Public parameters

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

• 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.

• Name: AccessKeyId
• Type: String
• Required: Yes
• Description: AccessKey (AK) ID

• Name: Signature
• Type: String
• Required: Yes
• Description: Message signature

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

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

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

• Name: Timestamp
• Type: String
• Required: Yes
• Description: Timestamp for a request. The date format follows the ISO8601 standard and uses UTC time. The timestamp format is:

  YYYY-MM-DDThh:mm:ssZ

  For example: 2013-01-10T12:00:00Z (equivalent to 2013-01-10 20:00:00 Beijing time)

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
          …

• 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 */