Instantiate Angular JS service using - injector.get() - angularjs

Question

I have an Angular 1.x application. Now that there is a use case where in I have to access the Angular 1.x Services / Factories in ES6 Classes which are not part of or registered with Angular JS. In short I would want to do something like export an Angular Service and import in ES6 class. I know this is not directly possible but will there be a work around ?
So I have a service like
(function () {
angular.module('myApp').service('ServiceOne', function () {
return {
property: value
};
});
})();
and now there is an ES6 class another (service file)...
import angular from 'angular';
// const $injector = angular.injector(['ng', 'myApp']);
// const ServiceOne = $injector.get('ServiceOne');
// const ServiceTwo = $injector.get('ServiceTwo');
class Es6Service {
constructor() {
//this.serviceOne = ServiceOne;
//this.serviceTwo = ServiceTwo;
}
methodOne() {
// code
}
methodTwo() {
// code
}
}
export default Es6Service;
I know that injector.get('serviceName') can get us the service instance, in my case I am getting an error of unknown provider. My assumption is that the angular module reference is missing perhaps here.
If that is the case then how can I get the Module reference here ? or there is some other way to achieve this ?
Thanks

Answer 1

Looks strange but should work:
import angular from 'angular';
let _$injector;
angular.module('myApp').run($injector => _$injector = $injector);
class Es6Service {
methodOne() {
// Cannot call this method until angular initialize
return _$injector.get(...)
}