Updates a Thing Specification Language (TSL) feature of a specified product.


  • You can call this operation to update only one feature. TSL features include properties, services, and events.
  • Each Alibaba Cloud account can run a maximum of 5 queries per second (QPS).
    Note Resource Access Management (RAM) users of an Alibaba Cloud account share the quota of the account.


OpenAPI Explorer automatically calculates the signature value. For your convenience, we recommend that you call this operation in OpenAPI Explorer. OpenAPI Explorer dynamically generates the sample code of the operation for different SDKs.

Request parameters

Parameter Type Required Example Description
Action String Yes UpdateThingModel

The operation that you want to perform. Set the value to UpdateThingModel.

ProductKey String Yes a1BwAGV****

The product key.

You can view the ProductKey on the Product Details page of the IoT Platform console. You can also obtain the ProductKey by calling the QueryProductList operation.

IotInstanceId String No iot-cn-0pp1n8t****

The instance ID. This parameter is not required for public instances. However, this parameter is required for Enterprise Edition instances.

Identifier String No Temperature

The identifier of the feature.

To update a feature, you must specify the identifier of the feature. You can call the GetThingModelTsl operation and view the identifier in the TslStr response parameter.

ThingModelJson String No { "properties":[ { "identifier": "SimCardType", "extendConfig":"{...}", "dataSpecs": { "max": "1", "dataType": "INT", "unit": "mmHg", "min": "0", "step": "1" }, "std": false, "custom": true, "dataType": "INT", "rwFlag": "READ_ONLY", "productKey": "a1Jw4i****", "required": false, "customFlag": true, "name": "SIM card type" } ] }

The updated details of the feature.

Note If you specify the Identifier parameter, you can specify only feature in the ThingModelJson parameter. If you do not specify the Identifier parameter, you can specify a maximum of 10 features in the ThingModelJson parameter.

For more information about how to specify this parameter, see Data structure of ThingModelJson.

FunctionBlockId String No BatteryModule

The identifier of a TSL-based custom module. Each identifier is unique in a product.

If you do not specify this parameter or the FunctionBlockName parameter, the system updates the features of the default module.

FunctionBlockName String No Battery_Module

The name of the custom module. The name must be 4 to 30 characters in length, and can contain letters, digits, and underscores (_).

  • If you do not specify this parameter or the FunctionBlockId parameter, the system updates the features of the default module.
  • If you specify this parameter, the parameter must be used in combination with the FunctionBlockId parameter. You can modify the name of the specified custom module. The name corresponds to the value of the FunctionBlockId parameter.
Note You cannot modify the name of the default module.

In addition to the preceding operation-specific request parameters, you must specify common request parameters when you call this API operation. For more information, see Common request parameters.

Response parameters

Parameter Type Example Description
Code String iot.system.SystemException

The error code returned if the call fails. For more information, see Error codes.

ErrorMessage String A system exception has occurred.

The error message returned if the call fails.

RequestId String E55E50B7-40EE-4B6B-8BBE-D3ED55CCF565

The ID of the request.

Success Boolean true

Indicates whether the call succeeds.

  • true: The call succeeded.
  • false: The call failed.


Sample requests

&ThingModelJson={"properties":[{"identifier": "SimCardType","dataSpecs": {"max": "1", "dataType": "INT","unit": "mmHg","min": "0","step": "1"},"std": false,"custom": true,"dataType": "INT","rwFlag": "READ_ONLY","productKey": "a1Jw4id****","required": false,"customFlag": true, "name": "SIM card type"}]}
&<Common request parameters>

Sample success responses

XML format


JSON format

  "RequestId": "5573D217-8E3E-47AD-9331-2083B88E64B2",
  "Success": true

Error codes

For a list of error codes, visit the API Error Center.