QueryDeviceByTags - IoT Platform

Limits

You can specify a maximum of 10 tags in a single call.
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.

Debugging

Alibaba Cloud provides OpenAPI Explorer to simplify API usage. 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	QueryDeviceByTags	The operation that you want to perform. Set the value to QueryDeviceByTags.
Tag.N.TagKey	String	Yes	room	The key of the device tag.
Tag.N.TagValue	String	Yes	101	The value of the device tag.
IotInstanceId	String	No	iot_instc_pu***_c-v64********	The ID of the instance. You can view the instance ID on the Overview page in the IoT Platform console. Notice If your instance has an ID, you must configure this parameter. If you do not set this parameter, the call fails. If your instance has no Overview page or ID, you do not need to set this parameter. For more information, see Overview.
CurrentPage	Integer	No	1	The number of the page to return. Default value: 1.
PageSize	Integer	No	10	The number of entries to return on each page. Maximum value: 50. Default value: 10.

In addition to the preceding operation-specific request parameters, you must specify common request parameters when you call this 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.
Data	Array of SimpleDeviceInfo		The device information returned if the call succeeds. The SimpleDeviceInfo parameter includes the details of the devices.
SimpleDeviceInfo
DeviceName	String	light1	The DeviceName of the device.
IotId	String	Q7uOhVRdZRRlDnTLv****00100	The ID of the device. The ID is the unique identifier that is issued by IoT Platform to the device.
ProductKey	String	a1BwAGV****	The ProductKey of the product to which the device belongs.
ProductName	String	lamp	The name of the product.
ErrorMessage	String	A system exception occurred.	The error message returned if the call fails.
Page	Integer	1	The page number of the returned page.
PageCount	Integer	1	The total number of pages.
PageSize	Integer	10	The number of entries returned on each page.
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.
Total	Integer	1	The total number of records.

Examples

Sample requests

https://iot.cn-shanghai.aliyuncs.com/?Action=QueryDeviceByTags
&CurrentPage=1
&PageSize=10
&Tag.1.TagKey=room
&Tag.1.TagValue=101
&Tag.2.TagKey=city
&Tag.2.TagValue=hangzhou
&<Common request parameters>

Sample success responses

XML format

<QueryDeviceByTags>
  <PageCount>1</PageCount>
  <Data>
        <SimpleDeviceInfo>
              <DeviceName>1102jichu02</DeviceName>
              <ProductKey>a1SM5S1****</ProductKey>
              <IotId>GookTiUcwqRbHosp9Ta10****3a00</IotId>
              <ProductName>TEST</ProductName>
        </SimpleDeviceInfo>
  </Data>
  <PageSize>10</PageSize>
  <Page>1</Page>
  <RequestId>2B5091E4-32D5-4884-A5B2-2E8E713D84AF</RequestId>
  <Success>true</Success>
  <Total>1</Total>
</QueryDeviceByTags>

JSON format

{
    "PageCount": 1,
    "Data": {
        "SimpleDeviceInfo": [
            {
                "DeviceName": "1102jichu02",
                "ProductKey": "a1SM5S1****",
                "IotId": "GookTiUcwqRbHosp9Ta10****3a00",
                "ProductName": "TEST"
            }
        ]
    },
    "PageSize": 10,
    "Page": 1,
    "RequestId": "2B5091E4-32D5-4884-A5B2-2E8E713D84AF",
    "Success": true,
    "Total": 1
}

Error codes

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