iReport Json query

[vid.ogris]

Hello

I am trying to connect to Json datasource (file). The connection is successful but when reading field or trying to get schema of the file I am getting an error The active connection is not of type JDBC.Activate JDBC connection first.

Or if I go to DAtaSource Provider tab the error is: the active connection is not a JasperReports DataSource provider. 

Any ideas? Is it even possible to parse json file to get fields out?

 

Thank you