Get RecordTypeID by Name for Lightning Component

Question

I am beginning to look at using a Lightning Component to quick create records, I have been able to get quite far but have got a little stuck when trying to set the record type id of the destination record (it's a case and we have 15+ record types and I want to be able to set it alongside a lot of other predefined field values).

This is what I have got so far:

Apex Controller

public class QuickActionsController {
   @AuraEnabled        
    //Get Record Type ID
    public static Id getCaseRecordTypeID() {
        Id CaseRTID = Schema.SObjectType.Case.getRecordTypeInfosByName().get('RTYPENAME').getRecordTypeId();
        return CaseRTID;
    } 
}

Javascript Controller

    createCase1: function (component) {
        //Get Record Type Id 
        var CaseRecordTypeID = component.get("c.CaseRecordTypeID ");
        var createRecordEvent = $A.get('e.force:createRecord');

        if ( createRecordEvent ) {
            createRecordEvent.setParams({
                'entityApiName': 'Case',
                'recordTypeId': CaseRecordTypeID ,
            });
            createRecordEvent.fire();
        } else {
            /* Create Record Event is not supported */
            alert("Case creation not supported");
        }
    },...

This is my first lightning component, trying to make a quick actions menu to let users create records with fewer clicks/fields etc.

Sorry edit, the error states:

Error on parameter recordTypeId: java://java.lang.String

Answer 1

    var CaseRecordTypeID = component.get("c.CaseRecordTypeID"); 

This doesn't invoke the server-side controller action getCaseRecordTypeID(). You need to specify the full method name getCaseRecordTypeID - unlike in Visualforce. But then, once you have the right parameter to component.get(), CaseRecordTypeID isn't the return value of your Apex. It's a reference to the server controller action. You need to invoke the action asynchronously and use its return value in your callback method, along these lines (freely stolen/adapted from Trailhead):

    var action = component.get("c.getCaseRecordTypeID");
    action.setCallback(this, function(response) {
        var state = response.getState();
        if (state === "SUCCESS") {
            // do something with response.getReturnValue(), such as firing your create event here.
        }
        else {
            console.log("Failed with state: " + state);
        }
    });

    $A.enqueueAction(action);