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 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.

Identifier String Yes 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 the TslStr response parameter.

ProductKey String Yes a1BwAGV****

The ProductKey of the product.

ThingModelJson String Yes {"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 You can specify only one feature.

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

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

The ID of the instance. The ID of the instance. This parameter is not required for public instances. However, the parameter is required for the instances that you have purchased.

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

Response parameters

Parameter Type Example Description
Code String iot.system.SystemException

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

ErrorMessage String A system exception 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 was successful.

  • true: The call was successful.
  • 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.