You can call this operation to query information about all files that are uploaded to IoT Platform from the specified device.

Restrictions and guidelines

The returned file information for this operation call does not contain download URLs. To obtain the download URL of a file, call QueryDeviceFile.

Request parameters

Parameter Type Required Description
Action String  Yes The operation that you want to perform. Set the value to QueryDeviceFileList.
IotId String No The unique identifier of the device.
Note If you provide this parameter, you do not need to provide the ProductKey or DeviceName parameters. As the GUID of the device, IotId corresponds to the combination of ProductKey and DeviceName. If you provide both IotId and the combination of ProductKey and DeviceName, IotId takes precedence. This parameter cannot be left empty.
ProductKey String No The key of the product to which the device belongs.
Note If you provide this parameter, you must also provide the DeviceName parameter.
DeviceName String No The device name.
Note If you provide this parameter, you must also provide the ProductKey parameter.
PageSize Integer No The number of items per page displayed in the returned results. Maximum value: 200. Default value: 10.
CurrentPage Integer No The page of returned results to be displayed. Minimum value:1 . Default value: 1.
Common request parameters N/A Yes See Common parameters.

Response parameters

Parameter Type Description
RequestId String The GUID generated by Alibaba Cloud for the request.
Success Boolean Indicates whether the call is successful. A value of true indicates that the call is successful. A value of false indicates that the call has failed.
ErrorMessage String The error message returned when the call fails.
Code String The error code returned when the call fails. For more information about error codes, see Error codes.
Data List<FileStoreSummary> The list of file information returned when the call is successful. For more information, see the following table: Parameters in FileStoreSummary.
Table 1. Parameters in FileStoreSummary
Parameter Type Description
FileId String The file identifier.
Name String The file name.
Size String The file size.
UtcCreatedOn String The time when the file was created.

Examples

Sample request

https://iot.cn-shanghai.aliyuncs.com/?Action=QueryDeviceFileList
&ProductKey=al********
&DeviceName=deviceName1
&PageSize=10
&CurrentPage=1
&Common request parameters

Sample responses

  • JSON format
    {
  "PageCount": 1, 
  "Data": {
    "FileStoreSummary": [
      {
        "Name": "testFile2.txt", 
        "FileId": "xL0G67MBLBDtkR7GCfT******", 
        "UtcCreatedOn": "2019-03-21T08:45:42.000Z", 
        "Size": "102400"
      }, 
      {
        "Name": "testFile3.txt", 
        "FileId": "6UCo1SqbqnQEoh9aKqD******", 
        "UtcCreatedOn": "2019-03-21T08:45:42.000Z", 
        "Size": "102400"
      }, 
      {
        "Name": "testFile1.txt", 
        "FileId": "IhXXww3Eeu6uzSOSCyu******", 
        "UtcCreatedOn": "2019-03-21T08:45:40.000Z", 
        "Size": "102400"
      }
    ]
  }, 
  "PageSize": 10, 
  "RequestId": "7C7BA526-826D-46AA-A45E-55D21E6D1583", 
  "CurrentPage": 1, 
  "Success": true, 
  "Total": 3
}
  • XML format
    <? xml version="1.0" encoding="utf-8"? >
<QueryDeviceFileListResponse>
 <PageCount>1</PageCount>
 <Data>
   <FileStoreSummary>
     <Name>testFile2.txt</Name>
     <FileId>xL0G67MBLBDtkR7GCfT******</FileId>
     <UtcCreatedOn>2019-03-21T08:45:42.000Z</UtcCreatedOn>
     <Size>102400</Size>
   </FileStoreSummary>
   <FileStoreSummary>
     <Name>testFile3.txt</Name>
     <FileId>6UCo1SqbqnQEoh9aKqD******</FileId>
     <UtcCreatedOn>2019-03-21T08:45:42.000Z</UtcCreatedOn>
     <Size>102400</Size>
   </FileStoreSummary>
   <FileStoreSummary>
     <Name>testFile1.txt</Name>
     <FileId>IhXXww3Eeu6uzSOSCyu******</FileId>
     <UtcCreatedOn>2019-03-21T08:45:40.000Z</UtcCreatedOn>
     <Size>102400</Size>
   </FileStoreSummary>
 </Data>
 <PageSize>10</PageSize>
 <RequestId>BF06F7FD-B199-4B90-9128-8416F975135E</RequestId>
 <CurrentPage>1</CurrentPage>
 <Success>true</Success>
 <Total>3</Total>
</QueryDeviceFileListResponse>