kinde-angular
Version:
Angular wrapper for the Kinde TypeScript SDK
56 lines • 11.6 kB
JavaScript
import { Inject, Injectable } from '@angular/core';
import { BehaviorSubject, filter, ReplaySubject, distinctUntilChanged, switchMap, defer, shareReplay, concatMap, of, scan, merge, mergeMap, combineLatestWith } from "rxjs";
import { KINDE_FACTORY_TOKEN } from "./kinde-client-factory.service";
import * as i0 from "@angular/core";
export class AuthStateService {
constructor(kindeClient) {
this.kindeClient = kindeClient;
/**
* A variant of Subject that requires an initial value and emits its current value whenever it is subscribed to.
* We use BehaviorSubject because we want the initial value to be true
*/
this.isLoadingSubject$ = new BehaviorSubject(true);
/**
* A variant of Subject that "replays" old values to new subscribers by emitting them when they first subscribe.
* We buffer the last emitted value and emit it to new subscribers if subscribed.
*/
this._accessToken$ = new ReplaySubject(1);
this._user$ = new ReplaySubject(1);
this.accessTokenStream$ = this._accessToken$.pipe(scan((acc, token) => ({
prev: acc.current,
current: token,
}), { prev: null, current: null }), filter(state => state.current !== state.prev));
this.isLoading$ = this.isLoadingSubject$.asObservable();
this.isAuthenticatedStream$ = this.isLoading$.pipe(filter(isLoading => !isLoading && this.kindeClient !== null), distinctUntilChanged(), switchMap(() => merge(defer(() => this.kindeClient.isAuthenticated()), this.accessTokenStream$.pipe(mergeMap(() => this.kindeClient.isAuthenticated())))));
this.isAuthenticated$ = this.isAuthenticatedStream$.pipe(distinctUntilChanged(), shareReplay(1));
this._userCache$ = this.isAuthenticatedStream$.pipe(filter(_ => this.kindeClient !== null), switchMap(isAuthenticated => isAuthenticated ? this.kindeClient.getUser() : of(null)), shareReplay(1));
this.user$ = this.isAuthenticatedStream$.pipe(filter(_ => this.kindeClient !== null), combineLatestWith(this._userCache$), concatMap(([isAuthenticated, cachedUser]) => {
if (cachedUser) {
return of(cachedUser);
}
return isAuthenticated ? this.kindeClient.getUserProfile() : of(null);
}));
this.accessToken$ = this.isAuthenticatedStream$.pipe(filter(_ => this.kindeClient !== null), concatMap(isAuthenticated => isAuthenticated ? this.kindeClient.getToken() : of(null)));
}
setIsLoading(isLoading) {
this.isLoadingSubject$.next(isLoading);
}
setAccessToken(accessToken) {
this._accessToken$.next(accessToken);
}
setUser(user) {
this._user$.next(user);
}
static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "18.2.1", ngImport: i0, type: AuthStateService, deps: [{ token: KINDE_FACTORY_TOKEN }], target: i0.ɵɵFactoryTarget.Injectable }); }
static { this.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: "12.0.0", version: "18.2.1", ngImport: i0, type: AuthStateService, providedIn: 'root' }); }
}
i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "18.2.1", ngImport: i0, type: AuthStateService, decorators: [{
type: Injectable,
args: [{
providedIn: 'root'
}]
}], ctorParameters: () => [{ type: undefined, decorators: [{
type: Inject,
args: [KINDE_FACTORY_TOKEN]
}] }] });
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{ Inject, Injectable } from '@angular/core';\nimport {\n  BehaviorSubject,\n  filter,\n  ReplaySubject,\n  distinctUntilChanged,\n  switchMap,\n  defer,\n  shareReplay,\n  concatMap,\n  of,\n  scan,\n  merge,\n  mergeMap,\n  combineLatestWith\n} from \"rxjs\";\nimport { KindeClient } from \"./interfaces/kinde-client.interface\";\nimport { KINDE_FACTORY_TOKEN } from \"./kinde-client-factory.service\";\nimport { UserType } from \"@kinde-oss/kinde-typescript-sdk\";\n\ninterface TokenStreamState {\n  prev: string | null;\n  current: string | null;\n}\n\n@Injectable({\n  providedIn: 'root'\n})\nexport class AuthStateService {\n  /**\n   * A variant of Subject that requires an initial value and emits its current value whenever it is subscribed to.\n   * We use BehaviorSubject because we want the initial value to be true\n   */\n  private isLoadingSubject$ = new BehaviorSubject<boolean>(true);\n  /**\n   * A variant of Subject that \"replays\" old values to new subscribers by emitting them when they first subscribe.\n   * We buffer the last emitted value and emit it to new subscribers if subscribed.\n   */\n  private _accessToken$ = new ReplaySubject<string>(1);\n\n  private _user$ = new ReplaySubject<UserType>(1);\n\n  private accessTokenStream$ = this._accessToken$.pipe(\n    scan((acc: TokenStreamState, token: string) => ({\n      prev: acc.current,\n      current: token,\n    }), { prev: null, current: null }),\n    filter(state => state.current !== state.prev),\n  );\n\n  isLoading$ = this.isLoadingSubject$.asObservable();\n  isAuthenticatedStream$ = this.isLoading$.pipe(\n    filter(isLoading => !isLoading && this.kindeClient !== null),\n    distinctUntilChanged(),\n    switchMap(() =>\n      merge(\n        defer(() => this.kindeClient!.isAuthenticated()),\n        this.accessTokenStream$.pipe(\n          mergeMap(() => this.kindeClient!.isAuthenticated()),\n        )\n      )\n    )\n  );\n\n  isAuthenticated$ = this.isAuthenticatedStream$.pipe(\n    distinctUntilChanged(),\n    shareReplay(1)\n  );\n\n  private _userCache$ = this.isAuthenticatedStream$.pipe(\n    filter(_ => this.kindeClient !== null),\n    switchMap(isAuthenticated =>\n      isAuthenticated ? this.kindeClient!.getUser() : of(null)\n    ),\n    shareReplay(1)\n  );\n\n  user$ = this.isAuthenticatedStream$.pipe(\n    filter(_ => this.kindeClient !== null),\n    combineLatestWith(this._userCache$),\n    concatMap(([isAuthenticated, cachedUser]) => {\n        if (cachedUser) {\n          return of(cachedUser)\n        }\n        return isAuthenticated ? this.kindeClient!.getUserProfile() : of(null)\n      }\n    ),\n  );\n\n  accessToken$ = this.isAuthenticatedStream$.pipe(\n    filter(_ => this.kindeClient !== null),\n    concatMap(isAuthenticated =>\n      isAuthenticated ? this.kindeClient!.getToken() : of(null)\n    ),\n  )\n\n  constructor(@Inject(KINDE_FACTORY_TOKEN) private kindeClient: KindeClient | null) {\n  }\n\n  setIsLoading(isLoading: boolean): void {\n    this.isLoadingSubject$.next(isLoading);\n  }\n\n  setAccessToken(accessToken: string): void {\n    this._accessToken$.next(accessToken);\n  }\n\n  setUser(user: UserType): void {\n    this._user$.next(user);\n  }\n}\n"]}