Angular & Signals (283 Qs)•Part 6: Decorators, Dependency Injection & Tooling (124 - 150)
What is a DI token?
A DI token is a lookup token associated with a dependency provider in dependency injection system. The injector maintains an internal token-provider map that it references when asked for a dependency and the DI token is the key to the map. Let's take example of DI Token usage,
javascript
const BASE_URL = new InjectionToken<string>('BaseUrl');
const injector =
Injector.create({providers: [{provide: BASE_URL, useValue: 'http://some-domain.com'}]});
const url = injector.get(BASE_URL);