Public request parameters

Format

• Name: Format
• Type: String
• Required: No
• Description: Return value type. The “JSON” and “XML” types are supported, and the default value is “XML”.

Version

• Name: Version
• Type: String
• Required: Yes
• Description: API version number. It is in the “YYYY-MM-DD” format and the current version number is “2015-05-01”.

AccessKeyId

• Name: AccessKeyId
• Type: String
• Required: Yes
• Description: Access key ID.

Signature

• Name: Signature
• Type: String
• Required: Yes
• Description: message signature.

SignatureMethod

• Name: SignatureMethod
• Type: String
• Required: Yes
• Description: Signature method. Currently, only “HMAC-SHA1” is supported.

SignatureVersion

• Name: SignatureVersion
• Type: String
• Required: Yes
• Description: Signature algorithm version. The current version is “1.0”.

SignatureNonce

• Name: SignatureNonce
• Type: String
• Required: Yes
• Description: Unique random number preventing network replay attacks. You must use different random numbers for different requests.

Timestamp

• Name: Timestamp
• Type: String
• Required: Yes
• Description: Timestamp for a request. The date format follows the ISO8601 standard and uses UTC time. The following is an example of the timestamp format:YYYY-MM-DDThh:mm:ssZExample: 2013-01-10T12:00:00Z (equivalent to 1/10/2013 20:00:00 Beijing time)

Request example

https://ram.aliyuncs.com/
?Format=xml
&Version=2015-05-01
&Signature=Pc5WB8gokVn0xfeu%2FZV%2BiNM1dgI%3D
&SignatureMethod=HMAC-SHA1
&SignatureNonce=15215528852396
&SignatureVersion=1.0
&AccessKeyId=key-test
&Timestamp=2012-06-01T12:00:00Z
…

Public return parameters

　　Each time you send a request to invoke an interface, the system will return a unique identification code (“RequestId”) to you, no matter the request is successful or not.This parameter is used to identify each request.

Example

XML example

<?xml version="1.0" encoding="utf-8"?>
<!—Result root node-->
<Interface name+response>
    <!—Return request tag-->
    <RequestId>4C467B38-3910-447D-87BC-AC049166F216</RequestId>
    <!—Return result data-->
</Interface name+response>

JSON example

{
    "RequestId": "4C467B38-3910-447D-87BC-AC049166F216"
    /* Return result data*/
}