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:
1 2 3 4 | 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); |
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