bind JSON data to action arguments

Question

My Grails app includes an action that expects the following JSON data to be sent via HTTP POST

{email: '[email protected]'}

Currently I retrieve the value of the email like so

def foo() {
    def json = request.JSON
    String email = json.email

    // remainder of action omitted          
}

If the data were being sent via URL parameters instead, I could bind it by name to an action argument like so:

def foo(String email) {

    // remainder of action omitted          
}

Is it possible to bind JSON in the request body to action arguments directly, or is this facility limited to URL and form parameters?

Joshua Moore · Accepted Answer · 2015-03-30 14:33:50Z

3

Unfortunately the binding of method/action parameters is limited to post/query string parameters and does not support obtaining them via JSON or XML.

The next best solution is to encapsulate/bind the request with a command object.

(I tested this in Grails 2.4.2).

answered Mar 30, 2015 at 14:33

Joshua Moore

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