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complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-28 UTC."],[[["\u003cp\u003eThis webpage provides documentation for the Google Cloud Compute Backend Services C++ client library, with the current version displayed being 2.34.0.\u003c/p\u003e\n"],["\u003cp\u003eThe page lists available versions of the library, ranging from the latest release candidate, 2.37.0-rc, down to version 2.15.1, with hyperlinks to their respective documentation.\u003c/p\u003e\n"],["\u003cp\u003eIt outlines the classes within the library, including \u003ccode\u003eBackendServicesClient\u003c/code\u003e for interacting with the service, and \u003ccode\u003eBackendServicesConnection\u003c/code\u003e for managing the connection, alongside related classes such as retry policies and idempotency.\u003c/p\u003e\n"],["\u003cp\u003eThe documentation includes details on various structs like \u003ccode\u003eBackendServicesBackoffPolicyOption\u003c/code\u003e and \u003ccode\u003eBackendServicesRetryPolicyOption\u003c/code\u003e used to configure behavior, as well as a factory function \u003ccode\u003eMakeBackendServicesConnectionRest\u003c/code\u003e for creating REST-based connections.\u003c/p\u003e\n"],["\u003cp\u003eUsers can create a REST connection with the \u003ccode\u003eMakeBackendServicesConnectionRest\u003c/code\u003e function, and use various options to configure it.\u003c/p\u003e\n"]]],[],null,["# Namespace google::cloud::compute_backend_services_v1 (2.34.0)\n\nVersion 2.34.0keyboard_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/2.34.0/classgoogle_1_1cloud_1_1compute__backend__services__v1_1_1BackendServicesClient)\n\nService for the backendServices resource.\n\n### [BackendServicesConnection](/cpp/docs/reference/compute/2.34.0/classgoogle_1_1cloud_1_1compute__backend__services__v1_1_1BackendServicesConnection)\n\nThe [`BackendServicesConnection`](/cpp/docs/reference/compute/2.34.0/classgoogle_1_1cloud_1_1compute__backend__services__v1_1_1BackendServicesConnection) object for [`BackendServicesClient`](/cpp/docs/reference/compute/2.34.0/classgoogle_1_1cloud_1_1compute__backend__services__v1_1_1BackendServicesClient).\n\n### [BackendServicesConnectionIdempotencyPolicy](/cpp/docs/reference/compute/2.34.0/classgoogle_1_1cloud_1_1compute__backend__services__v1_1_1BackendServicesConnectionIdempotencyPolicy)\n\n### [BackendServicesLimitedErrorCountRetryPolicy](/cpp/docs/reference/compute/2.34.0/classgoogle_1_1cloud_1_1compute__backend__services__v1_1_1BackendServicesLimitedErrorCountRetryPolicy)\n\nA retry policy for [`BackendServicesConnection`](/cpp/docs/reference/compute/2.34.0/classgoogle_1_1cloud_1_1compute__backend__services__v1_1_1BackendServicesConnection) based on counting errors.\n\n### [BackendServicesLimitedTimeRetryPolicy](/cpp/docs/reference/compute/2.34.0/classgoogle_1_1cloud_1_1compute__backend__services__v1_1_1BackendServicesLimitedTimeRetryPolicy)\n\nA retry policy for [`BackendServicesConnection`](/cpp/docs/reference/compute/2.34.0/classgoogle_1_1cloud_1_1compute__backend__services__v1_1_1BackendServicesConnection) based on elapsed time.\n\n### [BackendServicesRetryPolicy](/cpp/docs/reference/compute/2.34.0/classgoogle_1_1cloud_1_1compute__backend__services__v1_1_1BackendServicesRetryPolicy)\n\nThe retry policy for [`BackendServicesConnection`](/cpp/docs/reference/compute/2.34.0/classgoogle_1_1cloud_1_1compute__backend__services__v1_1_1BackendServicesConnection).\n\nStructs\n-------\n\n### [BackendServicesBackoffPolicyOption](/cpp/docs/reference/compute/2.34.0/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/2.34.0/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/2.34.0/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/2.34.0/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/2.34.0/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/2.34.0/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/2.34.0/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."]]
