Method: googleapis.storage.v1.objects.compose

Note: You should URL-encode object names to be path safe. You can use the url_encode and url_encode_plus functions to encode applicable characters when they appear in either the object name or query string of a request URL. If you don't url-encode your object name and your storage bucket has folders, the request will fail. For more information, see Encoding URL path parts and Cloud Storage naming considerations.

Concatenates a list of existing objects into a new object in the same bucket.

Arguments

Parameters
destinationBucket	string Required. Name of the bucket containing the source objects. The destination object is stored in this bucket.
destinationObject	string Required. Name of the new object. For information about how to URL encode object names to be path safe, see Encoding URI Path Parts.
destinationPredefinedAcl	enum Apply a predefined set of access controls to the destination object.
Enum type. Can be one of the following:
authenticatedRead	Object owner gets OWNER access, and allAuthenticatedUsers get READER access.
bucketOwnerFullControl	Object owner gets OWNER access, and project team owners get OWNER access.
bucketOwnerRead	Object owner gets OWNER access, and project team owners get READER access.
private	Object owner gets OWNER access.
projectPrivate	Object owner gets OWNER access, and project team members get access according to their roles.
publicRead	Object owner gets OWNER access, and allUsers get READER access.
ifGenerationMatch	string (int64 format) Makes the operation conditional on whether the object's current generation matches the given value. Setting to 0 makes the operation succeed only if there are no live versions of the object.
ifMetagenerationMatch	string (int64 format) Makes the operation conditional on whether the object's current metageneration matches the given value.
kmsKeyName	string Resource name of the Cloud KMS key, of the form projects/my-project/locations/global/keyRings/my-kr/cryptoKeys/my-key, that will be used to encrypt the object. Overrides the object metadata's kms_key_name value, if any.
userProject	string The project to be billed for this request. Required for Requester Pays buckets.
body	object (ComposeRequest) Required.

Raised exceptions

Exceptions
ConnectionError	In case of a network problem (such as DNS failure or refused connection).
HttpError	If the response status is >= 400 (excluding 429 and 503).
TimeoutError	If a long-running operation takes longer to finish than the specified timeout limit.
TypeError	If an operation or function receives an argument of the wrong type.
ValueError	If an operation or function receives an argument of the right type but an inappropriate value. For example, a negative timeout.

Response

If successful, the response contains an instance of Object.

Subworkflow snippet

Some fields might be optional or required. To identify required fields, refer to the API documentation.

YAML

- compose:
    call: googleapis.storage.v1.objects.compose
    args:
        destinationBucket: ...
        destinationObject: ...
        destinationPredefinedAcl: ...
        ifGenerationMatch: ...
        ifMetagenerationMatch: ...
        kmsKeyName: ...
        userProject: ...
        body:
            destination:
                acl: ...
                bucket: ...
                cacheControl: ...
                componentCount: ...
                contentDisposition: ...
                contentEncoding: ...
                contentLanguage: ...
                contentType: ...
                crc32c: ...
                customTime: ...
                customerEncryption:
                    encryptionAlgorithm: ...
                    keySha256: ...
                etag: ...
                eventBasedHold: ...
                generation: ...
                id: ...
                kind: ...
                kmsKeyName: ...
                md5Hash: ...
                mediaLink: ...
                metadata: ...
                metageneration: ...
                name: ...
                owner:
                    entity: ...
                    entityId: ...
                retentionExpirationTime: ...
                selfLink: ...
                size: ...
                storageClass: ...
                temporaryHold: ...
                timeCreated: ...
                timeDeleted: ...
                timeStorageClassUpdated: ...
                updated: ...
            kind: ...
            sourceObjects:
                generation: ...
                name: ...
                objectPreconditions:
                    ifGenerationMatch: ...
    result: composeResult

JSON

[
  {
    "compose": {
      "call": "googleapis.storage.v1.objects.compose",
      "args": {
        "destinationBucket": "...",
        "destinationObject": "...",
        "destinationPredefinedAcl": "...",
        "ifGenerationMatch": "...",
        "ifMetagenerationMatch": "...",
        "kmsKeyName": "...",
        "userProject": "...",
        "body": {
          "destination": {
            "acl": "...",
            "bucket": "...",
            "cacheControl": "...",
            "componentCount": "...",
            "contentDisposition": "...",
            "contentEncoding": "...",
            "contentLanguage": "...",
            "contentType": "...",
            "crc32c": "...",
            "customTime": "...",
            "customerEncryption": {
              "encryptionAlgorithm": "...",
              "keySha256": "..."
            },
            "etag": "...",
            "eventBasedHold": "...",
            "generation": "...",
            "id": "...",
            "kind": "...",
            "kmsKeyName": "...",
            "md5Hash": "...",
            "mediaLink": "...",
            "metadata": "...",
            "metageneration": "...",
            "name": "...",
            "owner": {
              "entity": "...",
              "entityId": "..."
            },
            "retentionExpirationTime": "...",
            "selfLink": "...",
            "size": "...",
            "storageClass": "...",
            "temporaryHold": "...",
            "timeCreated": "...",
            "timeDeleted": "...",
            "timeStorageClassUpdated": "...",
            "updated": "..."
          },
          "kind": "...",
          "sourceObjects": {
            "generation": "...",
            "name": "...",
            "objectPreconditions": {
              "ifGenerationMatch": "..."
            }
          }
        }
      },
      "result": "composeResult"
    }
  }
]