ng-cli & angular4 & firebase でtwitter連携

ほぼ↓にあるとおりにやればいいんだけど、ちょっと変えないと動かなかったのでメモ

github.com

app.module.ts

import { BrowserModule } from '@angular/platform-browser';
import { NgModule } from '@angular/core';
import { FormsModule } from '@angular/forms';
import { HttpModule } from '@angular/http';

import { AppComponent } from './app.component';
import { AngularFireModule } from 'angularfire2';
import { environment } from '../environments/environment';
import { AngularFireDatabaseModule } from 'angularfire2/database';
import { AngularFireAuthModule } from 'angularfire2/auth';


@NgModule({
  declarations: [
    AppComponent
  ],
  imports: [
    BrowserModule,
    FormsModule,
    HttpModule,
    AngularFireModule.initializeApp(environment.firebase),
    AngularFireDatabaseModule, // imports firebase/database, only needed for database features
    AngularFireAuthModule, // imports firebase/auth, only needed for auth features
  ],
  providers: [],
  bootstrap: [AppComponent]
})
export class AppModule { }

app.component.ts

import { Component } from '@angular/core';
import { AngularFireDatabase, FirebaseListObservable } from 'angularfire2/database';
import { Observable } from 'rxjs/Observable';
import { AngularFireModule } from 'angularfire2';
import { AngularFireAuthModule, AngularFireAuth } from 'angularfire2/auth';

import * as firebase from 'firebase/app';

@Component({
  selector: 'app-root',
  templateUrl: './app.component.html',
  styleUrls: ['./app.component.css']
})
export class AppComponent {
    user: Observable<firebase.User>;
    constructor(public afAuth: AngularFireAuth) {
      this.user = afAuth.authState;
    }
    login() {
      this.afAuth.auth.signInWithPopup(new firebase.auth.TwitterAuthProvider());
    }
    logout() {
      this.afAuth.auth.signOut();
    }
}

app.component.html

<button (click)="login()">Login</button>
<button (click)="logout()">Logout</button>

{{ (user | async)?.displayName }}

{{ (user | async)?.displayName }} のところは Async pipe というものを利用していて、?は値があればdisplayNameを呼び出し、なければ呼ばないという感じ

Angular2によるモダンWeb開発 TypeScriptを使った基本プログラミング