从firestore获取数据时，如何创建使用用户uid的服务？angular/firestore

npm install @angular/fire firebase

ng generate service firestore

import { Injectable } from '@angular/core';
import { AngularFirestore } from '@angular/fire/firestore';
import { Observable } from 'rxjs';

@Injectable({
  providedIn: 'root'
})
export class FirestoreService {

  constructor(private firestore: AngularFirestore) { }

  getData(uid: string): Observable<any> {
    return this.firestore.collection('data').doc(uid).valueChanges();
  }
}

import { Component } from '@angular/core';
import { FirestoreService } from './firestore.service';

@Component({
  selector: 'app-root',
  template: `
    <div *ngIf="data$ | async as data">
      {{ data | json }}
    </div>
  `,
})
export class AppComponent {
  data$: Observable<any>;

  constructor(private firestoreService: FirestoreService) {
    const uid = '用户的uid'; // 替换为实际的用户uid
    this.data$ = this.firestoreService.getData(uid);
  }
}