Instances of this class created via copy-construction or copy-assignment always compare equal. Instances created with equal std::shared_ptr<*Connection> objects compare equal. Objects that compare equal share the same underlying resources.
Performance
Creating a new instance of this class is a relatively expensive operation, new objects establish new connections to the service. In contrast, copy-construction, move-construction, and the corresponding assignment operations are relatively efficient as the copies share all underlying resources.
Thread Safety
Concurrent access to different instances of this class, even if they compare equal, is guaranteed to work. Two or more threads operating on the same instance of this class is not guaranteed to work. Since copy-construction and move-construction is a relatively efficient operation, consider using such a copy when using this class from multiple threads.
Unary RPCs, such as the one wrapped by this function, receive a single request proto message which includes all the inputs for the RPC. In this case, the proto message is a google.appengine.v1.ListServicesRequest. Proto messages are converted to C++ classes by Protobuf, using the Protobuf mapping rules.
opts
Options
Optional. Override the class-level options, such as retry and backoff policies.
Returns
Type
Description
StreamRange< google::appengine::v1::Service >
a StreamRange to iterate of the results. See the documentation of this type for details. In brief, this class has begin() and end() member functions returning a iterator class meeting the input iterator requirements. The value type for this iterator is a StatusOr as the iteration may fail even after some values are retrieved successfully, for example, if there is a network disconnect. An empty set of results does not indicate an error, it indicates that there are no resources meeting the request criteria. On a successful iteration the StatusOr<T> contains elements of type google.appengine.v1.Service, or rather, the C++ class generated by Protobuf from that type. Please consult the Protobuf documentation for details on the Protobuf mapping rules.
Gets the current configuration of the specified service.
Parameters
Name
Description
request
google::appengine::v1::GetServiceRequest const &
Unary RPCs, such as the one wrapped by this function, receive a single request proto message which includes all the inputs for the RPC. In this case, the proto message is a google.appengine.v1.GetServiceRequest. Proto messages are converted to C++ classes by Protobuf, using the Protobuf mapping rules.
opts
Options
Optional. Override the class-level options, such as retry and backoff policies.
Unary RPCs, such as the one wrapped by this function, receive a single request proto message which includes all the inputs for the RPC. In this case, the proto message is a google.appengine.v1.UpdateServiceRequest. Proto messages are converted to C++ classes by Protobuf, using the Protobuf mapping rules.
opts
Options
Optional. Override the class-level options, such as retry and backoff policies.
A future that becomes satisfied when the LRO (Long Running Operation) completes or the polling policy in effect for this call is exhausted. The future is satisfied with an error if the LRO completes with an error or the polling policy is exhausted. In this case the StatusOr returned by the future contains the error. If the LRO completes successfully the value of the future contains the LRO's result. For this RPC the result is a google.appengine.v1.Service proto message. The C++ class representing this message is created by Protobuf, using the Protobuf mapping rules.
Unary RPCs, such as the one wrapped by this function, receive a single request proto message which includes all the inputs for the RPC. In this case, the proto message is a google.appengine.v1.DeleteServiceRequest. Proto messages are converted to C++ classes by Protobuf, using the Protobuf mapping rules.
opts
Options
Optional. Override the class-level options, such as retry and backoff policies.
A future that becomes satisfied when the LRO (Long Running Operation) completes or the polling policy in effect for this call is exhausted. The future is satisfied with an error if the LRO completes with an error or the polling policy is exhausted. In this case the StatusOr returned by the future contains the error. If the LRO completes successfully the value of the future contains the LRO's result. For this RPC the result is a google.appengine.v1.OperationMetadataV1 proto message. The C++ class representing this message is created by Protobuf, using the Protobuf mapping rules.
[[["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 2025-08-14 UTC."],[[["\u003cp\u003eThe latest version of the App Engine ServicesClient is 2.37.0-rc, which can be found along with links to other versions ranging down to 2.11.0.\u003c/p\u003e\n"],["\u003cp\u003eThis ServicesClient class manages services of an application and has a few methods including ListServices, GetService, UpdateService and DeleteService.\u003c/p\u003e\n"],["\u003cp\u003eInstances of this class are created through copy-construction or copy-assignment, which ensures they will compare as equal and share underlying resources, as new objects are expensive and establish new service connections.\u003c/p\u003e\n"],["\u003cp\u003eConcurrent access to different instances of this class is guaranteed to work, however, two or more threads operating on the same instance may not work.\u003c/p\u003e\n"],["\u003cp\u003eThe ListServices function provides a StreamRange to iterate through results, GetService returns a StatusOr with the result or error details, and UpdateService and DeleteService returns a future that is satisfied when the long running operation completes.\u003c/p\u003e\n"]]],[],null,["# Class ServicesClient (2.16.0)\n\nVersion 2.16.0keyboard_arrow_down\n\n- [2.42.0-rc (latest)](/cpp/docs/reference/appengine/latest/classgoogle_1_1cloud_1_1appengine__v1_1_1ServicesClient)\n- [2.41.0](/cpp/docs/reference/appengine/2.41.0/classgoogle_1_1cloud_1_1appengine__v1_1_1ServicesClient)\n- [2.40.0](/cpp/docs/reference/appengine/2.40.0/classgoogle_1_1cloud_1_1appengine__v1_1_1ServicesClient)\n- [2.39.0](/cpp/docs/reference/appengine/2.39.0/classgoogle_1_1cloud_1_1appengine__v1_1_1ServicesClient)\n- [2.38.0](/cpp/docs/reference/appengine/2.38.0/classgoogle_1_1cloud_1_1appengine__v1_1_1ServicesClient)\n- [2.37.0](/cpp/docs/reference/appengine/2.37.0/classgoogle_1_1cloud_1_1appengine__v1_1_1ServicesClient)\n- [2.36.0](/cpp/docs/reference/appengine/2.36.0/classgoogle_1_1cloud_1_1appengine__v1_1_1ServicesClient)\n- [2.35.0](/cpp/docs/reference/appengine/2.35.0/classgoogle_1_1cloud_1_1appengine__v1_1_1ServicesClient)\n- [2.34.0](/cpp/docs/reference/appengine/2.34.0/classgoogle_1_1cloud_1_1appengine__v1_1_1ServicesClient)\n- [2.33.0](/cpp/docs/reference/appengine/2.33.0/classgoogle_1_1cloud_1_1appengine__v1_1_1ServicesClient)\n- [2.32.0](/cpp/docs/reference/appengine/2.32.0/classgoogle_1_1cloud_1_1appengine__v1_1_1ServicesClient)\n- [2.31.0](/cpp/docs/reference/appengine/2.31.0/classgoogle_1_1cloud_1_1appengine__v1_1_1ServicesClient)\n- [2.30.0](/cpp/docs/reference/appengine/2.30.0/classgoogle_1_1cloud_1_1appengine__v1_1_1ServicesClient)\n- [2.29.0](/cpp/docs/reference/appengine/2.29.0/classgoogle_1_1cloud_1_1appengine__v1_1_1ServicesClient)\n- [2.28.0](/cpp/docs/reference/appengine/2.28.0/classgoogle_1_1cloud_1_1appengine__v1_1_1ServicesClient)\n- [2.27.0](/cpp/docs/reference/appengine/2.27.0/classgoogle_1_1cloud_1_1appengine__v1_1_1ServicesClient)\n- [2.26.0](/cpp/docs/reference/appengine/2.26.0/classgoogle_1_1cloud_1_1appengine__v1_1_1ServicesClient)\n- [2.25.1](/cpp/docs/reference/appengine/2.25.1/classgoogle_1_1cloud_1_1appengine__v1_1_1ServicesClient)\n- [2.24.0](/cpp/docs/reference/appengine/2.24.0/classgoogle_1_1cloud_1_1appengine__v1_1_1ServicesClient)\n- [2.23.0](/cpp/docs/reference/appengine/2.23.0/classgoogle_1_1cloud_1_1appengine__v1_1_1ServicesClient)\n- [2.22.1](/cpp/docs/reference/appengine/2.22.1/classgoogle_1_1cloud_1_1appengine__v1_1_1ServicesClient)\n- [2.21.0](/cpp/docs/reference/appengine/2.21.0/classgoogle_1_1cloud_1_1appengine__v1_1_1ServicesClient)\n- [2.20.0](/cpp/docs/reference/appengine/2.20.0/classgoogle_1_1cloud_1_1appengine__v1_1_1ServicesClient)\n- [2.19.0](/cpp/docs/reference/appengine/2.19.0/classgoogle_1_1cloud_1_1appengine__v1_1_1ServicesClient)\n- [2.18.0](/cpp/docs/reference/appengine/2.18.0/classgoogle_1_1cloud_1_1appengine__v1_1_1ServicesClient)\n- [2.17.0](/cpp/docs/reference/appengine/2.17.0/classgoogle_1_1cloud_1_1appengine__v1_1_1ServicesClient)\n- [2.16.0](/cpp/docs/reference/appengine/2.16.0/classgoogle_1_1cloud_1_1appengine__v1_1_1ServicesClient)\n- [2.15.1](/cpp/docs/reference/appengine/2.15.1/classgoogle_1_1cloud_1_1appengine__v1_1_1ServicesClient)\n- [2.14.0](/cpp/docs/reference/appengine/2.14.0/classgoogle_1_1cloud_1_1appengine__v1_1_1ServicesClient)\n- [2.13.0](/cpp/docs/reference/appengine/2.13.0/classgoogle_1_1cloud_1_1appengine__v1_1_1ServicesClient)\n- [2.12.0](/cpp/docs/reference/appengine/2.12.0/classgoogle_1_1cloud_1_1appengine__v1_1_1ServicesClient)\n- [2.11.0](/cpp/docs/reference/appengine/2.11.0/classgoogle_1_1cloud_1_1appengine__v1_1_1ServicesClient) \nManages services of an application. \n\n###### Equality\n\nInstances of this class created via copy-construction or copy-assignment always compare equal. Instances created with equal `std::shared_ptr\u003c*Connection\u003e` objects compare equal. Objects that compare equal share the same underlying resources.\n\n###### Performance\n\nCreating a new instance of this class is a relatively expensive operation, new objects establish new connections to the service. In contrast, copy-construction, move-construction, and the corresponding assignment operations are relatively efficient as the copies share all underlying resources.\n\n###### Thread Safety\n\nConcurrent access to different instances of this class, even if they compare equal, is guaranteed to work. Two or more threads operating on the same instance of this class is not guaranteed to work. Since copy-construction and move-construction is a relatively efficient operation, consider using such a copy when using this class from multiple threads.\n\nConstructors\n------------\n\n### ServicesClient(ServicesClient const \\&)\n\nCopy and move support\n\n### ServicesClient(ServicesClient \\&\\&)\n\nCopy and move support\n\n### ServicesClient(std::shared_ptr\\\u003c ServicesConnection \\\u003e, Options)\n\nOperators\n---------\n\n### operator=(ServicesClient const \\&)\n\nCopy and move support\n\n### operator=(ServicesClient \\&\\&)\n\nCopy and move support\n\nFunctions\n---------\n\n### ListServices(google::appengine::v1::ListServicesRequest, Options)\n\nLists all the services in the application.\n\n### GetService(google::appengine::v1::GetServiceRequest const \\&, Options)\n\nGets the current configuration of the specified service.\n\n### UpdateService(google::appengine::v1::UpdateServiceRequest const \\&, Options)\n\nUpdates the configuration of the specified service.\n\n### DeleteService(google::appengine::v1::DeleteServiceRequest const \\&, Options)\n\nDeletes the specified service and all enclosed versions."]]
