Getting Started with tRest and API's

[Anonymous]

Hi all, 

when i'm trying to get data from a json webservice url using the component Trest i get always the error 400 Bad request Invalid JSON data:  ' ' 

this picture describe how i configured the component and the error msg 

[TRF]

What if you try to call the service using Postman or SoapUI with the same settings?

[Anonymous]

call using postman works fine 

screenshot in attach

Captureerror.PNG