# Firebase App Hosting API . projects . locations . backends . rollouts

## Instance Methods

Close httplib2 connections.

Creates a new rollout for a backend.

Gets information about a rollout.

Lists rollouts for a backend.

Retrieves the next page of results.

### Method Details

`close()`

    Close httplib2 connections.

`create(parent, body=None, requestId=None, rolloutId=None, validateOnly=None, x__xgafv=None)`

    Creates a new rollout for a backend.

    Args:
      parent: string, Required. The parent backend in the format: `projects/{project}/locations/{locationId}/backends/{backendId}`. (required)
      body: object, The request body.
        The object takes the form of:

    { # A single rollout of a build for a backend.
      "annotations": { # Optional. Unstructured key value map that may be set by external tools to store and arbitrary metadata. They are not queryable and should be preserved when modifying objects.
        "a_key": "A String",
      },
      "build": "A String", # Required. Immutable. The name of a build that already exists. It doesn't have to be built; a rollout will wait for a build to be ready before updating traffic.
      "createTime": "A String", # Output only. Time at which the rollout was created.
      "deleteTime": "A String", # Output only. Time at which the rollout was deleted.
      "displayName": "A String", # Optional. Human-readable name. 63 character limit.
      "error": { # The `Status` type defines a logical error model that is suitable for different programming environments, including REST APIs and RPC APIs. It is used by [gRPC](https://github.com/grpc). Each `Status` message contains three pieces of data: error code, error message, and error details. You can find out more about this error model and how to work with it in the [API Design Guide](https://cloud.google.com/apis/design/errors). # Output only. A status and (human readable) error message for the rollout, if in a `FAILED` state.
        "code": 42, # The status code, which should be an enum value of google.rpc.Code.
        "details": [ # A list of messages that carry the error details. There is a common set of message types for APIs to use.
          {
            "a_key": "", # Properties of the object. Contains field @type with type URL.
          },
        ],
        "message": "A String", # A developer-facing error message, which should be in English. Any user-facing error message should be localized and sent in the google.rpc.Status.details field, or localized by the client.
      },
      "etag": "A String", # Output only. Server-computed checksum based on other values; may be sent on update or delete to ensure operation is done on expected resource.
      "labels": { # Optional. Unstructured key value map that can be used to organize and categorize objects.
        "a_key": "A String",
      },
      "name": "A String", # Identifier. The resource name of the rollout. Format: `projects/{project}/locations/{locationId}/backends/{backendId}/rollouts/{rolloutId}`.
      "reconciling": True or False, # Output only. A field that, if true, indicates that the Rollout currently has an LRO.
      "state": "A String", # Output only. The state of the rollout.
      "uid": "A String", # Output only. System-assigned, unique identifier.
      "updateTime": "A String", # Output only. Time at which the rollout was last updated.
    }

      requestId: string, Optional. An optional request ID to identify requests. Specify a unique request ID so that if you must retry your request, the server will know to ignore the request if it has already been completed. The server will guarantee that for at least 60 minutes since the first request. For example, consider a situation where you make an initial request and the request times out. If you make the request again with the same request ID, the server can check if original operation with the same request ID was received, and if so, will ignore the second request. This prevents clients from accidentally creating duplicate commitments. The request ID must be a valid UUID with the exception that zero UUID is not supported (00000000-0000-0000-0000-000000000000).
      rolloutId: string, Optional. Desired ID of the rollout being created.
      validateOnly: boolean, Optional. Indicates that the request should be validated and default values populated, without persisting the request or creating any resources.
      x__xgafv: string, V1 error format.
        Allowed values
          1 - v1 error format
          2 - v2 error format

    Returns:
      An object of the form:

        { # This resource represents a long-running operation that is the result of a network API call.
      "done": True or False, # If the value is `false`, it means the operation is still in progress. If `true`, the operation is completed, and either `error` or `response` is available.
      "error": { # The `Status` type defines a logical error model that is suitable for different programming environments, including REST APIs and RPC APIs. It is used by [gRPC](https://github.com/grpc). Each `Status` message contains three pieces of data: error code, error message, and error details. You can find out more about this error model and how to work with it in the [API Design Guide](https://cloud.google.com/apis/design/errors). # The error result of the operation in case of failure or cancellation.
        "code": 42, # The status code, which should be an enum value of google.rpc.Code.
        "details": [ # A list of messages that carry the error details. There is a common set of message types for APIs to use.
          {
            "a_key": "", # Properties of the object. Contains field @type with type URL.
          },
        ],
        "message": "A String", # A developer-facing error message, which should be in English. Any user-facing error message should be localized and sent in the google.rpc.Status.details field, or localized by the client.
      },
      "metadata": { # Service-specific metadata associated with the operation. It typically contains progress information and common metadata such as create time. Some services might not provide such metadata. Any method that returns a long-running operation should document the metadata type, if any.
        "a_key": "", # Properties of the object. Contains field @type with type URL.
      },
      "name": "A String", # The server-assigned name, which is only unique within the same service that originally returns it. If you use the default HTTP mapping, the `name` should be a resource name ending with `operations/{unique_id}`.
      "response": { # The normal, successful response of the operation. If the original method returns no data on success, such as `Delete`, the response is `google.protobuf.Empty`. If the original method is standard `Get`/`Create`/`Update`, the response should be the resource. For other methods, the response should have the type `XxxResponse`, where `Xxx` is the original method name. For example, if the original method name is `TakeSnapshot()`, the inferred response type is `TakeSnapshotResponse`.
        "a_key": "", # Properties of the object. Contains field @type with type URL.
      },
    }

`get(name, x__xgafv=None)`

    Gets information about a rollout.

    Args:
      name: string, Required. Name of the resource in the format: `projects/{project}/locations/{locationId}/backends/{backendId}/rollouts/{rolloutId}`. (required)
      x__xgafv: string, V1 error format.
        Allowed values
          1 - v1 error format
          2 - v2 error format

    Returns:
      An object of the form:

        { # A single rollout of a build for a backend.
      "annotations": { # Optional. Unstructured key value map that may be set by external tools to store and arbitrary metadata. They are not queryable and should be preserved when modifying objects.
        "a_key": "A String",
      },
      "build": "A String", # Required. Immutable. The name of a build that already exists. It doesn't have to be built; a rollout will wait for a build to be ready before updating traffic.
      "createTime": "A String", # Output only. Time at which the rollout was created.
      "deleteTime": "A String", # Output only. Time at which the rollout was deleted.
      "displayName": "A String", # Optional. Human-readable name. 63 character limit.
      "error": { # The `Status` type defines a logical error model that is suitable for different programming environments, including REST APIs and RPC APIs. It is used by [gRPC](https://github.com/grpc). Each `Status` message contains three pieces of data: error code, error message, and error details. You can find out more about this error model and how to work with it in the [API Design Guide](https://cloud.google.com/apis/design/errors). # Output only. A status and (human readable) error message for the rollout, if in a `FAILED` state.
        "code": 42, # The status code, which should be an enum value of google.rpc.Code.
        "details": [ # A list of messages that carry the error details. There is a common set of message types for APIs to use.
          {
            "a_key": "", # Properties of the object. Contains field @type with type URL.
          },
        ],
        "message": "A String", # A developer-facing error message, which should be in English. Any user-facing error message should be localized and sent in the google.rpc.Status.details field, or localized by the client.
      },
      "etag": "A String", # Output only. Server-computed checksum based on other values; may be sent on update or delete to ensure operation is done on expected resource.
      "labels": { # Optional. Unstructured key value map that can be used to organize and categorize objects.
        "a_key": "A String",
      },
      "name": "A String", # Identifier. The resource name of the rollout. Format: `projects/{project}/locations/{locationId}/backends/{backendId}/rollouts/{rolloutId}`.
      "reconciling": True or False, # Output only. A field that, if true, indicates that the Rollout currently has an LRO.
      "state": "A String", # Output only. The state of the rollout.
      "uid": "A String", # Output only. System-assigned, unique identifier.
      "updateTime": "A String", # Output only. Time at which the rollout was last updated.
    }

`list(parent, filter=None, orderBy=None, pageSize=None, pageToken=None, showDeleted=None, x__xgafv=None)`

    Lists rollouts for a backend.

    Args:
      parent: string, Required. The parent backend in the format: `projects/{project}/locations/{locationId}/backends/{backendId}`. (required)
      filter: string, Optional. A filter to narrow down results to a preferred subset. Learn more about filtering in Google's [AIP 160 standard](https://google.aip.dev/160).
      orderBy: string, Optional. Hint for how to order the results. Supported fields are `name` and `createTime`. To specify descending order, append a `desc` suffix.
      pageSize: integer, Optional. The maximum number of results to return. If not set, the service selects a default.
      pageToken: string, Optional. A page token received from the nextPageToken field in the response. Send that page token to receive the subsequent page.
      showDeleted: boolean, Optional. If true, the request returns soft-deleted resources that haven't been fully-deleted yet.
      x__xgafv: string, V1 error format.
        Allowed values
          1 - v1 error format
          2 - v2 error format

    Returns:
      An object of the form:

        { # Message for response to list rollouts.
      "nextPageToken": "A String", # A token identifying the next page of results the server should return.
      "rollouts": [ # The list of rollouts.
        { # A single rollout of a build for a backend.
          "annotations": { # Optional. Unstructured key value map that may be set by external tools to store and arbitrary metadata. They are not queryable and should be preserved when modifying objects.
            "a_key": "A String",
          },
          "build": "A String", # Required. Immutable. The name of a build that already exists. It doesn't have to be built; a rollout will wait for a build to be ready before updating traffic.
          "createTime": "A String", # Output only. Time at which the rollout was created.
          "deleteTime": "A String", # Output only. Time at which the rollout was deleted.
          "displayName": "A String", # Optional. Human-readable name. 63 character limit.
          "error": { # The `Status` type defines a logical error model that is suitable for different programming environments, including REST APIs and RPC APIs. It is used by [gRPC](https://github.com/grpc). Each `Status` message contains three pieces of data: error code, error message, and error details. You can find out more about this error model and how to work with it in the [API Design Guide](https://cloud.google.com/apis/design/errors). # Output only. A status and (human readable) error message for the rollout, if in a `FAILED` state.
            "code": 42, # The status code, which should be an enum value of google.rpc.Code.
            "details": [ # A list of messages that carry the error details. There is a common set of message types for APIs to use.
              {
                "a_key": "", # Properties of the object. Contains field @type with type URL.
              },
            ],
            "message": "A String", # A developer-facing error message, which should be in English. Any user-facing error message should be localized and sent in the google.rpc.Status.details field, or localized by the client.
          },
          "etag": "A String", # Output only. Server-computed checksum based on other values; may be sent on update or delete to ensure operation is done on expected resource.
          "labels": { # Optional. Unstructured key value map that can be used to organize and categorize objects.
            "a_key": "A String",
          },
          "name": "A String", # Identifier. The resource name of the rollout. Format: `projects/{project}/locations/{locationId}/backends/{backendId}/rollouts/{rolloutId}`.
          "reconciling": True or False, # Output only. A field that, if true, indicates that the Rollout currently has an LRO.
          "state": "A String", # Output only. The state of the rollout.
          "uid": "A String", # Output only. System-assigned, unique identifier.
          "updateTime": "A String", # Output only. Time at which the rollout was last updated.
        },
      ],
      "unreachable": [ # Locations that could not be reached.
        "A String",
      ],
    }

`list_next(previous_request, previous_response)`

    Retrieves the next page of results.

    Args:
      previous_request: The request for the previous page. (required)
      previous_response: The response from the request for the previous page. (required)

    Returns:
      A request object that you can call 'execute()' on to request the next
      page. Returns None if there are no more items in the collection.