects of the returnedEventarcConnection. Expected options are any of the types in the following option lists:
[[["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 document provides comprehensive reference information for Google Cloud Eventarc C++ client library, version 2.30.0.\u003c/p\u003e\n"],["\u003cp\u003eThe latest release is version 2.37.0-rc, with the page listing all the way back to version 2.11.0 for reference.\u003c/p\u003e\n"],["\u003cp\u003e\u003ccode\u003eEventarcClient\u003c/code\u003e enables users to subscribe to and forward events from various Google Cloud services to supported destinations.\u003c/p\u003e\n"],["\u003cp\u003e\u003ccode\u003eEventarcConnection\u003c/code\u003e and its associated classes and structs like \u003ccode\u003eEventarcRetryPolicy\u003c/code\u003e are included to configure client connection, retry policies and control operation behavior.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eMakeEventarcConnection\u003c/code\u003e function is a factory for creating an \u003ccode\u003eEventarcConnection\u003c/code\u003e object with customizable options.\u003c/p\u003e\n"]]],[],null,["# Namespace google::cloud::eventarc_v1 (2.30.0)\n\nVersion 2.30.0keyboard_arrow_down\n\n- [2.42.0-rc (latest)](/cpp/docs/reference/eventarc/latest/namespacegoogle_1_1cloud_1_1eventarc__v1)\n- [2.41.0](/cpp/docs/reference/eventarc/2.41.0/namespacegoogle_1_1cloud_1_1eventarc__v1)\n- [2.40.0](/cpp/docs/reference/eventarc/2.40.0/namespacegoogle_1_1cloud_1_1eventarc__v1)\n- [2.39.0](/cpp/docs/reference/eventarc/2.39.0/namespacegoogle_1_1cloud_1_1eventarc__v1)\n- [2.38.0](/cpp/docs/reference/eventarc/2.38.0/namespacegoogle_1_1cloud_1_1eventarc__v1)\n- [2.37.0](/cpp/docs/reference/eventarc/2.37.0/namespacegoogle_1_1cloud_1_1eventarc__v1)\n- [2.36.0](/cpp/docs/reference/eventarc/2.36.0/namespacegoogle_1_1cloud_1_1eventarc__v1)\n- [2.35.0](/cpp/docs/reference/eventarc/2.35.0/namespacegoogle_1_1cloud_1_1eventarc__v1)\n- [2.34.0](/cpp/docs/reference/eventarc/2.34.0/namespacegoogle_1_1cloud_1_1eventarc__v1)\n- [2.33.0](/cpp/docs/reference/eventarc/2.33.0/namespacegoogle_1_1cloud_1_1eventarc__v1)\n- [2.32.0](/cpp/docs/reference/eventarc/2.32.0/namespacegoogle_1_1cloud_1_1eventarc__v1)\n- [2.31.0](/cpp/docs/reference/eventarc/2.31.0/namespacegoogle_1_1cloud_1_1eventarc__v1)\n- [2.30.0](/cpp/docs/reference/eventarc/2.30.0/namespacegoogle_1_1cloud_1_1eventarc__v1)\n- [2.29.0](/cpp/docs/reference/eventarc/2.29.0/namespacegoogle_1_1cloud_1_1eventarc__v1)\n- [2.28.0](/cpp/docs/reference/eventarc/2.28.0/namespacegoogle_1_1cloud_1_1eventarc__v1)\n- [2.27.0](/cpp/docs/reference/eventarc/2.27.0/namespacegoogle_1_1cloud_1_1eventarc__v1)\n- [2.26.0](/cpp/docs/reference/eventarc/2.26.0/namespacegoogle_1_1cloud_1_1eventarc__v1)\n- [2.25.1](/cpp/docs/reference/eventarc/2.25.1/namespacegoogle_1_1cloud_1_1eventarc__v1)\n- [2.24.0](/cpp/docs/reference/eventarc/2.24.0/namespacegoogle_1_1cloud_1_1eventarc__v1)\n- [2.23.0](/cpp/docs/reference/eventarc/2.23.0/namespacegoogle_1_1cloud_1_1eventarc__v1)\n- [2.22.1](/cpp/docs/reference/eventarc/2.22.1/namespacegoogle_1_1cloud_1_1eventarc__v1)\n- [2.21.0](/cpp/docs/reference/eventarc/2.21.0/namespacegoogle_1_1cloud_1_1eventarc__v1)\n- [2.20.0](/cpp/docs/reference/eventarc/2.20.0/namespacegoogle_1_1cloud_1_1eventarc__v1)\n- [2.19.0](/cpp/docs/reference/eventarc/2.19.0/namespacegoogle_1_1cloud_1_1eventarc__v1)\n- [2.18.0](/cpp/docs/reference/eventarc/2.18.0/namespacegoogle_1_1cloud_1_1eventarc__v1)\n- [2.17.0](/cpp/docs/reference/eventarc/2.17.0/namespacegoogle_1_1cloud_1_1eventarc__v1)\n- [2.16.0](/cpp/docs/reference/eventarc/2.16.0/namespacegoogle_1_1cloud_1_1eventarc__v1)\n- [2.15.1](/cpp/docs/reference/eventarc/2.15.1/namespacegoogle_1_1cloud_1_1eventarc__v1)\n- [2.14.0](/cpp/docs/reference/eventarc/2.14.0/namespacegoogle_1_1cloud_1_1eventarc__v1)\n- [2.13.0](/cpp/docs/reference/eventarc/2.13.0/namespacegoogle_1_1cloud_1_1eventarc__v1)\n- [2.12.0](/cpp/docs/reference/eventarc/2.12.0/namespacegoogle_1_1cloud_1_1eventarc__v1)\n- [2.11.0](/cpp/docs/reference/eventarc/2.11.0/namespacegoogle_1_1cloud_1_1eventarc__v1) \n\nClasses\n-------\n\n### [EventarcClient](/cpp/docs/reference/eventarc/2.30.0/classgoogle_1_1cloud_1_1eventarc__v1_1_1EventarcClient)\n\nEventarc allows users to subscribe to various events that are provided by Google Cloud services and forward them to supported destinations.\n\n### [EventarcConnection](/cpp/docs/reference/eventarc/2.30.0/classgoogle_1_1cloud_1_1eventarc__v1_1_1EventarcConnection)\n\nThe [`EventarcConnection`](/cpp/docs/reference/eventarc/2.30.0/classgoogle_1_1cloud_1_1eventarc__v1_1_1EventarcConnection) object for [`EventarcClient`](/cpp/docs/reference/eventarc/2.30.0/classgoogle_1_1cloud_1_1eventarc__v1_1_1EventarcClient).\n\n### [EventarcConnectionIdempotencyPolicy](/cpp/docs/reference/eventarc/2.30.0/classgoogle_1_1cloud_1_1eventarc__v1_1_1EventarcConnectionIdempotencyPolicy)\n\n### [EventarcLimitedErrorCountRetryPolicy](/cpp/docs/reference/eventarc/2.30.0/classgoogle_1_1cloud_1_1eventarc__v1_1_1EventarcLimitedErrorCountRetryPolicy)\n\nA retry policy for [`EventarcConnection`](/cpp/docs/reference/eventarc/2.30.0/classgoogle_1_1cloud_1_1eventarc__v1_1_1EventarcConnection) based on counting errors.\n\n### [EventarcLimitedTimeRetryPolicy](/cpp/docs/reference/eventarc/2.30.0/classgoogle_1_1cloud_1_1eventarc__v1_1_1EventarcLimitedTimeRetryPolicy)\n\nA retry policy for [`EventarcConnection`](/cpp/docs/reference/eventarc/2.30.0/classgoogle_1_1cloud_1_1eventarc__v1_1_1EventarcConnection) based on elapsed time.\n\n### [EventarcRetryPolicy](/cpp/docs/reference/eventarc/2.30.0/classgoogle_1_1cloud_1_1eventarc__v1_1_1EventarcRetryPolicy)\n\nThe retry policy for [`EventarcConnection`](/cpp/docs/reference/eventarc/2.30.0/classgoogle_1_1cloud_1_1eventarc__v1_1_1EventarcConnection).\n\nStructs\n-------\n\n### [EventarcBackoffPolicyOption](/cpp/docs/reference/eventarc/2.30.0/structgoogle_1_1cloud_1_1eventarc__v1_1_1EventarcBackoffPolicyOption)\n\nUse with [`google::cloud::Options`](https://cloud.google.com/cpp/docs/reference/common/latest/classgoogle_1_1cloud_1_1Options.html) to configure the backoff policy.\n\n### [EventarcConnectionIdempotencyPolicyOption](/cpp/docs/reference/eventarc/2.30.0/structgoogle_1_1cloud_1_1eventarc__v1_1_1EventarcConnectionIdempotencyPolicyOption)\n\nUse with [`google::cloud::Options`](https://cloud.google.com/cpp/docs/reference/common/latest/classgoogle_1_1cloud_1_1Options.html) to configure which operations are retried.\n\n### [EventarcPollingPolicyOption](/cpp/docs/reference/eventarc/2.30.0/structgoogle_1_1cloud_1_1eventarc__v1_1_1EventarcPollingPolicyOption)\n\nUse with [`google::cloud::Options`](https://cloud.google.com/cpp/docs/reference/common/latest/classgoogle_1_1cloud_1_1Options.html) to configure the long-running operations polling policy.\n\n### [EventarcRetryPolicyOption](/cpp/docs/reference/eventarc/2.30.0/structgoogle_1_1cloud_1_1eventarc__v1_1_1EventarcRetryPolicyOption)\n\nUse with [`google::cloud::Options`](https://cloud.google.com/cpp/docs/reference/common/latest/classgoogle_1_1cloud_1_1Options.html) to configure the retry policy.\n\nFunctions\n---------\n\n### MakeEventarcConnection(Options)\n\nA factory function to construct an object of type [`EventarcConnection`](/cpp/docs/reference/eventarc/2.30.0/classgoogle_1_1cloud_1_1eventarc__v1_1_1EventarcConnection). \nThe returned connection object should not be used directly; instead it should be passed as an argument to the constructor of [EventarcClient](/cpp/docs/reference/eventarc/2.30.0/classgoogle_1_1cloud_1_1eventarc__v1_1_1EventarcClient).\n\nThe optional `options` argument may be used to configure aspects of the returned [`EventarcConnection`](/cpp/docs/reference/eventarc/2.30.0/classgoogle_1_1cloud_1_1eventarc__v1_1_1EventarcConnection). Expected options are any of the types in the following option lists:\n\n- [`google::cloud::CommonOptionList`](https://cloud.google.com/cpp/docs/reference/common/latest/namespacegoogle_1_1cloud.html)\n- [`google::cloud::GrpcOptionList`](https://cloud.google.com/cpp/docs/reference/common/latest/namespacegoogle_1_1cloud.html)\n- [`google::cloud::UnifiedCredentialsOptionList`](https://cloud.google.com/cpp/docs/reference/common/latest/namespacegoogle_1_1cloud.html)\n- [`google::cloud::eventarc_v1::EventarcPolicyOptionList`](about:invalid#zCSafez)\n\n| **Note:** Unexpected options will be ignored. To log unexpected options instead, set `GOOGLE_CLOUD_CPP_ENABLE_CLOG=yes` in the environment.\n\n### MakeDefaultEventarcConnectionIdempotencyPolicy()"]]
