admin.messaging().sendToDevice() 运行但不起作用

如何解决admin.messaging().sendToDevice() 运行但不起作用

我完美地遵循了文档https://firebase.google.com/docs/cloud-messaging/send-message#send-messages-to-specific-devices，但我的手机上却没有收到任何通知，我是不是遗漏了什么？

const body = request.body;
    // console.log('bodySEn-->',JSON.stringify(body.sender))
    // console.log('bodyREC-->',JSON.stringify(body.receiverId))
    // console.log('body-->',JSON.stringify(body))
    try {
        admin
            .firestore()
            .collection(body.sender === 'customer' ? 'helpers' : 'customers')
            .doc(body.receiverId)
            .get()
            .then(async doc => {
                console.log("doc ? ",JSON.stringify(doc.exists))
                if (doc.exists) {
                    const user = doc.data();
                    
                    if (user) {
                        const payload = {
                            data: body.data,notification: body.notification,};

                        console.log("Payload ",JSON.stringify(payload))
                        console.log("TOKEN ",JSON.stringify(user.fcmToken))

                        

                        await admin.messaging().sendToDevice(user.fcmToken,payload);
                        //await saveNotification(payload);
                        response.status(200).json({ result: "Notification has been sent successfully." });
                    }
                    else {
                        throw Error("User not parsed.");
                    }
                }
                else {
                    throw Error("User not found.");
                }
            })
            .catch(error => {
                throw error;
            })

    } catch (error) {
        response.status(500).send(error);
    }
});