Common Request Headers
Amazon S3 REST requests include headers that contain basic information about the request. The following table describes headers that can be used by all Amazon S3 REST requests.
Header Name | Description | Required |
---|---|---|
Authorization
|
The information required for request authentication. Type: String Default: None |
Yes |
Content-Length
|
Length of the message (without the headers) according to RFC 2616. Type: String Default: None Condition: Required for PUTs and operations that load XML, such as logging and ACLs. |
Conditional |
Content-Type
|
The content type of the resource. Example:
Type: String Default: None |
No |
Date
|
The current date and time according to the requester. Example:
Type: String Default: None |
Yes |
Host
|
For path-style requests, the value is Type: String Default: None Condition: Required for HTTP 1.1 (most toolkits add this header automatically); optional for HTTP/1.0 requests. |
Conditional |
x-amz-security-token
|
The security tokens for operations that use Amazon DevPay. Each request
that uses Amazon DevPay requires two When Amazon S3 receives an authenticated request, it compares the computed signature with the provided signature. Improperly formatted multi-value headers used to calculate a signature can cause authentication issues. Type: String Default: None Condition: Required for requests that use Amazon DevPay. |
Conditional |