...
For example to retrieve an extract with one entity in JSON you can use HTTP GET or POST request either.
In case of GET request filter parameters should be passed as a query parameters:
http://appserverhostname:20427/eagle/v2/entities?maxrows=1
The same with a POST request, filter parameters are passed within a JSON body (multiple parameters should be divided by a comma):
http://appserverhostname:20427/eagle/v2/entities
{
"maxrows": "1"
}
or in 2017R2
http://webserver/eagle/v2/entities?maxrows=1
...