Accessing record ID in the Lightning component is very simple. Just use following things. Implements force:hasRecordId interface in the component as follows. <aura:component implements=”flexipage:availableForRecordHome,force:hasRecordId” access=”global”> Define an aura:attribute as follows. <aura:attribute name=”recordId” type=”String” description=”The ID of the record to be displayed. Provided by force:hasRecordId interface.”/>