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• Get Asset Latest Data

Get Asset Latest Data

Get the latest data of all measurement points of specified devices.

Using GET Method

Request Format

GET https://{apigw-address}/tsdb-service/v2.0/latest

Request Parameters (URI)

Name	Location (Path/Query)	Required/Optional	Data Type	Description
orgId	Query	Required	String	The organization ID which the asset belongs to. How to get organization ID >>
modelId	Query	Optional	String	The model ID. How to get model ID >>
assetIds	Query	Required	String	The asset ID. Supports the query of multiple asset IDs, separated by commas. How to get asset ID >>
measurepoints	Query	Required	String	The measurement point ID. Supports the query of multiple measurement point IDs, separated by commas. How to get measurement point ID >>
timeWindow	Query	Optional	Integer	Specify the time window for querying the latest data (by minutes). The minimum value is 0. If not specified, no constrain is applied. For example: when timeWindow=n, the data within n minutes from the current time is returned. When timeWindow=0, if the latest data timestamp is later than the current time, the data of the latest timestamp will be returned.
accessKey	Query	Optional	String	The service account for authentication purposes. How to get the accessKey>>
ifWithLocalTime	Query	Optional	Boolean	true = returns data in local time format false (default) = does not return data in local time format
localTimeAccuracy	Query	Optional	Boolean	Specify whether the local time in the returned data should be in millisecond format. Only effective when ifWithLocalTime=true. true indicates that the local time should be returned in millisecond format, false indicates that millisecond format is not required, and the default value is false.

Response Parameters

Name	Data Type	Description
data	List<JSONObject>	The list of asset data. The data returned for a single point of a single device is sorted by the data time stamp in ascending order. For more information, see items

items

Sample

{
        "assetId": "yourAssetId",
        "yourPointId": 1.1236,
        "timestamp": 1560249312446
}

Parameters

Name	Data Type	Description
assetId	String	The asset ID.
timestamp	Long	The data timestamp (UNIX time, accurate to the second).
pointId	Double	This parameter is a variable, where the parameter name in the returned structure represents the identifier of the measurement point, and the parameter value represents the data for that measurement point. The returned data for the same measurement point of the same device will be sorted in ascending order by time.

#

Samples (GET Method)

Request Sample

url: https://{apigw-address}/tsdb-service/v2.0/latest?orgId=yourOrgId&assetIds=yourAssetIds&measurepoints=yourPointIds&timeWindow=&accessKey=accessKeyOfYourAPP

method: GET

Return Sample

{
  "status": 0,
  "requestId": null,
  "msg": "success",
  "submsg": null,
  "data": {
    "items": [
      {
        "assetId": "yourAssetId",
        "yourPointId": 2.123,
        "timestamp": 1560249532446
      }
    ]
  }
}

Using POST Method

Request Format

POST https://{apigw-address}/tsdb-service/v2.0/latest

Request Parameters (Body)

Name	Required/Optional	Data Type	Description
orgId	Required	String	The organization ID which the asset belongs to. How to get organization ID >>
assetIds	Required	String	The asset ID. Supports the query of multiple asset IDs, separated by commas. How to get asset ID >>
measurepoints	Required	String	The measurement point ID. Supports the query of multiple measurement point IDs, separated by commas. How to get measurement point ID >>
timeWindow	Optional	String	Specify the time window for querying the latest data (by minutes). The minimum value is 0. If not specified, no constrain is applied.
accessKey	Optional	String	The service account for authentication purposes. How to get the accessKey>>
ifWithLocalTime	Optional	String	true = returns data in local time format false (default) = does not return data in local time format
localTimeAccuracy	Optional	String	Specify whether the local time in the returned data should be in millisecond format. Only effective when ifWithLocalTime=true. true indicates that the local time should be returned in millisecond format, false indicates that millisecond format is not required, and the default value is false.

Response Parameters

See description in Response Parameters of the Using GET Method section.

#

Sample (POST Method)

Request Sample

url: https://{apigw-address}/tsdb-service/v2.0/latest

method: POST

Content-Type: multipart/form-data;charset=UTF-8

requestBody:
{
  "orgId": "yourOrgId",
  "measurepoints": "yourPointIds",
  "timeWindow": 10,
  "assetIds": "yourAssetIds",
  "accessKey": "accessKey of your APP"
}

Return Sample

{
  "status": 0,
  "requestId": null,
  "msg": "success",
  "submsg": null,
  "data": {
    "items": [
      {
        "assetId": "yourAssetId",
        "yourPointId": 2.123,
        "timestamp": 1560249532446
      }
    ]
  }
}

SDK Samples

You can access the `Java SDK Samples<https://github.com/EnvisionIot/sample-code-java/tree/EnOS2.4/tsdbdata>`__for TSDB data service on Github.