Create DataSouce using API

I want to create DataSource using ColdFusion Administrator API. All my credential are correct that's for sure. I have followed this tutorial and also Adobe Tutorial. I don't know what am doing wrong in here.

<cfset adminAPI = createObject( 'component', 'cfide.adminapi.administrator' ) /> <cfset adminAPI.login( 'CFAdminPass', 'admin' ) /> <cfscript>   dsnAPI = createObject( 'component', 'cfide.adminapi.datasource' );   dsn = {   driver = 'mysql5',   name = 'cfdb',   host = 'localhost',   port = '3306',   database = 'cfdb',   username = 'root',   password = 'mysqlpass'   };   // Finally, we save the new datasource   dsnAPI.setMySQL5( argumentCollection = dsn ); </cfscript>