This topic describes the common request and response parameters that are included in all Simple Application Server API requests and responses.

Common request parameters

Common request parameters must be included in all Simple Application Server API requests. The following table describes the common request parameters that can be used when you call Simple Application Server API operations by sending GET requests over URLs.

Parameter Type Required Description
Format String No The format in which to return the response. Valid values: JSON and XML. Default value: JSON.
Version String Yes The version number of the API, in the format of YYYY-MM-DD. Set the value to 2020-06-01.
AccessKeyId String Yes The AccessKey ID provided to you by Alibaba Cloud.
Signature String Yes The signature string of the request.
SignatureMethod String Yes The encryption method of the signature string. Set the value to HMAC-SHA1.
Timestamp String Yes The timestamp of the request. Specify the time in the ISO 8601 standard in the yyyy-MM-ddTHH:mm:ssZ format. The time must be in UTC.

Example: 2013-01-10T12:00:00Z, which indicates 20:00:00 on January 10, 2013 (UTC+8).

SignatureVersion String Yes The version of the signature encryption algorithm. Set the value to 1.0.
SignatureNonce String Yes A unique, random number used to prevent replay attacks.

You must use different numbers for multiple requests.

ResourceOwnerAccount String No The owner account (logon username) of the resource that you want to access by using this API request.
Sample requests 
https://swas.cn-hangzhou.aliyuncs.com/?Action=<API Name>
&TimeStamp=2014-05-19T10%3A33%3A56Z
&Format=xml
&AccessKeyId=testid
&SignatureMethod=HMAC-SHA1
&SignatureNonce=NwDAxvLU6tFE0DVb
&Version=2020-06-01
&SignatureVersion=1.0
&Signature=Signature
&ResourceOwnerAccount=123456

Common response parameters

Responses can be returned in the JSON or XML format. You can specify the response format in the request. The default response format is XML. Every response returns a unique RequestID regardless of whether the call is successful.
Parameter Type Description
RequestId String The ID of the request. This parameter is returned regardless of whether the call is successful.

Sample responses

Sample responses:
  • XML format 
    <?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 format 
    {
    "RequestId":"4C467B38-3910-447D-87BC-AC049166F216",
    /*Return Result Data*/
}