<aura:component implements="lightning:actionOverride">
        <lightning:recordEditForm aura:id="newLeadForm"
                           objectApiName="Lead">
        <lightning:messages />
        <lightning:inputField fieldName="Name" />
            <lightning:inputField fieldName="Phone" />
            <lightning:inputField fieldName="Email" />
            <lightning:inputField fieldName="Company" />
        <lightning:button class="slds-m-top_small" type="submit" label="Create new" />
    </lightning:recordEditForm>
</aura:component>

({
    handleLoad : function(component, event, helper) {
        console.log('handle handleLoad');
        component.set("v.showSpinner", false);
    },
    handleSubmit : function(component, event, helper) {
        event.preventDefault(); // Prevent default submit
        var fields = event.getParam("fields");

        component.find('newLeadForm').submit(fields); // Submit form
        console.log('handle handleSubmit');
    },
    handleSuccess : function(component, event, helper) {
        console.log('record updated successfully');


        component.set("v.showSpinner", false);
    },
})