How to Create URL structure in ionic 2

Hi i want to create URL structure just like without using
this.navCtrl.push(‘HomePage’) Because in my project i am using this.navCtrl.push(HomePage ,{}); i which there is too many i am passing from one page to another page , my project is too big that’s why i don’t want to changes from this.navCtrl.push(HomePage ,{}); to this.navCtrl.push(‘HomePage’) please help me