Jasperreports - how to get JSON to populate a subreport

Question

I am trying to get a table to populate with the same data in my main report using Jasper/iReport. How can I get the Json to carry over?

In Edit table datasource I\

Answer 1

If anyone is using the JasperReports new Book Reports feature (available in version 6+) and you want to use a JsonDataSource, this is the way to pass the json payload to the subreports:

You could also pass a subset of the json payload by providing node location as a parameter of the subDataSource(java.lang.String selectExpression) method. Examples:

.subDataSource("Northwind.Customers")

or

.subDataSource("Northwind.Customers(Country == USA)")