requestHandler(request, response(...), requestHeaders, ajaxSettings)

Defines the XHR response for a given trapped request.

import {fixture, ajax} from "can";

fixture( { method: "get", url: "/todos" },
  ( request, response, headers, ajaxSettings ) => {
    console.log( request.method );  //-> "get"
    console.log( request.url );     //-> "/todos"
    console.log( request.data );    //-> {complete: "true"}
  }
);

ajax( {url: "/todos?complete=true"} );

Templated url data will be added to the requestHandler's request argument's data property:

import {fixture, ajax} from "can";

fixture( { url: "/todos/{action}" },
  ( request, response, headers, ajaxSettings ) => {
    console.log( request.method );  //-> "post"
    console.log( request.url );     //-> "/todos/delete"
    console.log( request.data );    //-> {action: "delete"}
  }
);

ajax( {type: "POST", url:"/todos/delete"} );