# ABP OAuth Package

The authentication functionality has been moved from @abp/ng.core to @abp/ng.ouath since v7.0.

If your app is version 8.3 or higher, you should include "provideAbpOAuth()" in your app.module.ts as an providers after "provideAbpCore()
".

Those abstractions can be found in the @abp/ng-core packages.

- `AuthService` (the class that implements the IAuthService interface).
- `NAVIGATE_TO_MANAGE_PROFILE` Inject token.
- `ApiInterceptor` (the class that implements the IApiInterceptor interface).

Those base classes are overridden by the "AbpOAuthModule" for oAuth. There are also three functions provided with AbpOAuthModule.

- `PIPE_TO_LOGIN_FN_KEY` a provide that calls a function when the user is not authenticated. The function should be PipeToLoginFn type.
- `SET_TOKEN_RESPONSE_TO_STORAGE_FN_KEY` a provide that calls a function when the user is authenticated. The function should be SetTokenResponseToStorageFn type.
- `CHECK_AUTHENTICATION_STATE_FN_KEY` a provide that calls a function when the user is authenticated and stores the auth state. The function should be CheckAuthenticationStateFn type.
  The tokens and interfaces are in the `@abp/ng.core` package but the implementation of these interfaces is in the `@abp/ng.oauth` package.

If you want to make your own authentication system, you must also change these 'abstract' classes.

ApiInterceptor is provided by `@abp/ng.core` but overridden with `@abp/ng.oauth`. The ApiInterceptor adds the token, accepted-language, and tenant id to the header of the HTTP request. It also calls the http-wait service.