Grails: RESTful web services data processing in different format

Question

Currently I'm working on grails 2.4.3 with GGTS 3.6.0

Requirement - How a grails web service work.

Existing - Currently my closure is working for me as a web service but output is format specific(JSON or XML at a time).

Problem - In closure(web service), how I would be able to return JSON/XML and other format.

Closure code -

def able_Webservice = {

   ableService.populateAbleBean(ableBean);
   ableService.settingWhereClause(ableBean);
   ableService.getDBData(ableBean);
   def jsonData = ableService.webservice_Data(ableBean);
   render jsonData as JSON

}   

Answer 1

Grails has withFormat feature. You can render different responses based on the incoming request Accept header, format parameter or URI extension.

Your code would like:

def able_Webservice = {
   ableService.populateAbleBean(ableBean);
   ableService.settingWhereClause(ableBean);
   ableService.getDBData(ableBean);
   def data = ableService.webservice_Data(ableBean);
   withFormat {
      xml { render data as XML }
      json { render data as JSON }
   }
}

This uses built-in content negotiation.