Question

我一步一步地遵循了这些步骤来应用Firebase函数

1-我使用android studio连接到我的Firebase并连接到云消息传递并安装了依赖项

2-我通过终端安装了Firebase工具并登录（直到我编写此代码后，它才第一次起作用）

alias firebase="`npm config get prefix`/bin/firebase"

3-我在终端机firebase init中编写了代码，然后选择我的项目和javascript，然后选择是安装npm

4-我确保我的index.js位于functions文件夹内

5-我用崇高的文字编写了这段代码以测试通知

'use strict'

const functions = require('firebase-functions');
const admin = require ('firebase-admin');

admin.initializeApp（functions.config（）。firebase）;

exports.sendNotification = functions.database.ref('/Notifications/{receiver_id}/{notification_id}')
    .onWrite(event =>{

        const receiver_id = event.params.receiver_id;
        const notification_id = event.params.notification_id;

        console.log('We have a notification to send to : ',  receiver_id);

        if(!event.data.val()){
            return console.log('A notification has been deleted from the database : ',notification_id);
        }

        const deviceToken = admin.database().ref(`/Users/${receiver_id}/deviceToken`).once('value');

        return deviceToken.then(result =>{
            const token_id = result.val();
            const payload = {

                notification:{
                    title: "Friend Request",
                    body: "you have received a new friend request",
                    icon: "default"
                }
            };

            return admin.messaging().sendToDevice(token_id, payload)
                        .then(response =>{
                            console.log('This was the notification feature.');
                        });
        });
    });

Blockquote

6-然后我使用firebase deploy进行了部署，并等待了30秒

7-我在2个设备上安装了该应用程序并清理了数据库。最后，firebase的功能部分中什么都没有显示

Answer 1

您是否尝试过此命令“ firebase deploy --only functions”？

我做的一切正确，但是firebase功能无法正常工作

1 个答案: