The following list of request parameters only lists interface request parameters and some public parameters, For a complete list of public parameters see public request parameters.

Parameter name	Required	Allow NULL	Type	Description
Action	Yes	No	String	Public parameter, The value of this interface: DescribeCerts
Version	Yes	No	String	Public parameter, The value of this interface: 2018-03-17
Region	No	No	String	Public parameter,Regional information A list of supported geographies is available through the DescribeRegions interface
Offset	No	No	Uint64	Data offset. Default: 0. Example: 0
Limit	No	No	Uint64	Number of certificates returned. Default: 20 Example: 20
SearchKey	No	No	String	Search keyword Example: lbname
CertType	No	No	String	Certificate type (CA: Client certificate; SVR: Server certificate) Example: SVR
CertIdList	No	No	Array of String	Certificate ID list Example: ["GpW7fKkH"]
WithCert	No	No	Bool	Whether to obtain certificate content at the same time Example: true

3. Output Parameters

Parameter name	Type	Description
CertList	Array of CertList	Certificate list Example:View
TotalCount	Uint64	Total certificates Example: 200
RequestId	String	Unique request id, Each request will return. The RequestId of the request needs to be provided when locating the problem.

4. Error Code

The following lists only the error codes related to the interface business logic, For other error codes, see public ErrorCode.

Error Code	Description
UnauthorizedOperation	Unauthorized operation
FailedOperation	Failed to operate.
InternalError	Internal Error
InvalidParameterValue	Incorrect parameter value
InvalidParameterValue.Duplicate	Duplicate parameter values.
InvalidParameter	Wrong parameter.
MissingParameter	Missing parameter error.
InvalidParameterValue.Length	Invalid parameter length.