Pass parameters using Aura Method Lightning

Child Component Code Snippet : AuraMethodChildCMP.cmp

<aura:component implements="force:appHostable,flexipage:availableForAllPageTypes,flexipage:availableForRecordHome,force:hasRecordId,forceCommunity:availableForAllPageTypes,force:lightningQuickAction" access="global" > <aura:method name="auraMethod" action="{!c.getAurMethodProperties}"> <aura:attribute name="firstName" type="String" default="Fazurulla"></aura:attribute> <aura:attribute name="lastName" type="String" default="Ganganapalli"></aura:attribute> </aura:method> </aura:component>

JS:

({ getAurMethodProperties : function(component,event,helper){ alert(event.getParam('arguments').firstName); alert(event.getParam('arguments').lastName); } })

Parent Component Code Snippet : AuraMethodParentCMP.cmp

<aura:component implements="force:appHostable,flexipage:availableForAllPageTypes,flexipage:availableForRecordHome,force:hasRecordId,forceCommunity:availableForAllPageTypes,force:lightningQuickAction" access="global" > <div class="slds-m-around_xx-large"> <c:AuraMethodChildCMP aura:id="childCmp"/> <lightning:button variant="brand" label="Submit" onclick="{!c.callAuraMethod}" /> </div> </aura:component>

JS:

({ callAuraMethod : function(component, event, helper) { var childComponent = component.find("childCmp").auraMethod(); } })

APP: AuraMethodAPP.app

<aura:application extends="force:slds"> <c:AuraMethodParentCMP></c:AuraMethodParentCMP> </aura:application>