Class IAMPolicyClient (2.22.0)

API Overview.

Manages Identity and Access Management (IAM) policies.

Any implementation of an API that offers access control features implements the google.iam.v1.IAMPolicy interface.

Data model

Access control is applied when a principal (user or service account), takes some action on a resource exposed by a service. Resources, identified by URI-like names, are the unit of access control specification. Service implementations can choose the granularity of access control and the supported permissions for their resources. For example one database service may allow access control to be specified only at the Table level, whereas another might allow access control to also be specified at the Column level.

Policy Structure

See google.iam.v1.Policy

This is intentionally not a CRUD style API because access control policies are created and deleted implicitly with the resources to which they are attached.

Equality

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.

Constructors

IAMPolicyClient(IAMPolicyClient const &)

Copy and move support

Parameter
Name	Description
	`IAMPolicyClient const &`

IAMPolicyClient(IAMPolicyClient &&)

Copy and move support

Parameter
Name	Description
	`IAMPolicyClient &&`

IAMPolicyClient(std::shared_ptr< IAMPolicyConnection >, Options)

Parameters
Name	Description
`connection`	`std::shared_ptr< IAMPolicyConnection >`
`opts`	`Options`

Operators

operator=(IAMPolicyClient const &)

Copy and move support

Parameter
Name	Description
	`IAMPolicyClient const &`

Returns
Type	Description
`IAMPolicyClient &`

operator=(IAMPolicyClient &&)

Copy and move support

Parameter
Name	Description
	`IAMPolicyClient &&`

Returns
Type	Description
`IAMPolicyClient &`

Functions

SetIamPolicy(google::iam::v1::SetIamPolicyRequest const &, Options)

Sets the access control policy on the specified resource.

Replaces any existing policy.

Can return NOT_FOUND, INVALID_ARGUMENT, and PERMISSION_DENIED errors.

Parameters
Name	Description
`request`	`google::iam::v1::SetIamPolicyRequest 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.iam.v1.SetIamPolicyRequest. 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
`StatusOr< google::iam::v1::Policy >`	the result of the RPC. The response message type (google.iam.v1.Policy) is mapped to a C++ class using the Protobuf mapping rules. If the request fails, the `StatusOr` contains the error details.

GetIamPolicy(google::iam::v1::GetIamPolicyRequest const &, Options)

Gets the access control policy for a resource.

Returns an empty policy if the resource exists and does not have a policy set.

Parameters
Name	Description
`request`	`google::iam::v1::GetIamPolicyRequest 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.iam.v1.GetIamPolicyRequest. 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
`StatusOr< google::iam::v1::Policy >`	the result of the RPC. The response message type (google.iam.v1.Policy) is mapped to a C++ class using the Protobuf mapping rules. If the request fails, the `StatusOr` contains the error details.

TestIamPermissions(google::iam::v1::TestIamPermissionsRequest const &, Options)

Returns permissions that a caller has on the specified resource.

If the resource does not exist, this will return an empty set of permissions, not a NOT_FOUND error.

Note: This operation is designed to be used for building permission-aware UIs and command-line tools, not for authorization checking. This operation may "fail open" without warning.

Parameters
Name	Description
`request`	`google::iam::v1::TestIamPermissionsRequest 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.iam.v1.TestIamPermissionsRequest. 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
`StatusOr< google::iam::v1::TestIamPermissionsResponse >`	the result of the RPC. The response message type (google.iam.v1.TestIamPermissionsResponse) is mapped to a C++ class using the Protobuf mapping rules. If the request fails, the `StatusOr` contains the error details.