sencha touch - ajax call to server (url , extra parameter formation)

I am using this to get the result from server

controller.allVisitStore =  new Ext.data.Store({ 
                model: 'allVisit',
                autoLoad : true,
                proxy: {
                    type: 'ajax',
                    id: 'allvisit_app_localstore',
                    url: '/RadMobApp/api',
                    extraParams:{   
                        action:'query',
                        queryName:'GET_ALL_VISIT',
                        authToken: localSto开发者_如何学编程rage.getItem("auth_token"),
                        patTicketId: localStorage.getItem("patientId"),
                        retFormat:'XML',
                        keyValuePair:'yes'
                    },
                    // the return will be XML, so lets set up a reader
                    reader: new Ext.data.XmlReader({
                        // records will have an "T4" tag
                        record: 'data'
                    })
                }
            });

but i am not getting any thing.But i formed this url in browser and checked this i got the correct result. now here i want to check is there any problem in the url formation.How to check the url formation with extra parameter which is pass through ajax. I have checked in Inspect element-> network -> api there is no any api request found there.Is anything wrong in my code. Thanks in advance...

Use Firebug for Firefox or Chrome's developer tools to see what's going on when that store attempts to load itself. My hunch is that your url is incorrect and should be url: '/api' because RadMobApp is probably your app root.