A factory function to construct an object of type BackendServicesConnection that uses REST over HTTP as transport in lieu of gRPC.
REST transport should only be used for services that do not support gRPC or if the existing network configuration precludes using gRPC.
The returned connection object should not be used directly; instead it should be passed as an argument to the constructor of BackendServicesClient.
The optional options argument may be used to configure aspects of the returned BackendServicesConnection. 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"]],[["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complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-09-03 UTC."],[[["\u003cp\u003eThis webpage provides documentation for the Google Cloud Compute Backend Services C++ client library, with a focus on version 2.31.0.\u003c/p\u003e\n"],["\u003cp\u003eThe latest release candidate, version 2.37.0-rc, along with versions ranging from 2.36.0 down to 2.15.1, are all accessible through this documentation, offering a historical overview.\u003c/p\u003e\n"],["\u003cp\u003eKey classes in this library include \u003ccode\u003eBackendServicesClient\u003c/code\u003e (the service interface), \u003ccode\u003eBackendServicesConnection\u003c/code\u003e (the connection object), and several classes for retry and idempotency policies.\u003c/p\u003e\n"],["\u003cp\u003eThe documentation includes struct options for backoff, idempotency, polling, and retry policies, which can be configured with the \u003ccode\u003egoogle::cloud::Options\u003c/code\u003e system.\u003c/p\u003e\n"],["\u003cp\u003eA \u003ccode\u003eMakeBackendServicesConnectionRest\u003c/code\u003e function is provided to create a \u003ccode\u003eBackendServicesConnection\u003c/code\u003e object that utilizes REST over HTTP, ideal for environments without gRPC support.\u003c/p\u003e\n"]]],[],null,["# Namespace google::cloud::compute_backend_services_v1 (2.31.0)\n\nVersion 2.31.0keyboard_arrow_down\n\n- [2.42.0-rc (latest)](/cpp/docs/reference/compute/latest/namespacegoogle_1_1cloud_1_1compute__backend__services__v1)\n- [2.41.0](/cpp/docs/reference/compute/2.41.0/namespacegoogle_1_1cloud_1_1compute__backend__services__v1)\n- [2.40.0](/cpp/docs/reference/compute/2.40.0/namespacegoogle_1_1cloud_1_1compute__backend__services__v1)\n- [2.39.0](/cpp/docs/reference/compute/2.39.0/namespacegoogle_1_1cloud_1_1compute__backend__services__v1)\n- [2.38.0](/cpp/docs/reference/compute/2.38.0/namespacegoogle_1_1cloud_1_1compute__backend__services__v1)\n- [2.37.0](/cpp/docs/reference/compute/2.37.0/namespacegoogle_1_1cloud_1_1compute__backend__services__v1)\n- [2.36.0](/cpp/docs/reference/compute/2.36.0/namespacegoogle_1_1cloud_1_1compute__backend__services__v1)\n- [2.35.0](/cpp/docs/reference/compute/2.35.0/namespacegoogle_1_1cloud_1_1compute__backend__services__v1)\n- [2.34.0](/cpp/docs/reference/compute/2.34.0/namespacegoogle_1_1cloud_1_1compute__backend__services__v1)\n- [2.33.0](/cpp/docs/reference/compute/2.33.0/namespacegoogle_1_1cloud_1_1compute__backend__services__v1)\n- [2.32.0](/cpp/docs/reference/compute/2.32.0/namespacegoogle_1_1cloud_1_1compute__backend__services__v1)\n- [2.31.0](/cpp/docs/reference/compute/2.31.0/namespacegoogle_1_1cloud_1_1compute__backend__services__v1)\n- [2.30.0](/cpp/docs/reference/compute/2.30.0/namespacegoogle_1_1cloud_1_1compute__backend__services__v1)\n- [2.29.0](/cpp/docs/reference/compute/2.29.0/namespacegoogle_1_1cloud_1_1compute__backend__services__v1)\n- [2.28.0](/cpp/docs/reference/compute/2.28.0/namespacegoogle_1_1cloud_1_1compute__backend__services__v1)\n- [2.27.0](/cpp/docs/reference/compute/2.27.0/namespacegoogle_1_1cloud_1_1compute__backend__services__v1)\n- [2.26.0](/cpp/docs/reference/compute/2.26.0/namespacegoogle_1_1cloud_1_1compute__backend__services__v1)\n- [2.25.1](/cpp/docs/reference/compute/2.25.1/namespacegoogle_1_1cloud_1_1compute__backend__services__v1)\n- [2.24.0](/cpp/docs/reference/compute/2.24.0/namespacegoogle_1_1cloud_1_1compute__backend__services__v1)\n- [2.23.0](/cpp/docs/reference/compute/2.23.0/namespacegoogle_1_1cloud_1_1compute__backend__services__v1)\n- [2.22.1](/cpp/docs/reference/compute/2.22.1/namespacegoogle_1_1cloud_1_1compute__backend__services__v1)\n- [2.21.0](/cpp/docs/reference/compute/2.21.0/namespacegoogle_1_1cloud_1_1compute__backend__services__v1)\n- [2.20.0](/cpp/docs/reference/compute/2.20.0/namespacegoogle_1_1cloud_1_1compute__backend__services__v1)\n- [2.19.0](/cpp/docs/reference/compute/2.19.0/namespacegoogle_1_1cloud_1_1compute__backend__services__v1)\n- [2.18.0](/cpp/docs/reference/compute/2.18.0/namespacegoogle_1_1cloud_1_1compute__backend__services__v1)\n- [2.17.0](/cpp/docs/reference/compute/2.17.0/namespacegoogle_1_1cloud_1_1compute__backend__services__v1)\n- [2.16.0](/cpp/docs/reference/compute/2.16.0/namespacegoogle_1_1cloud_1_1compute__backend__services__v1)\n- [2.15.1](/cpp/docs/reference/compute/2.15.1/namespacegoogle_1_1cloud_1_1compute__backend__services__v1) \n\nClasses\n-------\n\n### [BackendServicesClient](/cpp/docs/reference/compute/2.31.0/classgoogle_1_1cloud_1_1compute__backend__services__v1_1_1BackendServicesClient)\n\nService for the backendServices resource.\n\n### [BackendServicesConnection](/cpp/docs/reference/compute/2.31.0/classgoogle_1_1cloud_1_1compute__backend__services__v1_1_1BackendServicesConnection)\n\nThe [`BackendServicesConnection`](/cpp/docs/reference/compute/2.31.0/classgoogle_1_1cloud_1_1compute__backend__services__v1_1_1BackendServicesConnection) object for [`BackendServicesClient`](/cpp/docs/reference/compute/2.31.0/classgoogle_1_1cloud_1_1compute__backend__services__v1_1_1BackendServicesClient).\n\n### [BackendServicesConnectionIdempotencyPolicy](/cpp/docs/reference/compute/2.31.0/classgoogle_1_1cloud_1_1compute__backend__services__v1_1_1BackendServicesConnectionIdempotencyPolicy)\n\n### [BackendServicesLimitedErrorCountRetryPolicy](/cpp/docs/reference/compute/2.31.0/classgoogle_1_1cloud_1_1compute__backend__services__v1_1_1BackendServicesLimitedErrorCountRetryPolicy)\n\nA retry policy for [`BackendServicesConnection`](/cpp/docs/reference/compute/2.31.0/classgoogle_1_1cloud_1_1compute__backend__services__v1_1_1BackendServicesConnection) based on counting errors.\n\n### [BackendServicesLimitedTimeRetryPolicy](/cpp/docs/reference/compute/2.31.0/classgoogle_1_1cloud_1_1compute__backend__services__v1_1_1BackendServicesLimitedTimeRetryPolicy)\n\nA retry policy for [`BackendServicesConnection`](/cpp/docs/reference/compute/2.31.0/classgoogle_1_1cloud_1_1compute__backend__services__v1_1_1BackendServicesConnection) based on elapsed time.\n\n### [BackendServicesRetryPolicy](/cpp/docs/reference/compute/2.31.0/classgoogle_1_1cloud_1_1compute__backend__services__v1_1_1BackendServicesRetryPolicy)\n\nThe retry policy for [`BackendServicesConnection`](/cpp/docs/reference/compute/2.31.0/classgoogle_1_1cloud_1_1compute__backend__services__v1_1_1BackendServicesConnection).\n\nStructs\n-------\n\n### [BackendServicesBackoffPolicyOption](/cpp/docs/reference/compute/2.31.0/structgoogle_1_1cloud_1_1compute__backend__services__v1_1_1BackendServicesBackoffPolicyOption)\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### [BackendServicesConnectionIdempotencyPolicyOption](/cpp/docs/reference/compute/2.31.0/structgoogle_1_1cloud_1_1compute__backend__services__v1_1_1BackendServicesConnectionIdempotencyPolicyOption)\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### [BackendServicesPollingPolicyOption](/cpp/docs/reference/compute/2.31.0/structgoogle_1_1cloud_1_1compute__backend__services__v1_1_1BackendServicesPollingPolicyOption)\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### [BackendServicesRetryPolicyOption](/cpp/docs/reference/compute/2.31.0/structgoogle_1_1cloud_1_1compute__backend__services__v1_1_1BackendServicesRetryPolicyOption)\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### MakeDefaultBackendServicesConnectionIdempotencyPolicy()\n\n### MakeBackendServicesConnectionRest(Options)\n\nA factory function to construct an object of type [`BackendServicesConnection`](/cpp/docs/reference/compute/2.31.0/classgoogle_1_1cloud_1_1compute__backend__services__v1_1_1BackendServicesConnection) that uses REST over HTTP as transport in lieu of gRPC. \nREST transport should only be used for services that do not support gRPC or if the existing network configuration precludes using gRPC.\n\nThe returned connection object should not be used directly; instead it should be passed as an argument to the constructor of [BackendServicesClient](/cpp/docs/reference/compute/2.31.0/classgoogle_1_1cloud_1_1compute__backend__services__v1_1_1BackendServicesClient).\n\nThe optional `options` argument may be used to configure aspects of the returned [`BackendServicesConnection`](/cpp/docs/reference/compute/2.31.0/classgoogle_1_1cloud_1_1compute__backend__services__v1_1_1BackendServicesConnection). 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::RestOptionList`](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::compute_backend_services_v1::BackendServicesPolicyOptionList`](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."]]
