Response

Status Code

After sending a request, you will receive a response that includes a status code, response header, and response body.

A status code is a group of digits, ranging from 1xx to 5xx. It indicates the status of a request. For details, see Status Codes.

For example, if status code 201 is returned for calling the API used to obtain a user token, the request is successful.

Response Header

Similar to a request, a response also has a header, for example, content-type.

Figure 1 shows the response header fields for the API used to obtain a user token. The x-subject-token header field is the desired user token. This token can then be used to authenticate requests for calling other APIs.

Figure 1 Header fields of the response to the request for obtaining a user token

Response Body

A response body is often returned in structured format. It corresponds to content-type header field and passes content except the response header.

The following is part of the response body for the API used to obtain a user token. The following describes part of the request body.

{
    "token": {
        "expires_at": "2019-02-13T06:52:13.855000Z",
        "methods": [
            "password"
        ],
        "catalog": [
            {
                "endpoints": [
                    {
                        
                        
                        "region_id": "eu-west-101",
......

If an error occurs during API calling, an error code and the corresponding error message will be displayed. The following shows an error response body:

{
    "error_msg": "The format of message is error",
    "error_code": "AS.0001"
}

In the preceding information, error_code is an error code, and error_msg describes the error.