title: JasperReports Server using REST with JSON request return PDF report
body: <p>I want to export reports in PDF from my app (Writed in MEAN) sending data to fill the report through the request.</p>
  
  <p>It is possible to call JasperReports Server REST with a JSON file as a DataSource returning PDF report as output?</p>
  
  <p>I found some examples using external datasource as JSON, but not sending JSON in request.</p>