Returned Values
Status Code
After sending a request, you will receive a response, including the 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 response. For more information, see Status Code.
If status code 201 is returned for the calling of the API for obtaining a user token, the request is successful.
Response Header
A response header corresponds to a request header, for example, Content-type.
Figure 1 shows the response header for the API of obtaining a user token, in which x-subject-token is the desired user token. Then, you can use the token to authenticate the calling of other APIs.
(Optional) Response Body
The body of a response is often returned in structured format (such as JSON or XML) as specified in the Content-type header field. The response body transfers content except the response header.
You can obtain a token by calling an API. The following shows part of the response body for the API to obtain a user token.
{ "token": { "expires_at": "2019-02-13T06:52:13.855000Z", "methods": [ "password" ], "catalog": [ { "endpoints": [ { "region_id": "XXXXXX", ......
If an error occurs during API calling, the system returns an error code and a message to you. The following shows the format of 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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