...
If "fields" parameter is empty/not present in uri: http://host:port/eagle/v2/adhocreport?reportName=RM_PerfTotalExtended&entityselectiontype=EntityID&entityselectionvalue=41038M&beginDate=20150101&endDate=20151231&outputFormat=JSON
then it will be empty in JSON body:
...
{
"reportName": "RM_PerfTotalExtended",
"entityId": "41038M",
"beginDate": "20150101",
"endDate": "20151231",
"fields": "",
"outputFormat":"JSON"
}As in case with AdhocReport POST endpoint above there is possibility to use x-eagle-return-ticket, x-eagle-rest-callback and x-eagle-correlation-id HTTP headers.