<div aura:id="main" style="padding:15px;" class="slds-grid">

({
doInit : function(component, event, helper) {
    var action = component.get("c.findCase");
    action.setParams({
        recordId: component.get("v.recordId")
    });
    action.setCallback(this, function(data) {
        component.set("v.details", data.getReturnValue());
    });
    $A.enqueueAction(action);
  }
})