A factory function to construct an object of type ZonesConnection 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 ZonesClient.
The optional options argument may be used to configure aspects of the returned ZonesConnection. 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complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-28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\u003eThe latest release candidate version is 2.37.0-rc, and there are multiple other stable versions available, ranging from 2.36.0 down to 2.15.1, with version 2.19.0 being featured prominently.\u003c/p\u003e\n"],["\u003cp\u003eThis documentation provides details for the Zones resource service, including \u003ccode\u003eZonesClient\u003c/code\u003e and \u003ccode\u003eZonesConnection\u003c/code\u003e classes for interacting with it.\u003c/p\u003e\n"],["\u003cp\u003eThere are several classes provided related to managing retries and connections, such as \u003ccode\u003eZonesConnectionIdempotencyPolicy\u003c/code\u003e, \u003ccode\u003eZonesLimitedErrorCountRetryPolicy\u003c/code\u003e, \u003ccode\u003eZonesLimitedTimeRetryPolicy\u003c/code\u003e, and \u003ccode\u003eZonesRetryPolicy\u003c/code\u003e.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eMakeZonesConnectionRest\u003c/code\u003e function allows the creation of a \u003ccode\u003eZonesConnection\u003c/code\u003e object that utilizes REST over HTTP as a transport method instead of gRPC, and accepts various options for configuration.\u003c/p\u003e\n"],["\u003cp\u003e\u003ccode\u003eZonesPolicyOptionList\u003c/code\u003e is an alias that represents the list of options applicable to Zones, including retry, backoff, and connection idempotency policies.\u003c/p\u003e\n"]]],[],null,["# Namespace google::cloud::compute_zones_v1 (2.19.0)\n\nVersion 2.19.0keyboard_arrow_down\n\n- [2.42.0-rc (latest)](/cpp/docs/reference/compute/latest/namespacegoogle_1_1cloud_1_1compute__zones__v1)\n- [2.41.0](/cpp/docs/reference/compute/2.41.0/namespacegoogle_1_1cloud_1_1compute__zones__v1)\n- [2.40.0](/cpp/docs/reference/compute/2.40.0/namespacegoogle_1_1cloud_1_1compute__zones__v1)\n- [2.39.0](/cpp/docs/reference/compute/2.39.0/namespacegoogle_1_1cloud_1_1compute__zones__v1)\n- [2.38.0](/cpp/docs/reference/compute/2.38.0/namespacegoogle_1_1cloud_1_1compute__zones__v1)\n- [2.37.0](/cpp/docs/reference/compute/2.37.0/namespacegoogle_1_1cloud_1_1compute__zones__v1)\n- [2.36.0](/cpp/docs/reference/compute/2.36.0/namespacegoogle_1_1cloud_1_1compute__zones__v1)\n- [2.35.0](/cpp/docs/reference/compute/2.35.0/namespacegoogle_1_1cloud_1_1compute__zones__v1)\n- [2.34.0](/cpp/docs/reference/compute/2.34.0/namespacegoogle_1_1cloud_1_1compute__zones__v1)\n- [2.33.0](/cpp/docs/reference/compute/2.33.0/namespacegoogle_1_1cloud_1_1compute__zones__v1)\n- [2.32.0](/cpp/docs/reference/compute/2.32.0/namespacegoogle_1_1cloud_1_1compute__zones__v1)\n- [2.31.0](/cpp/docs/reference/compute/2.31.0/namespacegoogle_1_1cloud_1_1compute__zones__v1)\n- [2.30.0](/cpp/docs/reference/compute/2.30.0/namespacegoogle_1_1cloud_1_1compute__zones__v1)\n- [2.29.0](/cpp/docs/reference/compute/2.29.0/namespacegoogle_1_1cloud_1_1compute__zones__v1)\n- [2.28.0](/cpp/docs/reference/compute/2.28.0/namespacegoogle_1_1cloud_1_1compute__zones__v1)\n- [2.27.0](/cpp/docs/reference/compute/2.27.0/namespacegoogle_1_1cloud_1_1compute__zones__v1)\n- [2.26.0](/cpp/docs/reference/compute/2.26.0/namespacegoogle_1_1cloud_1_1compute__zones__v1)\n- [2.25.1](/cpp/docs/reference/compute/2.25.1/namespacegoogle_1_1cloud_1_1compute__zones__v1)\n- [2.24.0](/cpp/docs/reference/compute/2.24.0/namespacegoogle_1_1cloud_1_1compute__zones__v1)\n- [2.23.0](/cpp/docs/reference/compute/2.23.0/namespacegoogle_1_1cloud_1_1compute__zones__v1)\n- [2.22.1](/cpp/docs/reference/compute/2.22.1/namespacegoogle_1_1cloud_1_1compute__zones__v1)\n- [2.21.0](/cpp/docs/reference/compute/2.21.0/namespacegoogle_1_1cloud_1_1compute__zones__v1)\n- [2.20.0](/cpp/docs/reference/compute/2.20.0/namespacegoogle_1_1cloud_1_1compute__zones__v1)\n- [2.19.0](/cpp/docs/reference/compute/2.19.0/namespacegoogle_1_1cloud_1_1compute__zones__v1)\n- [2.18.0](/cpp/docs/reference/compute/2.18.0/namespacegoogle_1_1cloud_1_1compute__zones__v1)\n- [2.17.0](/cpp/docs/reference/compute/2.17.0/namespacegoogle_1_1cloud_1_1compute__zones__v1)\n- [2.16.0](/cpp/docs/reference/compute/2.16.0/namespacegoogle_1_1cloud_1_1compute__zones__v1)\n- [2.15.1](/cpp/docs/reference/compute/2.15.1/namespacegoogle_1_1cloud_1_1compute__zones__v1) \n\nClasses\n-------\n\n### [ZonesClient](/cpp/docs/reference/compute/2.19.0/classgoogle_1_1cloud_1_1compute__zones__v1_1_1ZonesClient)\n\nService for the zones resource.\n\n### [ZonesConnection](/cpp/docs/reference/compute/2.19.0/classgoogle_1_1cloud_1_1compute__zones__v1_1_1ZonesConnection)\n\nThe [`ZonesConnection`](/cpp/docs/reference/compute/2.19.0/classgoogle_1_1cloud_1_1compute__zones__v1_1_1ZonesConnection) object for [`ZonesClient`](/cpp/docs/reference/compute/2.19.0/classgoogle_1_1cloud_1_1compute__zones__v1_1_1ZonesClient).\n\n### [ZonesConnectionIdempotencyPolicy](/cpp/docs/reference/compute/2.19.0/classgoogle_1_1cloud_1_1compute__zones__v1_1_1ZonesConnectionIdempotencyPolicy)\n\n### [ZonesLimitedErrorCountRetryPolicy](/cpp/docs/reference/compute/2.19.0/classgoogle_1_1cloud_1_1compute__zones__v1_1_1ZonesLimitedErrorCountRetryPolicy)\n\nA retry policy for [`ZonesConnection`](/cpp/docs/reference/compute/2.19.0/classgoogle_1_1cloud_1_1compute__zones__v1_1_1ZonesConnection) based on counting errors.\n\n### [ZonesLimitedTimeRetryPolicy](/cpp/docs/reference/compute/2.19.0/classgoogle_1_1cloud_1_1compute__zones__v1_1_1ZonesLimitedTimeRetryPolicy)\n\nA retry policy for [`ZonesConnection`](/cpp/docs/reference/compute/2.19.0/classgoogle_1_1cloud_1_1compute__zones__v1_1_1ZonesConnection) based on elapsed time.\n\n### [ZonesRetryPolicy](/cpp/docs/reference/compute/2.19.0/classgoogle_1_1cloud_1_1compute__zones__v1_1_1ZonesRetryPolicy)\n\nThe retry policy for [`ZonesConnection`](/cpp/docs/reference/compute/2.19.0/classgoogle_1_1cloud_1_1compute__zones__v1_1_1ZonesConnection).\n\nStructs\n-------\n\n### [ZonesBackoffPolicyOption](/cpp/docs/reference/compute/2.19.0/structgoogle_1_1cloud_1_1compute__zones__v1_1_1ZonesBackoffPolicyOption)\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### [ZonesConnectionIdempotencyPolicyOption](/cpp/docs/reference/compute/2.19.0/structgoogle_1_1cloud_1_1compute__zones__v1_1_1ZonesConnectionIdempotencyPolicyOption)\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### [ZonesRetryPolicyOption](/cpp/docs/reference/compute/2.19.0/structgoogle_1_1cloud_1_1compute__zones__v1_1_1ZonesRetryPolicyOption)\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### MakeDefaultZonesConnectionIdempotencyPolicy()\n\n### MakeZonesConnectionRest(Options)\n\nA factory function to construct an object of type [`ZonesConnection`](/cpp/docs/reference/compute/2.19.0/classgoogle_1_1cloud_1_1compute__zones__v1_1_1ZonesConnection) 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 [ZonesClient](/cpp/docs/reference/compute/2.19.0/classgoogle_1_1cloud_1_1compute__zones__v1_1_1ZonesClient).\n\nThe optional `options` argument may be used to configure aspects of the returned [`ZonesConnection`](/cpp/docs/reference/compute/2.19.0/classgoogle_1_1cloud_1_1compute__zones__v1_1_1ZonesConnection). 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_zones_v1::ZonesPolicyOptionList`](/cpp/docs/reference/compute/2.19.0/namespacegoogle_1_1cloud_1_1compute__zones__v1)\n\n| **Note:** Unexpected options will be ignored. To log unexpected options instead, set `GOOGLE_CLOUD_CPP_ENABLE_CLOG=yes` in the environment.\n\nType Aliases\n------------\n\n### ZonesPolicyOptionList\n\n**Alias Of** : `OptionList\u003c ZonesRetryPolicyOption, ZonesBackoffPolicyOption, ZonesConnectionIdempotencyPolicyOption \u003e` \nThe options applicable to Zones."]]
