This topic describes common HTTP request and response headers.
Common request headers
In OSS, common HTTP request headers are used for RESTful APIs. These request headers can be used in all OSS requests. The following table lists the specific definitions of the request headers.
| Header | Type | Description |
|---|---|---|
| Authorization | String | The verification information used to verify the validity of a request.
Default value: null. Scenario: non-anonymous requests. |
| Content-Length | String | The content length of an HTTP request defined in RFC 2616.
Default value: null. Scenario: requests that need to submit data to OSS. |
| Content-Type | String | The content type of an HTTP request defined in RFC 2616.
Default value: null. Scenario: requests that need to submit data to OSS. |
| Date | String | The time in GMT stipulated in HTTP/ 1.1. Example: Wed, 05 Sep. 2012 23:00:00 GMT.
Default value: null. |
| Host | String | The value of the host to access. Format: <bucketname>.oss-cn-hangzhou.aliyuncs.com.
Default value: null. |
Common response headers
In OSS, common HTTP response headers are used for RESTful APIs. These response headers can be used by all the OSS requests. The following table lists the specific definitions of the response headers.
| Parameter | Type | Description |
|---|---|---|
| Content-Length | String | The content length of an HTTP request defined in RFC2616.
Default value: null. Scenario: requests that need to submit data to OSS. |
| Connection | Filter by value | The connection status between the client and the OSS server.
Valid values: open and close. Default value: null. |
| Date | String | The time in GMT stipulated in HTTP/ 1.1. Example: Wed, 05 Sep. 2012 23:00:00 GMT.
Default value: null. |
| ETag | String | The ETag that is created to identify the content of the object when the object is
created. If an object is created by using the PutObject request, the ETag value of
the object is the MD5 hash of the object content. If an object is created by using
another method, the ETag value of the content is the universally unique identifier
(UUID) of the object content. The ETag value of the object can be used to check whether
the object content is modified.
Default value: null. |
| Server | String | The server that generates a response.
Default value: AliyunOSS. |
| x-oss-request-id | String | The UUID that is created by the OSS server to identify the response. If you encounter
any problems when you use OSS, you can contact OSS support personnel and provide this
field to help them locate the problem.
Default value: null. |