QueryTopicRouteTable - IoT Platform

Limits

Each Alibaba Cloud account can run a maximum of 50 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	QueryTopicRouteTable	The operation that you want to perform. Set the value to QueryTopicRouteTable.
Topic	String	Yes	/x7aWKW94bb8/testDataToDataHub/user/update	The source topic that publishes messages.
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.

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.
DstTopics	List	["/CXi4*/device2/get","/CXi4*/device3/get"]	The list of destination topics returned if the call is successful.
ErrorMessage	String	A system exception occurred.	The error message returned if the call fails.
RequestId	String	FCC27691-9151-4B93-9622-9C90F30542EC	The ID of the request.
Success	Boolean	true	Indicates whether the call was successful. true: The call was successful. false: The call failed.

Examples

Sample requests

https://iot.cn-shanghai.aliyuncs.com/?Action=QueryTopicRouteTable
&Topic=%2Fx7aWKW94bb8%2FtestDataToDataHub%2Fuser%2Fupdate
&<Common request parameters>

Sample success responses

XML format

<QueryTopicRouteTableResponse>
  <DstTopics>
        <Topic>/a1T27vz****/${deviceName}/user/submit/update</Topic>
  </DstTopics>
  <RequestId>D6CB2387-0D65-4240-9436-A2E18B434E31</RequestId>
  <Success>true</Success>
</QueryTopicRouteTableResponse>

JSON format

{
    "DstTopics": {
        "Topic": [
            "/a1T27vz****/${deviceName}/user/submit/update"
        ]
    },
    "RequestId": "D6CB2387-0D65-4240-9436-A2E18B434E31",
    "Success": true
}

Error codes

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