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 webpage provides documentation for the Google Cloud Eventarc C++ client library, with version 2.37.0-rc being the latest release candidate and 2.26.0 being the current version displayed.\u003c/p\u003e\n"],["\u003cp\u003eThe documentation covers various classes related to Eventarc, including \u003ccode\u003eEventarcClient\u003c/code\u003e, \u003ccode\u003eEventarcConnection\u003c/code\u003e, and several policy classes like \u003ccode\u003eEventarcConnectionIdempotencyPolicy\u003c/code\u003e, \u003ccode\u003eEventarcLimitedErrorCountRetryPolicy\u003c/code\u003e, and \u003ccode\u003eEventarcRetryPolicy\u003c/code\u003e.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eMakeEventarcConnection\u003c/code\u003e function is detailed, explaining how to create an \u003ccode\u003eEventarcConnection\u003c/code\u003e object, how to configure the connection using options, and that it should not be used directly but rather passed as an argument when constructing the \u003ccode\u003eEventarcClient\u003c/code\u003e.\u003c/p\u003e\n"],["\u003cp\u003eThe webpage also lists multiple previous versions of the Eventarc client library, ranging from 2.36.0 down to 2.11.0.\u003c/p\u003e\n"],["\u003cp\u003eStructs such as \u003ccode\u003eEventarcBackoffPolicyOption\u003c/code\u003e, \u003ccode\u003eEventarcConnectionIdempotencyPolicyOption\u003c/code\u003e, \u003ccode\u003eEventarcPollingPolicyOption\u003c/code\u003e, and \u003ccode\u003eEventarcRetryPolicyOption\u003c/code\u003e are available for detailed configurations.\u003c/p\u003e\n"]]],[],null,["# Namespace google::cloud::eventarc_v1 (2.26.0)\n\nVersion 2.26.0keyboard_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/2.26.0/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/2.26.0/classgoogle_1_1cloud_1_1eventarc__v1_1_1EventarcConnection)\n\nThe [`EventarcConnection`](/cpp/docs/reference/eventarc/2.26.0/classgoogle_1_1cloud_1_1eventarc__v1_1_1EventarcConnection) object for [`EventarcClient`](/cpp/docs/reference/eventarc/2.26.0/classgoogle_1_1cloud_1_1eventarc__v1_1_1EventarcClient).\n\n### [EventarcConnectionIdempotencyPolicy](/cpp/docs/reference/eventarc/2.26.0/classgoogle_1_1cloud_1_1eventarc__v1_1_1EventarcConnectionIdempotencyPolicy)\n\n### [EventarcLimitedErrorCountRetryPolicy](/cpp/docs/reference/eventarc/2.26.0/classgoogle_1_1cloud_1_1eventarc__v1_1_1EventarcLimitedErrorCountRetryPolicy)\n\nA retry policy for [`EventarcConnection`](/cpp/docs/reference/eventarc/2.26.0/classgoogle_1_1cloud_1_1eventarc__v1_1_1EventarcConnection) based on counting errors.\n\n### [EventarcLimitedTimeRetryPolicy](/cpp/docs/reference/eventarc/2.26.0/classgoogle_1_1cloud_1_1eventarc__v1_1_1EventarcLimitedTimeRetryPolicy)\n\nA retry policy for [`EventarcConnection`](/cpp/docs/reference/eventarc/2.26.0/classgoogle_1_1cloud_1_1eventarc__v1_1_1EventarcConnection) based on elapsed time.\n\n### [EventarcRetryPolicy](/cpp/docs/reference/eventarc/2.26.0/classgoogle_1_1cloud_1_1eventarc__v1_1_1EventarcRetryPolicy)\n\nThe retry policy for [`EventarcConnection`](/cpp/docs/reference/eventarc/2.26.0/classgoogle_1_1cloud_1_1eventarc__v1_1_1EventarcConnection).\n\nStructs\n-------\n\n### [EventarcBackoffPolicyOption](/cpp/docs/reference/eventarc/2.26.0/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/2.26.0/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/2.26.0/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/2.26.0/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/2.26.0/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/2.26.0/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/2.26.0/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()"]]
