Dynamic content display

Ionic Framework ionic-v3
1

In my ionic project, I am getting html in json dynamically as below:

@ViewChild('main', { read: ViewContainerRef }) entry: ViewContainerRef;

ngOnInit(){	
	this.API.get_item_REST().then((res)=>{
		let myTemplate = res['html']; //Simple html: <div>Test</div>		
		
		@Component({ 
			template: myTemplate 
		})

		class dynamicComponent {
			constructor(){}				
		}

		@NgModule({
			imports: [BrowserModule,IonicModule],
			declarations: [dynamicComponent]
		})

		class dynamicModule {};

		const mod = this.compiler.compileModuleAndAllComponentsSync(dynamicModule);

		const factory = mod.componentFactories.find((comp) =>
			comp.componentType === dynamicComponent
		);		
		this.entry.createComponent(factory);	
		
	})
};

It works fine on ionic serve -l but when I build it ionic cordova build android --prod and test it on the phone, it doesn’t show any dynamic content.

Any thoughts?