我需要使用FCM在我的项目中实现推送通知。我已经实现了后端,并且按预期工作。在Angular方面,我能够实现这两种功能(背景和前景),这时我唯一的问题是从推送通知中获取的有效负载没有显示在html文件中。
这是我用来用Angular(https://dev.to/mayurkadampro/angular-8-firebase-cloud-messaging-push-notifications-97a)实现FCM的文章。
这是我的消息传递服务文件:
import { Injectable } from '@angular/core';
import { BehaviorSubject } from 'rxjs';
import { AngularFireMessaging } from '@angular/fire/messaging';
@Injectable({
providedIn: 'root'
})
export class MessagingService {
currentMessage = new BehaviorSubject(null);
constructor(private angularFireMessaging: AngularFireMessaging) {
}
requestPermission() {
this.angularFireMessaging.requestToken.subscribe((token) => {
console.log('Permission granted! Save to the server!', token);
}, (error) => {
console.log(error);
})
}
receiveMessage() {
this.angularFireMessaging.onMessage((payload) => {
console.log('Message received. ', payload);
this.currentMessage.next(payload);
});
}
}
app.component.ts文件
import { Component, OnInit } from '@angular/core';
import { MessagingService } from './services/messaging.service';
@Component({
selector: 'app-root',
templateUrl: './app.component.html',
styleUrls: ['./app.component.less']
})
export class AppComponent implements OnInit {
title = 'pn';
message;
constructor(private _messagingSrv: MessagingService ) {}
ngOnInit() {
this._messagingSrv.requestPermission();
this._messagingSrv.receiveMessage();
this.message = this._messagingSrv.currentMessage;
}
}
最后是firebase-messaging-sw.js文件:
importScripts('https://www.gstatic.com/firebasejs/7.6.0/firebase-app.js');
importScripts('https://www.gstatic.com/firebasejs/7.6.0/firebase-messaging.js');
firebase.initializeApp({
apiKey: "XXXXXXXXXXXXXXXXX",
authDomain: "XXXXXXXXXXXXXXXXX",
databaseURL: "XXXXXXXXXXXXXXXXX",
projectId: "XXXXXXXXXXXXXXXXX",
storageBucket: "XXXXXXXXXXXXXXXXX",
messagingSenderId: "XXXXXXXXXXXXXXXXX",
appId: "XXXXXXXXXXXXXXXXX",
measurementId: "XXXXXXXXXXXXXXXXX"
});
const messaging = firebase.messaging();
项目中安装的Firebase版本与Service Worker中使用的版本相同。 (7.6.0)
答案 0 :(得分:1)
我遇到了类似的问题,并通过在Ang上使用ng serve -ssl true标志修复了问题 您必须使用https才能显示前台通知