Filter Asset Latest Data¶

Filter and query the latest data of a single measurement point for multiple devices.

Operation Permissions¶

Required Authorization	Required Operation Permission
Asset	Read

For more information about resources and required permission, see Policies, Roles and Permissions>>

Using GET Method¶

Request Format¶

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

Request Parameters (URI)¶

Name	Location (Path/Query)	Mandatory/Optional	Data Type	Description
orgId	Query	Mandatory	String	The organization ID which the asset belongs to. How to get organization ID>>
modelId	Query	Mandatory	String	The model ID. How to get model ID>>
assetIds	Query	Mandatory	String	The asset ID. Supports the query of multiple asset IDs, separated by commas. How to get asset ID>>
measurepoint	Query	Mandatory	String	The measurement point ID. How to get measurement point ID>>
operator	Query	Mandatory	String	The query operator. It supports: eq: equals to nq: not equals to gt: greater than lt: less than ge: greater than or equals to le: less than or equals to between: interval of 2 values in: one of multiple values
valueFilter	Query	Mandatory	String	The value to filter for. It must be used along with the operator. The operators “eq”, “nq”, “gt”, “ge”, “lt”, and “le” correspond to a single value; “between” corresponds to 2 values; “in” corresponds to multiple values. Multiple values must be separated by commas, and the data types must be consistent with those of the measurement points. For example: “operator=betwteen&valueFilter=a, b” refers to filtering out the values between a and b.
timeWindow	Query	Optional	Integer	Specify the time window for filtering the latest data (by minutes). The minimum value is 0. If not specified, no constrain is applied.
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	true = query returns data with millisecond time stamp false (default) = query returns data without millisecond time stamp

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 timestamp in ascending order. For more information, see items

items¶

Sample¶

{
    "assetId": "yourAssetId",
    "yourPointId": 1.5,
    "timestamp": 1559570160000
}

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, representing the identifier and data of the measurement point.

Error Codes¶

For description of error codes, see Common Error Codes.

Samples (GET Method)¶

Request Sample¶

url: https://{apigw-address}/tsdb-service/v2.0/latest/filter?orgId=yourOrgId&assetIds=yourAssetIds&modelId=yourModelId&measurepoint=yourPointId&timeWindow=&operator=le&valueFilter=55673.9&accessKey=accessKeyOfYourAPP

method: GET

In the above example, the request sample will filter out the pointId value of the model opentsdb_model, which is less than or equals to 55673.9.

Return Sample¶

{
  "status": 0,
  "requestId": null,
  "msg": "success",
  "submsg": null,
  "data": {
    "items": [
      {
        "assetId": "yourAssetId",
        "yourPointId": 1.5,
        "timestamp": 1559570160000
      }
    ]
  }
}

Using POST Method¶

Request Format¶

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

Request Parameters (Body)¶

Name	Mandatory/Optional	Data Type	Description
orgId	Mandatory	String	The organization ID which the asset belongs to. How to get organization ID>>
modelId	Mandatory	String	The model ID. How to get model ID>>
assetIds	Mandatory	String	The asset ID. Supports the query of multiple asset IDs, separated by commas. How to get asset ID>>
measurepoint	Mandatory	String	The measurement point ID. How to get measurement point ID>>
operator	Mandatory	String	The query operator. It supports: eq: equals to nq: not equals to gt: greater than lt: less than ge: greater than or equals to le: less than or equals to between: interval of 2 values in: one of multiple values
valueFilter	Mandatory	String	The value to filter for. It must be used along with the operator. The operators “eq”, “nq”, “gt”, “ge”, “lt”, and “le” correspond to a single value; “between” corresponds to 2 values; “in” corresponds to multiple values. Multiple values must be separated by commas, and the data types must be consistent with those of the measurement points. For example: “operator=betwteen&valueFilter=a, b” refers to filtering out the values between a and b.
timeWindow	Optional	String	Specify the time window for filtering 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	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	true = query returns data with millisecond time stamp false (default) = query returns data without millisecond time stamp

Response Parameters¶

Refer to the description in Response Parameters of the Using GET Method section.

Error Codes¶

For the description of error codes, see Common Error Codes.

Samples (POST Method)¶

Request Sample¶

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

method: POST

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

requestBody:
{
  "orgId": "yourOrgId",
  "modelId": "yourModelId",
  "assetIds": "yourAssetIds",
  "pointId": "yourPointId",
  "operator": "le",
  "valueFilter": "55673.9",
  "accessKey": "accessKey of your APP"
}

Where, operator=le&valueFilter=55673.9 means that: The following sample will filter out the pointId value of the model opentsdb_model, which is less than or equal to 55673.9.

Return Sample¶

{
  "status": 0,
  "requestId": null,
  "msg": "success",
  "submsg": null,
  "data": {
    "items": [
      {
        "assetId": "yourAssetId",
        "yourPointId": 1.5,
        "timestamp": 1559570160000
      }
    ]
  }
}

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.