The returned connection object should not be used directly; instead it should be passed as an argument to the constructor ofTraceServiceClient.
The optionaloptionsargument may be used to configure aspects of the returnedTraceServiceConnection. 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 reference information for the Google Cloud C++ client library's Trace API, specifically focusing on versions ranging from 2.11.0 up to the latest release candidate, 2.37.0-rc.\u003c/p\u003e\n"],["\u003cp\u003eThe latest stable version highlighted is 2.36.0, with multiple prior stable versions listed in descending order, allowing developers to find documentation for the specific version they are using.\u003c/p\u003e\n"],["\u003cp\u003eKey classes are outlined, such as \u003ccode\u003eTraceServiceClient\u003c/code\u003e and \u003ccode\u003eTraceServiceConnection\u003c/code\u003e, which facilitate interaction with the trace service, including collecting and viewing traces and spans.\u003c/p\u003e\n"],["\u003cp\u003eThe documentation details several retry and backoff policies, like \u003ccode\u003eTraceServiceLimitedErrorCountRetryPolicy\u003c/code\u003e and \u003ccode\u003eTraceServiceLimitedTimeRetryPolicy\u003c/code\u003e, which control how the client library handles transient errors.\u003c/p\u003e\n"],["\u003cp\u003eIt also includes a factory function, \u003ccode\u003eMakeTraceServiceConnection\u003c/code\u003e, for creating a \u003ccode\u003eTraceServiceConnection\u003c/code\u003e object and an alias \u003ccode\u003eTraceServicePolicyOptionList\u003c/code\u003e for a specific set of \u003ccode\u003eOptionList\u003c/code\u003e to make customization easier.\u003c/p\u003e\n"]]],[],null,["# Namespace google::cloud::trace_v2 (2.21.0)\n\nVersion 2.21.0keyboard_arrow_down\n\n- [2.42.0-rc (latest)](/cpp/docs/reference/trace/latest/namespacegoogle_1_1cloud_1_1trace__v2)\n- [2.41.0](/cpp/docs/reference/trace/2.41.0/namespacegoogle_1_1cloud_1_1trace__v2)\n- [2.40.0](/cpp/docs/reference/trace/2.40.0/namespacegoogle_1_1cloud_1_1trace__v2)\n- [2.39.0](/cpp/docs/reference/trace/2.39.0/namespacegoogle_1_1cloud_1_1trace__v2)\n- [2.38.0](/cpp/docs/reference/trace/2.38.0/namespacegoogle_1_1cloud_1_1trace__v2)\n- [2.37.0](/cpp/docs/reference/trace/2.37.0/namespacegoogle_1_1cloud_1_1trace__v2)\n- [2.36.0](/cpp/docs/reference/trace/2.36.0/namespacegoogle_1_1cloud_1_1trace__v2)\n- [2.35.0](/cpp/docs/reference/trace/2.35.0/namespacegoogle_1_1cloud_1_1trace__v2)\n- [2.34.0](/cpp/docs/reference/trace/2.34.0/namespacegoogle_1_1cloud_1_1trace__v2)\n- [2.33.0](/cpp/docs/reference/trace/2.33.0/namespacegoogle_1_1cloud_1_1trace__v2)\n- [2.32.0](/cpp/docs/reference/trace/2.32.0/namespacegoogle_1_1cloud_1_1trace__v2)\n- [2.31.0](/cpp/docs/reference/trace/2.31.0/namespacegoogle_1_1cloud_1_1trace__v2)\n- [2.30.0](/cpp/docs/reference/trace/2.30.0/namespacegoogle_1_1cloud_1_1trace__v2)\n- [2.29.0](/cpp/docs/reference/trace/2.29.0/namespacegoogle_1_1cloud_1_1trace__v2)\n- [2.28.0](/cpp/docs/reference/trace/2.28.0/namespacegoogle_1_1cloud_1_1trace__v2)\n- [2.27.0](/cpp/docs/reference/trace/2.27.0/namespacegoogle_1_1cloud_1_1trace__v2)\n- [2.26.0](/cpp/docs/reference/trace/2.26.0/namespacegoogle_1_1cloud_1_1trace__v2)\n- [2.25.1](/cpp/docs/reference/trace/2.25.1/namespacegoogle_1_1cloud_1_1trace__v2)\n- [2.24.0](/cpp/docs/reference/trace/2.24.0/namespacegoogle_1_1cloud_1_1trace__v2)\n- [2.23.0](/cpp/docs/reference/trace/2.23.0/namespacegoogle_1_1cloud_1_1trace__v2)\n- [2.22.1](/cpp/docs/reference/trace/2.22.1/namespacegoogle_1_1cloud_1_1trace__v2)\n- [2.21.0](/cpp/docs/reference/trace/2.21.0/namespacegoogle_1_1cloud_1_1trace__v2)\n- [2.20.0](/cpp/docs/reference/trace/2.20.0/namespacegoogle_1_1cloud_1_1trace__v2)\n- [2.19.0](/cpp/docs/reference/trace/2.19.0/namespacegoogle_1_1cloud_1_1trace__v2)\n- [2.18.0](/cpp/docs/reference/trace/2.18.0/namespacegoogle_1_1cloud_1_1trace__v2)\n- [2.17.0](/cpp/docs/reference/trace/2.17.0/namespacegoogle_1_1cloud_1_1trace__v2)\n- [2.16.0](/cpp/docs/reference/trace/2.16.0/namespacegoogle_1_1cloud_1_1trace__v2)\n- [2.15.1](/cpp/docs/reference/trace/2.15.1/namespacegoogle_1_1cloud_1_1trace__v2)\n- [2.14.0](/cpp/docs/reference/trace/2.14.0/namespacegoogle_1_1cloud_1_1trace__v2)\n- [2.13.0](/cpp/docs/reference/trace/2.13.0/namespacegoogle_1_1cloud_1_1trace__v2)\n- [2.12.0](/cpp/docs/reference/trace/2.12.0/namespacegoogle_1_1cloud_1_1trace__v2)\n- [2.11.0](/cpp/docs/reference/trace/2.11.0/namespacegoogle_1_1cloud_1_1trace__v2) \n\nClasses\n-------\n\n### [TraceServiceClient](/cpp/docs/reference/trace/2.21.0/classgoogle_1_1cloud_1_1trace__v2_1_1TraceServiceClient)\n\nService for collecting and viewing traces and spans within a trace.\n\n### [TraceServiceConnection](/cpp/docs/reference/trace/2.21.0/classgoogle_1_1cloud_1_1trace__v2_1_1TraceServiceConnection)\n\nThe [`TraceServiceConnection`](/cpp/docs/reference/trace/2.21.0/classgoogle_1_1cloud_1_1trace__v2_1_1TraceServiceConnection) object for [`TraceServiceClient`](/cpp/docs/reference/trace/2.21.0/classgoogle_1_1cloud_1_1trace__v2_1_1TraceServiceClient).\n\n### [TraceServiceConnectionIdempotencyPolicy](/cpp/docs/reference/trace/2.21.0/classgoogle_1_1cloud_1_1trace__v2_1_1TraceServiceConnectionIdempotencyPolicy)\n\n### [TraceServiceLimitedErrorCountRetryPolicy](/cpp/docs/reference/trace/2.21.0/classgoogle_1_1cloud_1_1trace__v2_1_1TraceServiceLimitedErrorCountRetryPolicy)\n\nA retry policy for [`TraceServiceConnection`](/cpp/docs/reference/trace/2.21.0/classgoogle_1_1cloud_1_1trace__v2_1_1TraceServiceConnection) based on counting errors.\n\n### [TraceServiceLimitedTimeRetryPolicy](/cpp/docs/reference/trace/2.21.0/classgoogle_1_1cloud_1_1trace__v2_1_1TraceServiceLimitedTimeRetryPolicy)\n\nA retry policy for [`TraceServiceConnection`](/cpp/docs/reference/trace/2.21.0/classgoogle_1_1cloud_1_1trace__v2_1_1TraceServiceConnection) based on elapsed time.\n\n### [TraceServiceRetryPolicy](/cpp/docs/reference/trace/2.21.0/classgoogle_1_1cloud_1_1trace__v2_1_1TraceServiceRetryPolicy)\n\nThe retry policy for [`TraceServiceConnection`](/cpp/docs/reference/trace/2.21.0/classgoogle_1_1cloud_1_1trace__v2_1_1TraceServiceConnection).\n\nStructs\n-------\n\n### [TraceServiceBackoffPolicyOption](/cpp/docs/reference/trace/2.21.0/structgoogle_1_1cloud_1_1trace__v2_1_1TraceServiceBackoffPolicyOption)\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### [TraceServiceConnectionIdempotencyPolicyOption](/cpp/docs/reference/trace/2.21.0/structgoogle_1_1cloud_1_1trace__v2_1_1TraceServiceConnectionIdempotencyPolicyOption)\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### [TraceServiceRetryPolicyOption](/cpp/docs/reference/trace/2.21.0/structgoogle_1_1cloud_1_1trace__v2_1_1TraceServiceRetryPolicyOption)\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### MakeTraceServiceConnection(Options)\n\nA factory function to construct an object of type [`TraceServiceConnection`](/cpp/docs/reference/trace/2.21.0/classgoogle_1_1cloud_1_1trace__v2_1_1TraceServiceConnection). \nThe returned connection object should not be used directly; instead it should be passed as an argument to the constructor of [TraceServiceClient](/cpp/docs/reference/trace/2.21.0/classgoogle_1_1cloud_1_1trace__v2_1_1TraceServiceClient).\n\nThe optional `options` argument may be used to configure aspects of the returned [`TraceServiceConnection`](/cpp/docs/reference/trace/2.21.0/classgoogle_1_1cloud_1_1trace__v2_1_1TraceServiceConnection). 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::trace_v2::TraceServicePolicyOptionList`](/cpp/docs/reference/trace/2.21.0/namespacegoogle_1_1cloud_1_1trace__v2)\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### MakeDefaultTraceServiceConnectionIdempotencyPolicy()\n\nType Aliases\n------------\n\n### TraceServicePolicyOptionList\n\n**Alias Of** : `OptionList\u003c TraceServiceRetryPolicyOption, TraceServiceBackoffPolicyOption, TraceServiceConnectionIdempotencyPolicyOption \u003e` \nThe options applicable to TraceService."]]
