Returned Values¶
Status Code¶
After sending a request, you will receive a response containing 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 request. 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, where x-subject-token is the desired user token. Then, you can use the token to authenticate the calling of other APIs.
Figure 1 Header of the response to the request for obtaining a user token¶
Response Body¶
A response body is generally returned in a structured format, corresponding to the Content-Type in the response header, and is used to transfer content other than the response header.
The following shows part of the response body for the API of obtaining a user token.
{
"token": {
"expires_at": "2019-02-13T06:52:13.855000Z",
"methods": [
"password"
],
"catalog": [
{
"endpoints": [
{
"region_id": "xxx",
......
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.