Angular 2: Call service before bootstrap

Question

When bootstrapping my Angular 2 (v2.4) I am trying to run a function which will automatically authorise the user before the application loads. However, this does not seem to be

Answer 1

Add the services it depends on to the provider list you already have.

...
platformBrowserDynamic().bootstrapModule(AppModule, {
     providers: [ UserRepository, SessionManager, HttpModule,
    {
        provide: APP_INITIALIZER,
        useFactory: auth,
        deps: [UserRepository, SessionManager, HttpModule],
        multi: true
    }
]});
...

https://github.com/angular/angular/blob/4.0.0/packages/core/src/linker/compiler.ts#L90-L109

for compiler options you provide an object that has providers on it. This should now compile with it understanding the classes you want to use for the factory.

As a note you could also do this in your appmodule in its provider list instead of doing it on the bootstrap compiler options