The Objects resource represents an object within Google Cloud Storage. Objects are pieces of data that you have uploaded to Google Cloud Storage. For more information, see
Object Name Requirements
.
Every object in Google Cloud Storage resides in a
bucket
. The object is owned by its original uploader, who will always retain
OWNER
permission on it.
In addition to the
acl
property, objects contain
objectAccessControls
, for use in fine-grained manipulation of an existing object's access controls.
For a list of methods for this resource, see the end of this page.
Resource representations
{
"kind": "storage#object",
"id": string,
"selfLink": string,
"name": string,
"bucket": string,
"generation": long,
"metageneration": long,
"contentType": string,
"updated": datetime,
"timeDeleted": datetime,
"storageClass": string,
"size": unsigned long,
"md5Hash": string,
"mediaLink": string,
"contentEncoding": string,
"contentDisposition": string,
"contentLanguage": string,
"cacheControl": string,
"metadata": {
(key): string
},
"acl": [
objectAccessControls Resource
],
"owner": {
"entity": string,
"entityId": string
},
"crc32c": string,
"componentCount": integer,
"etag": string
}
| Property name | Value | Description | Notes |
|---|---|---|---|
acl[]
|
list
|
Access controls on the object. | writable |
bucket
|
string
|
The name of the bucket containing this object. | |
cacheControl
|
string
|
Cache-Control directive for the object data. | writable |
componentCount
|
integer
|
Number of underlying components that make up this object. Components are accumulated by compose operations and are limited to a count of 32. | |
contentDisposition
|
string
|
Content-Disposition of the object data. | writable |
contentEncoding
|
string
|
Content-Encoding of the object data. | writable |
contentLanguage
|
string
|
Content-Language of the object data. | writable |
contentType
|
string
|
Content-Type of the object data. | writable |
crc32c
|
string
|
CRC32c checksum, as described in RFC 4960, Appendix B ; encoded using base64. | writable |
etag
|
string
|
HTTP 1.1 Entity tag for the object. | |
generation
|
long
|
The content generation of this object. Used for object versioning. | |
id
|
string
|
The ID of the object. | |
kind
|
string
|
The kind of item this is. For objects, this is always
storage#object
.
|
|
md5Hash
|
string
|
MD5 hash of the data; encoded using base64. | writable |
mediaLink
|
string
|
Media download link. | |
metadata
|
object
|
User-provided metadata, in key/value pairs. | writable |
metadata.
(key)
|
string
|
An individual metadata entry. | writable |
metageneration
|
long
|
The version of the metadata for this object at this generation. Used for preconditions and for detecting changes in metadata. A metageneration number is only meaningful in the context of a particular generation of a particular object. | |
name
|
string
|
The name of this object. Required if not specified by URL parameter. | writable |
owner
|
object
|
The owner of the object. This will always be the uploader of the object. | |
owner.
entity
|
string
|
The entity, in the form
user-
userId
.
|
|
owner.
entityId
|
string
|
The ID for the entity. | |
selfLink
|
string
|
The link to this object. | |
size
|
unsigned long
|
Content-Length of the data in bytes. | |
storageClass
|
string
|
Storage class of the object. | |
timeDeleted
|
datetime
|
Deletion time of the object in RFC 3339 format. Will be returned if and only if this version of the object has been deleted. | |
updated
|
datetime
|
Modification time of the object metadata in RFC 3339 format. |
Methods
Available methods for Objects resources are as follows:
- compose
- Concatenates a list of existing objects into a new object in the same bucket.
- copy
- Copies an object to a specified location. Optionally overrides metadata.
- delete
-
Deletes an object and its metadata. Deletions are permanent if versioning is not enabled for the bucket, or if the
generationparameter is used. - get
- Retrieves objects or their metadata.
- insert
- Stores a new object and metadata.
- list
- Retrieves a list of objects matching the criteria.
- patch
- Updates a data blob's associated metadata. This method supports patch semantics.
- update
- Updates an object's metadata.
- watchAll
- Watch for changes on all objects in a bucket.