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.
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": "ap-southeast-3", ......
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.
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