嗨,我有一个问题,连接Firebase(FiRestore)到我的Angular 应用程序.这是我第一次try 连接Firebase,所以我遵循了谷歌的教程. https://developers.google.com/codelabs/building-a-web-app-with-angular-and-firebase#10个
在步骤11中,我必须导入AngularFirestore模块,我已经这样做了:
import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { AppRoutingModule } from './app-routing.module';
import { AppComponent } from './app.component';
import { MapComponent } from './map/map.component';
import {BrowserAnimationsModule} from "@angular/platform-browser/animations";
import { NavbarComponent } from './navbar/navbar.component';
import { CodeComponent } from './navbar/code/code.component';
import { ManagerComponent } from './manager/manager.component';
import { initializeApp,provideFirebaseApp } from '@angular/fire/app';
import { environment } from '../environments/environment';
import { provideFirestore,getFirestore } from '@angular/fire/firestore';
import {AngularFireModule} from "@angular/fire/compat";
import {AngularFirestoreModule} from "@angular/fire/compat/firestore";
@NgModule({
declarations: [
AppComponent,
MapComponent,
NavbarComponent,
CodeComponent,
ManagerComponent
],
imports: [
BrowserModule,
AppRoutingModule,
BrowserAnimationsModule,
provideFirebaseApp(() => initializeApp(environment.firebase)),
provideFirestore(() => getFirestore()),
AngularFireModule.initializeApp(environment.firebase),
AngularFirestoreModule
],
providers: [
ManagerComponent,
CodeComponent
],
bootstrap: [AppComponent]
})
export class AppModule { }
导入后,我遇到了以下问题:
Error: node_modules/@angular/fire/compat/firestore/interfaces.d.ts:13:18 - error TS2430: Interface 'DocumentSnapshotExists<T>' incorrectly extends interface 'DocumentSnapshot<DocumentData>'.
The types returned by 'data(...)' are incompatible between these types.
Type 'T' is not assignable to type 'DocumentData | undefined'.
Type 'T' is not assignable to type 'DocumentData'.
13 export interface DocumentSnapshotExists<T> extends firebase.firestore.DocumentSnapshot {
~~~~~~~~~~~~~~~~~~~~~~
node_modules/@angular/fire/compat/firestore/interfaces.d.ts:13:41
13 export interface DocumentSnapshotExists<T> extends firebase.firestore.DocumentSnapshot {
~
This type parameter might need an `extends firebase.firestore.DocumentData` constraint.
node_modules/@angular/fire/compat/firestore/interfaces.d.ts:13:41
13 export interface DocumentSnapshotExists<T> extends firebase.firestore.DocumentSnapshot {
~
This type parameter might need an `extends firebase.firestore.DocumentData | undefined` constraint.
Error: node_modules/@angular/fire/compat/firestore/interfaces.d.ts:23:18 - error TS2430: Interface 'QueryDocumentSnapshot<T>' incorrectly extends interface 'QueryDocumentSnapshot<DocumentData>'.
The types returned by 'data(...)' are incompatible between these types.
Type 'T' is not assignable to type 'DocumentData'.
node_modules/@angular/fire/compat/firestore/interfaces.d.ts:29:33
29 export interface DocumentChange<T> extends firebase.firestore.DocumentChange {
~
This type parameter might need an `extends firebase.firestore.DocumentData` constraint.
× Failed to compile.
我不知道如何解决我的问题,也不知道如何以另一种方式连接FiRestore数据库. 谢谢你的帮助!
下面也是我的app.Component.ts:
import { Component } from '@angular/core';
import {AngularFirestore} from "@angular/fire/compat/firestore";
import {Observable} from "rxjs";
@Component({
selector: 'app-root',
templateUrl: './app.component.html',
styleUrls: ['./app.component.css']
})
export class AppComponent {
toMap:boolean = true;
items: Observable<any[]>;
constructor(firestore: AngularFirestore) {
this.items = firestore.collection('items').valueChanges();
}
switchToMap(){
this.toMap = !this.toMap;
}
}
我试图遵循谷歌的一个教程,但遇到了问题,上面的字段中描述了这个问题. https://developers.google.com/codelabs/building-a-web-app-with-angular-and-firebase#10个