Reuseable Lightning Data Service Component

AccountsList.cmp

<aura:component extends="c:DataSvc" controller="AccountsListController">
	<aura:attribute name="rows" type="Object[]" description="The row data."/>
    <aura:attribute name="columns" type="List" default="[{label:'Id', fieldName: 'Id', type: 'text'},{label:'Name', fieldName: 'Name', type: 'text'}]"/>
	<aura:handler name="init" value="{!this}" action="{!c.doInit}"/>
    
    <lightning:datatable data="{!v.rows}" keyField="Id" columns="{!v.columns}"/>
    
</aura:component>

//CONTROLLER
({
	doInit : function(component, event, helper) {
        helper.callServer(component,"c.getAccounts",function(response){
            component.set("v.rows", response);
        },'',true);	
	}
})

AccountsListApp.app

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

AccountsListController.apex

public with sharing class AccountsListController {
	@AuraEnabled
    public static List<Account> getAccounts() {
        return [
            SELECT Id, Name
            from Account
            order by Name
        ];
    }
}

DataSvc.cmp

<aura:component abstract="true" extensible="true">
	{!v.body}
</aura:component>

//HELPER
({
    callServer : function(component,method,callback,params,isStoreable) {
        var action = component.get(method);
        if(isStoreable) {
            action.setStorable();
        }
        if (params) {
            action.setParams(params);
        }
      
        action.setCallback(this,function(response) {
            var state = response.getState();
            if (state === "SUCCESS") { 
                // pass returned value to callback function
                callback.call(this,response.getReturnValue());   
            } else if (state === "ERROR") {
                // generic error handler
                var errors = response.getError();
                if (errors) {
                    console.log("Errors", errors);
                    if (errors[0] && errors[0].message) {
                        throw new Error("Error" + errors[0].message);
                    }
                } else {
                    throw new Error("Unknown Error");
                }
            }
        });
    
        $A.enqueueAction(action);
    }
})