@chenchong

The HTTP 400 Bad Request normally is returned once the request message is incorrect. The error detail will be in the body of the status. Once the issue occurs, you may dump the request message body and try the message on another tool such as Postman to get error detail.

Anyway, please see the following comments on your code.

- Please ensure that the endpoint to create the ElektronTimeseriesReportTemplate is "/Extractions/ElektronTimeseriesReportTemplates".

- The "StartDate" and "EndDate" condition are required for this report template. You need to specify the date range of data to be extracted.

- The "Open Price" and "Low Price" fields are not valid for this report template. I think the "Open" and "Low" fields should be used instead. You can find all available fields in the Data Dictionary file.

Below is the sample code.

           HttpPost httppost = new HttpPost(urlHost + "/Extractions/ElektronTimeseriesReportTemplates");

httppost.addHeader("content-type", "application/json;odata.metadata=minimal");
httppost.addHeader("Authorization", "Token " + sessionToken);

 // Note: content fields are specific to each report template type
 JSONOrderedObject TAndCTemplateJSONObject = new JSONOrderedObject()

.put("@odata.type","#ThomsonReuters.Dss.Api.Extractions.ReportTemplates.ElektronTimeseriesReportTemplate")

.put("ShowColumnHeaders", false)

.put("Name", reportTemplateName)

.put("Headers", new JSONArray() )

.put("Trailers", new JSONArray() )

.put("ContentFields", new JSONArray()

.put( new JSONObject() .put("FieldName", "RIC") .put( "Format", JSONObject.NULL)) .put( new JSONObject() .put("FieldName", "Volume") .put( "Format", JSONObject.NULL) ) .put( new JSONObject() .put("FieldName", "Open") .put( "Format", JSONObject.NULL) ) .put( new JSONObject() .put("FieldName", "Low") .put( "Format", JSONObject.NULL) ) ) 

.put("Condition", new JSONOrderedObject()
                    .put( "StartDate", "2016-01-01T00:00:00.000-00:00" )
                    .put( "EndDate", "2016-02-01T00:00:00.000-00:00" ));