PUT Object

After creating a bucket in OBS, you can use this operation to upload an object to the bucket.

Uploading an object adds it to a bucket. This operation requires users to have the write permission.

Note

The objects uploaded by users are stored in buckets. Only the users with the write permission can upload objects to buckets. The names of objects in the same bucket must be unique.

If objects with the same object keys exist in a specified bucket, the new objects uploaded by a user will overwrite the original objects.

To prevent data from being damaged during the transfer process, users can add Content-MD5 to request headers. After OBS receives the objects that are uploaded, it executes MD5 verification and returns an error if inconsistency is detected.

Users can specify the x-amz-acl parameter and set a permission control policy when uploading objects.

After creating a bucket in OBS, you can send a PUT Object request to upload an object to the bucket.

Versioning

If a bucket has versioning enabled, the system automatically generates a unique version ID for the requested object in this bucket and returns the version ID in response header x-amz-version-id. If a bucket has versioning suspended, the version ID of the requested object in this bucket is null. For details about bucket versioning, see section PUT Bucket versioning.

WORM

If a bucket has WORM enabled, you can configure retention policies for objects in the bucket. You can specify the x-amz-object-lock-mode and x-amz-object-lock-retain-until-date headers to configure a retention policy when you upload an object. If you do not specify these two headers but have configured a default bucket-level WORM policy, this default policy automatically applies to the object newly uploaded. You can also configure or update a WORM retention policy for an existing object, see section Configuring WORM Retention for an Object.

Note

When you enable WORM for a bucket, OBS automatically enables versioning for the bucket. WORM protects objects based on the object version IDs. Only object versions with any WORM retention policy configured will be protected. Assume that object test.txt 001 is protected by WORM. If another file with the same name is uploaded, a new object version test.txt 002 with no WORM policy configured will be generated. In such case, test.txt 002 is not protected and can be deleted. When you download an object without specifying a version ID, the current object version (test.txt 002) will be downloaded.

Request Syntax

PUT /ObjectName HTTP/1.1
 User-Agent: agent
 Host: bucketname.obs.example.com
 Accept: */*
 Content-Type: type
 Content-Length: length
 Authorization: authorization
 Date: date
 <Optional Additional Header>

<object Content>

Request Parameters

This request involves no parameters.

Request Headers

You can add optional headers to this request. For details about the optional headers, see Table 1.

Table 1 Optional request headers

Header

Description

Remarks

Content-MD5

The MD5 digest string of the message body is calculated according to the RFC 1864 standard. That is, calculate the 128-bit binary array (the message header data encrypted with MD5) first, and then use Base 64 encoding to convert the binary data to a character string.

Type: String

Example: n58IG6hfM7vqI4K0vnWpog==

Optional

x-amz-acl

Indicates the ACL applied to an object.

The value of this header is a predefined character string that is not user-configurable.

Possible values are private, public-read, public-read-write, authenticated-read, bucket-owner-read, and bucket-owner-full-control. For further details, see Table 4.

Type: String

Optional

x-amz-meta-*

This prefix is used to construct a header in an HTTP request for returning self-defined metadata. If this prefix is specified, user-defined metadata is returned in one or more response headers prefixed with x-amz-meta-.

Note: The format of the user-defined metadata header is x-amz-meta-key:value. The total size of the key and value of all user-defined metadata in the request cannot exceed 2 KB.

Type: String

Example:

x-amz-meta-test: test metadata

Optional

x-amz-website-redirect-location

If a bucket is configured as a website, redirects requests for this object to another object in the same bucket or to an external URL.

OBS stores the value of this header in the object metadata.

In the following example, the request header sets the redirection to an object (anotherPage.html) in the same bucket:

x-amz-website-redirect-location:/anotherPage.html

In the following example, the request header sets the object redirection to an external URL:

x-amz-website-redirect-location:http://www.example.com/

Type: String

Default: None

Constraint: The value must be prefixed by a slash (/), http://, or https://. The length of the value cannot exceed 2 K.

Optional

x-amz-security-token

Header field used to identify the request of a federated user. When the federal authentication function is enabled, users sending such requests are identified as federated users.

Type: string

Optional. This parameter must be carried in the request sent by federated users.

x-amz-object-lock-mode

WORM mode that will be applied to the object. Currently, only COMPLIANCE is supported. This header must be used together with x-amz-object-lock-retain-until-date.

Type: string

Example: x-amz-object-lock-mode:COMPLIANCE

No, but required when x-amz-object-lock-retain-until-date is present.

x-amz-object-lock-retain-until-date

Indicates the expiration time of the Object Lock retention. The value must be a UTC time that complies with ISO 8601, for example, 2015-07-01T04:11:15Z. This header must be used together with x-amz-object-lock-mode.

Type: string

Example: x-amz-object-lock-retain-until-date:2015-07-01T04:11:15Z

No, but required when x-amz-object-lock-mode is present.

Request Elements

This request involves no elements. Its body contains only the content of the requested object.

Response Syntax

HTTP/1.1 status_code
 Server: Server Name
 x-amz-request-id: request id
 x-amz-id-2: id
 x-reserved: amazon, aws and amazon web services are trademarks or registered trademarks of Amazon Technologies, Inc
 ETag: etag
 Date: date
 Content-Length: length
 Content-Type: type

Response Headers

This response uses common headers. For details about common response headers, see section Common Response Headers.

This response also uses optional headers, as described in Table 2.

Table 2 Optional response headers

Header

Description

x-amz-version-id

Indicates the version ID of an object. The version ID of an object will be returned if the bucket housing the object has versioning enabled.

Type: String

Response Elements

This response involves no elements.

Error Responses

No special error responses are returned. For details about error responses, see Table 1.

Sample Request

PUT /object02 HTTP/1.1
 User-Agent: Jakarta Commons-HttpClient/3.1
 Host: bucketname.obs.example.com
 Accept: */*
 Date: Sat, 03 Dec 2011 07:12:31 +0000
 Authorization: AWS BF6C09F302931425E9A7:KUxrlwKGWYpUOTgwNxIHALsRdT4=
 x-amz-meta-key: value
 Content-Length: 256

 1234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456

Sample Request for Redirecting Object Location

PUT /object02 HTTP/1.1
User-Agent: Jakarta Commons-HttpClient/3.1
Host: bucketname.obs.example.com
Accept: */*
Date: Sat, 03 Dec 2011 07:12:31 +0000
Authorization: AWS BF6C09F302931425E9A7:KUxrlwKGWYpUOTgwNxIHALsRdT4=
x-amz-meta-key: value
Content-Length: 256
x-amz-website-redirect-location: www.example.com
1234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456

Sample Response for Uploading Objects to a Bucket with No Versioning Configured

HTTP/1.1 200 OK
 Server: OBS
 x-amz-request-id: 001B21A61C6C0000013402C4616D5285
 x-amz-id-2: MDAxQjIxQTYxQzZDMDAwMDAxMzQwMkM0NjE2RDUyODVBQUFBQUFBQWJiYmJiYmJi
 x-reserved: amazon, aws and amazon web services are trademarks or registered trademarks of Amazon
 Technologies, Inc
 Content-Type: text/xml
 ETag: "33bee59f4c1f859a7aedd36779b321cf"
 Date: Sat, 03 Dec 2011 07:12:31 GMT
 Content-Length: 0

Sample Response for Uploading Objects to a Bucket with Versioning Enabled

HTTP/1.1 200 OK
 Server: OBS
 x-amz-request-id: DCD2FC9CAB78000001438AB633CF1A73
 x-amz-id-2: zvOE6GmblPrMk544Fg7BEt4LAmwdRuPx5s2qDVeGHZZJhUMmdxKsW4MzeJLkoVvX
 x-reserved: amazon, aws and amazon web services are trademarks or registered trademarks of Amazon Technologies, Inc
 Content-Type: text/xml
 ETag: "ba1f2511fc30423bdbb183fe33f3dd0f"
 x-amz-version-id: AAABQ4q2M9_c0vycq3gAAAAAVURTRkha
 Date: Mon, 13 Jan 2014 08:27:13 GMT
 Content-Length: 0

Sample Response for Uploading Objects to a Bucket with Versioning Suspended

HTTP/1.1 200 OK
 Server: OBS
 x-amz-request-id: DCD2FC9CAB78000001439A51DB2B2577
 x-amz-id-2: GcVgfeOJHx8JZHTHrRqkPsbKdB583fYbr3RBbHT6mMrBstReVILBZbMAdLiBYy1l
 x-reserved: amazon, aws and amazon web services are trademarks or registered trademarks of Amazon Technologies, Inc
 Content-Type: text/xml
 ETag: "0b55edbacf50d5086ea83ee08e55cbbd"
 Date: Thu, 13 Jan 2014 09:11:32 GMT
 Content-Length: 0

Sample Request for Uploading an Object (with a WORM Retention Policy Configured)

PUT /object01 HTTP/1.1
User-Agent: curl/7.29.0
Host: examplebucket.obs.region.example.com
Accept: */*
Date: WED, 01 Jul 2015 04:11:15 GMT
Authorization: authorization
Content-Length: 10240
x-amz-object-lock-mode:COMPLIANCE
x-amz-object-lock-retain-until-date:2022-09-24T16:10:25Z
Expect: 100-continue

[1024 Byte data content]

Sample Response for Uploading an Object (with a WORM Retention Policy Configured)

HTTP/1.1 200 OK
Server: OBS
x-amz-request-id: BF2600000164364C10805D385E1E3C67
ETag: "d41d8cd98f00b204e9800998ecf8427e"
x-amz-id-2: 32AAAWJAMAABAAAQAAEAABAAAQAAEAABCTzu4Jp2lquWuXsjnLyPPiT3cfGhqPoY
Date: WED, 01 Jul 2015 04:11:15 GMT
Content-Length: 0