Authentication

Typical Scenario

This API is called by an NA for access authentication when the NA accesses open APIs of the IoT platform for the first time. After the authentication of the NA expires, the NA must call this API to perform authentication again so that the NA can continue to access open APIs of the IoT platform.

API Function

This API is used by an NA to get authenticated before accessing open APIs of the IoT platform for the first time.

Note

The authentication API is the prerequisite for calling other APIs. Except the authentication API itself, other APIs must use the accessToken obtained by the authentication API.

If the accessToken is obtained for multiple times, the previous accessToken is invalid and the last accessToken obtained is valid. Do not obtain the accessToken through concurrent attempts.

API Description

1	AuthOutDTO getAuthToken() throws NorthApiException

Class

Authentication

Parameter Description

The application ID and secret use the values of Methods of the ClientInfo Class in the NorthApiClient class.

Return Value

AuthOutDTO

Parameter	Type	Description
scope	String(256)	Indicates the application permission scope, that is, the scope of IoT platform resources that can be accessed using the accessToken. This parameter has a fixed value of default.
tokenType	String(256)	Indicates the type of the accessToken. This parameter has a fixed value of bearer.
expiresIn	Integer(256)	Indicates the validity time for the IoT platform to generate and return the accessToken, in seconds.
accessToken	String(256)	Indicates the authentication parameter that is used to access APIs of the IoT platform.
refreshToken	String(256)	Indicates the authentication parameter that is used to update the accessToken. The validity period of this parameter is 1 month.

Error Code

HTTP Status Code	Error Code	Error Description	Remarks
400	100449	The device is freezed cant operate.	The user does not have the operation permission. Recommended handling: Check whether the user corresponding to appId has the permission to call the API.
400	102202	Required Parameter is null or empty.	Mandatory fields cannot be left blank. Recommended handling: Check whether the mandatory parameters in the request are set.
401	100208	AppId or secret is not right.	appId or secret is incorrect. Recommended handling: Check whether appId and secret are correct. Specifically, check for new or missing characters. Check whether the IP address in the request path is correct.
500	50252	Internal server error.	An internal server error occurs. Recommended handling: An internal error occurs on the IoT platform. Contact IoT platform maintenance personnel.