Creating a Batch Task

Typical Scenario

When an NA needs to perform an operation on a batch of devices, the NA can call this API to create a batch task. Currently, the supported batch operations include delivering pending commands to devices in batches.

API Function

This API is used by an NA to create a batch task for devices on the IoT platform.

API Description

1	BatchTaskCreateOutDTO createBatchTask(BatchTaskCreateInDTO2 btcInDTO, String accessToken) throws NorthApiException

Class

BatchProcess

Parameter Description

Parameter	Mandatory or Optional	Type	Location	Description
accessToken	Mandatory	String	header	If the Periodically Refreshing a Token API is called, set this parameter to null. Otherwise, set this parameter to the accessToken obtained by the Authentication API.
btcInDTO	Mandatory	BatchTaskCreateInDTO2	body	For details, see BatchTaskCreateInDTO2 structure.

BatchTaskCreateInDTO2 structure

Parameter	Mandatory or Optional	Type	Location	Description
appId	Mandatory	String(64)	body	Uniquely identifies an NA. This parameter is used to identify an NA that can call open APIs provided by the IoT platform. The value of this parameter is obtained when the NA is created on the SP portal of the IoT platform.
timeout	Mandatory	Integer	body	Indicates the timeout duration of a task, in minutes. The value range is 10–2880.
taskName	Mandatory	String	body	Indicates the task name. The value is a string of a maximum of 256 characters.
taskType	Mandatory	String	body	Indicates the task type. The value can be DeviceCmd.
param	Mandatory	ObjectNode	body	Indicates task parameters. The value of this parameter varies depending on the taskType. For details, see ObjectNode structure.
tags	Optional	List<TagDTO2>	body	Indicates the tag list. For details, see TagDTO2 structure.

ObjectNode:

Parameter	Mandatory or Optional	Type	Location	Description
type	mandatory	String	body	Indicates the batch command type. This parameter is mandatory when taskType is set to DeviceCmd. The options include DeviceList, DeviceType, DeviceArea, GroupList, Broadcast, and GroupIdList.
deviceList	Conditionally mandatory	List<String>	body	Indicates the device ID list. This parameter is mandatory when type is set to DeviceList.
deviceType	Conditionally mandatory	String	body	Indicates the device type. This parameter is mandatory when type is set to DeviceType. Set this parameter to the value defined in the profile file.
manufacturerId	Conditionally optional	String	body	Identifies the manufacturer. This parameter is mandatory when type is set to DeviceType. Set this parameter to the value defined in the profile file.
model	Conditionally optional	String	body	Indicates the device model. This parameter is mandatory when type is set to DeviceType. Set this parameter to the value defined in the profile file.
deviceLocation	Conditionally mandatory	String	body	Indicates the location of the device. This parameter is mandatory when type is set to DeviceArea.
groupList	Conditionally mandatory	List<String>	body	Indicates the group ID list or device group name list. When type is set to GroupIdList, set this parameter to the group ID. When type is set to GroupList, set this parameter to the device group name.
command	mandatory	CommandDTO	body	Indicates the command information.
callbackUrl	Conditionally optional	String	body	Indicates the push address of the command execution result.
maxRetransmit	Conditionally optional	Integer(0~3)	body	Indicates the maximum number of retransmissions of a command. The value ranges from 0 to 3.
groupTag	Conditionally optional	String	body	Indicates the group tag.

CommandDTO structure:

Parameter	Mandatory or Optional	Type	Location	Description
serviceId	Mandatory	String(1-64)	body	Identifies the service corresponding to the command. The value of this parameter must be the same as the value of serviceId defined in the profile file.
method	Mandatory	String(1-128)	body	Indicates the name of a specific command under the service. The value of this parameter must be the same as the command name defined in the profile file.
paras	Optional	ObjectNode	body	Indicates a command parameter in the jsonString format. The value consists of key-value pairs. Each key is the paraName parameter in commands in the profile file. The specific format depends on the application and device.

TagDTO2 structure

Parameter	Mandatory or Optional	Type	Location	Description
tagName	Mandatory	String(1-128)	body	Indicates the tag name.
tagValue	Mandatory	String(1-1024)	body	Indicates the tag value.

Return Value

BatchTaskCreateOutDTO

Parameter	Type	Description
taskID	String	Identifies a batch task.

Error Codes

HTTP Status Code	Error Code	Error Description	Remarks
200	100203	The application is not existed.	The application does not exist. Recommended handling: Check whether appId carried in the HTTP request header is correct. Check whether appId in the request path (URL) is correct.
200	101001	Resource doesn't exist.	The resource does not exist.
200	105001	The batchTask count has reached the limit.	If the number of unfinished tasks is greater than or equal to 10, a message is returned, indicating that the number of tasks reaches the limit.
200	105002	The batchTask name has exist.	The task name exists. Recommended handling: Change the task name.
400	105201	The tagName and tagValue has been used on the platform.	The tagName and tagValue have been used on the IoT platform.
400	50400	The input is invalid.	An input parameter is invalid. Recommended handling: Check whether parameters carried in the API call request are valid.
401	100028	The user has no right.	The user has no operation permission.
403	100203	The application is not existed.	The application does not exist. Recommended handling: Check whether appId carried in the HTTP request header is correct. Check whether appId in the request path (URL) is correct.
403	100217	The application hasn't been authorized.	The application has not been authorized. Recommended handling: In scenarios where applications are not authorized, ensure that request parameter appId is null.
403	1010009	app throttle exceed.	The NA calls the API at a frequency that exceeds the flow control threshold (100 calls per minute by default). Recommended handling: Contact IoT platform maintenance personnel to adjust the flow control threshold or control the API call frequency.
403	1010005	App_key or access_token is invalid.	The access token is invalid. Recommended handling: Check whether accessToken carried in the API request is correct.
404	105202	The tag is not existed.	The tag does not exist.
500	100203	The application is not existed.	The application does not exist. Recommended handling: Check whether appId carried in the HTTP request header is correct. Check whether appId in the request path (URL) 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.