Help Center/ Object Storage Service/ API Reference (Ankara Region)/ APIs/ Operations on Objects/ Uploading an Object - PUT

Updated on 2024-04-15 GMT+08:00

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Uploading an Object - PUT

Functions

After creating a bucket in OBS, you can use this operation to upload an object to the bucket. This operation uploads an object to a bucket. To use this operation, you must have the write permission for the bucket.

The name of each object in a bucket must be unique.

With versioning not enabled, if an object to be uploaded has the same name as an existing object in the bucket, the newly uploaded object will overwrite the existing one. To protect data from being corrupted during transmission, you can add the Content-MD5 header in the request. After receiving the uploaded object, OBS compares the provided MD5 value to the MD5 value it calculates. If the two values do not match, OBS reports an error.

You can also specify the value of the x-obs-acl parameter to configure an access control policy for the object. If the x-obs-acl parameter is not specified when an anonymous user uploads an object, the object can be accessed by all OBS users by default.

For a single upload, the size of the object to be uploaded ranges [0, 5 GB]. To upload a file greater than 5 GB, see Operations on Multipart Upload.

OBS does not have real folders. To facilitate data management, OBS provides a method to simulate a folder by adding a slash (/) to the object name, for example, test/123.jpg. You can simulate test as a folder and 123.jpg as the name of a file under the test folder. However, the object key remains test/123.jpg. Objects named in this format appear as folders on the console. When you upload an object larger than 0 in size using this format, an empty folder will be displayed on the console, but the occupied storage capacity is the actual object size.

Differences Between PUT and POST Methods

Parameters are passed through the request header if the PUT method is used to upload objects; if the POST method is used to upload objects, parameters are passed through the form field in the message body.

With the PUT method, you need to specify the object name in the URL, but object name is not required with the POST method, which uses the bucket domain name as the URL. Request lines of these two methods are given as follows:

PUT /ObjectName HTTP/1.1

POST / HTTP/1.1

In a PUT request, if you write the message body in POST format, the object uploaded to OBS will be displayed in a form.

For details about POST upload, see Uploading an Object - POST.

Versioning

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

Request Syntax

    
         PUT /ObjectName HTTP/1.1 
Host: bucketname.obs.region.example.com
Content-Type: application/xml 
Content-Length: length
Authorization: authorization
Date: date
<Optional Additional Header> 
<object Content>

Request Parameters

This request contains no parameters.

Request Headers

This request uses common headers. For details, see Table 3. The request can use additional headers, as listed in Table 1.

OBS supports the six HTTP request headers: Cache-Control, Expires, Content-Encoding, Content-Disposition, Content-Type, and Content-Language. If these headers are carried in an object upload request, their values are saved. You can also call the metadata modification API, provided by OBS, to change the values of the six headers. When the object is downloaded or queried, the saved values are set for corresponding HTTP headers and returned to the client.

**Table 1** Request headers
Header	Description	Mandatory
Content-MD5	Base64-encoded 128-bit MD5 digest of the message according to RFC 1864. Type: string Example: n58IG6hfM7vqI4K0vnWpog==	No
x-obs-acl	This header can be added to set access control policies for objects when creating the objects. The access control policies are the predefined common policies, including private, public-read, public-read-write. Type: string Note: This header is a predefined policy expressed in a character string. Example: x-obs-acl: public-read	No
x-obs-grant-read	When creating an object, you can use this header to grant all users in an account the permissions to read the object and obtain the object metadata. Type: string Example: x-obs-grant-read: id=domainID. If multiple accounts are authorized, separate them with commas (,).	No
x-obs-grant-read-acp	When creating an object, you can use this header to grant all users in an account the permissions to obtain the object ACL. Type: string Example: x-obs-grant-read-acp: id=domainID. If multiple accounts are authorized, separate them with commas (,).	No
x-obs-grant-write-acp	When creating an object, you can use this header to grant all users in an account the permission to write the object ACL. Type: string Example: x-obs-grant-write-acp: id=domainID. If multiple accounts are authorized, separate them with commas (,).	No
x-obs-grant-full-control	When creating an object, you can use this header to grant all users in an account the permissions to read the object, obtain the object metadata and ACL, and write the object ACL. Type: string Example: x-obs-grant-full-control: id=domainID. If multiple accounts are authorized, separate them with commas (,).	No
x-obs-meta-*	When creating an object, you can use a header starting with x-obs-meta- to define object metadata in an HTTP request. The user-defined metadata will be returned in the response when you retrieve the object or query the object metadata. Type: string Example: x-obs-meta-test: test metadata Constraint: Both user-defined metadata keys and their values must conform to US-ASCII standards.	No
x-obs-website-redirect-location	If a bucket is configured with the static website hosting function, it will redirect 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-obs-website-redirect-location:/anotherPage.html In the following example, the request header sets the object redirection to an external URL: x-obs-website-redirect-location:http://www.example.com/ Type: string Default value: none Constraint: The value must be prefixed by a slash (/), http://, or https://. The length of the value cannot exceed 2 KB.	No
success-action-redirect	Indicates the address (URL) to which a successfully responded request is redirected. If the value is valid and the request is successful, OBS returns status code 303. Location contains success_action_redirect as well as the bucket name, object name, and object ETag. If this parameter value is invalid, OBS ignores this parameter. In such case, the Location header is the object address, and OBS returns the response code based on whether the operation succeeds or fails. Type: string	No
x-obs-expires	Specifies when an object expires. It is measured in days. Once the object expires, it is automatically deleted. (The validity calculates from the object's creation time.) You can configure this field when uploading an object or modify this field by using the metadata modification API after the object is uploaded. Type: integer Example: x-obs-expires:3	No

Request Elements

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

Response Syntax

    
         HTTP/1.1 status_code
Content-Length: length
Content-Type: type

Response Headers

The response to the request uses common headers. For details, see Table 1.

In addition to the common response headers, the headers listed in Table 2 may be used.

**Table 2** Additional response headers
Header	Description
x-obs-version-id	Object version ID. If versioning is enabled for the bucket, the object version ID will be returned. Type: string

Response Elements

This response contains no elements.

Error Responses

No special error responses are returned. For details about error responses, see Table 2.

Sample Request: Uploading an Object

    
         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: OBS H4IPJX0TQTHTHEBQQCEC:gYqplLq30dEX7GMi2qFWyjdFsyw=
Content-Length: 10240
Expect: 100-continue

[1024 Byte data content]

Sample Response: Uploading an Object

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

Sample Request: Uploading an Object (with the ACL Configured)

    
         PUT /object01 HTTP/1.1
User-Agent: curl/7.29.0
Host: examplebucket.obs.region.example.com
Accept: */*
Date: WED, 01 Jul 2015 04:13:55 GMT
x-obs-grant-read:id=52f24s3593as5730ea4f722483579ai7,id=a93fcas852f24s3596ea8366794f7224
Authorization: OBS H4IPJX0TQTHTHEBQQCEC:gYqplLq30dEX7GMi2qFWyjdFsyw=
Content-Length: 10240
Expect: 100-continue

[1024 Byte data content]

Sample Response: Uploading an Object (with the ACL Configured)

    
         HTTP/1.1 200 OK
Server: OBS
x-obs-request-id: BB7800000164845759E4F3B39ABEE55E
ETag: "d41d8cd98f00b204e9800998ecf8427e"
x-obs-id-2: 32AAAQAAEAABAAAQAAEAABAAAQAAEAABCSReVRNuas0knI+Y96iXrZA7BLUgj06Z
Date: WED, 01 Jul 2015 04:13:55 GMT
Content-Length: 0

Sample Request: Uploading an Object to a Versioned Bucket

    
         PUT /object01 HTTP/1.1
User-Agent: curl/7.29.0
Host: examplebucket.obs.region.example.com
Accept: */*
Date: WED, 01 Jul 2015 04:17:12 GMT
Authorization: OBS H4IPJX0TQTHTHEBQQCEC:uFVJhp/dJqj/CJIVLrSZ0gpw3ng=
Content-Length: 10240
Expect: 100-continue

[1024 Byte data content]

Sample Response: Uploading an Object to a Versioned Bucket

    
         HTTP/1.1 200 OK
Server: OBS
x-obs-request-id: DCD2FC9CAB78000001439A51DB2B2577
ETag: "d41d8cd98f00b204e9800998ecf8427e"
X-OBS-ID-2: GcVgfeOJHx8JZHTHrRqkPsbKdB583fYbr3RBbHT6mMrBstReVILBZbMAdLiBYy1l
Date: WED, 01 Jul 2015 04:17:12 GMT
x-obs-version-id: AAABQ4q2M9_c0vycq3gAAAAAVURTRkha
Content-Length: 0

Sample Request: Uploading an Object (with Its MD5 Specified)

    
         PUT /object01 HTTP/1.1
User-Agent: curl/7.29.0
Host: examplebucket.obs.region.example.com
Accept: */*
Date: WED, 01 Jul 2015 04:17:50 GMT
Authorization: OBS H4IPJX0TQTHTHEBQQCEC:uFVJhp/dJqj/CJIVLrSZ0gpw3ng=
Content-Length: 10
Content-MD5: 6Afx/PgtEy+bsBjKZzihnw==
Expect: 100-continue

1234567890

Sample Response: Uploading an Object (with Its MD5 Specified)

    
         HTTP/1.1 200 OK
Server: OBS
x-obs-request-id: BB7800000164B165971F91D82217D105
X-OBS-ID-2: 32AAAUJAIAABAAAQAAEAABAAAQAAEAABCSEKhBpS4BB3dSMNqMtuNxQDD9XvOw5h
ETag: "1072e1b96b47d7ec859710068aa70d57"
Date: WED, 01 Jul 2015 04:17:50 GMT
Content-Length: 0

Sample Request: Uploading an Object (with Website Hosting Configured)

If static website hosting has been configured for a bucket, you can configure parameters as follows when you upload an object. Then, users will be redirected when they download the object.

    
         PUT /object01 HTTP/1.1
User-Agent: curl/7.29.0
Host: examplebucket.obs.region.example.com
Accept: */*
Date: WED, 01 Jul 2015 04:17:12 GMT
x-obs-website-redirect-location: http://www.example.com/
Authorization: OBS H4IPJX0TQTHTHEBQQCEC:uFVJhp/dJqj/CJIVLrSZ0gpw3ng=
Content-Length: 10240
Expect: 100-continue

[1024 Byte data content]

Sample Response: Uploading an Object (with Website Hosting Configured)

    
         HTTP/1.1 200 OK
Server: OBS
x-obs-request-id: DCD2FC9CAB78000001439A51DB2B2577
x-obs-id-2: 32AAAUJAIAABAAAQAAEAABAAAQAAEAABCTmxB5ufMj/7/GzP8TFwTbp33u0xhn2Z
ETag: "1072e1b96b47d7ec859710068aa70d57"
Date: WED, 01 Jul 2015 04:17:12 GMT
x-obs-version-id: AAABQ4q2M9_c0vycq3gAAAAAVURTRkha
Content-Length: 0

Sample Request: Uploading an Object Using a Signed URL

PUT /object02?AccessKeyId=H4IPJX0TQTHTHEBQQCEC&Expires=1532688887&Signature=EQmDuOhaLUrzrzRNZxwS72CXeXM%3D HTTP/1.1
User-Agent: curl/7.29.0
Host: examplebucket.obs.region.example.com
Accept: */*
Content-Length: 1024

[1024 Byte data content]

Sample Response: Uploading an Object Using a Signed URL

    
         HTTP/1.1 200 OK
Server: OBS
x-obs-request-id: DCD2FC9CAB78000001439A51DB2B2577
x-obs-id-2: 32AAAUJAIAABAAAQAAEAABAAAQAAEAABCTmxB5ufMj/7/GzP8TFwTbp33u0xhn2Z
ETag: "1072e1b96b47d7ec859710068aa70d57"
Date: Fri, 27 Jul 2018 10:52:31 GMT
x-obs-version-id: AAABQ4q2M9_c0vycq3gAAAAAVURTRkha
Content-Length: 0