我在Firebase云功能中有一项功能,它会检索用户的设备组ID以发送推送通知,并在发送推送通知后。如果函数只被调用一次,这很有效,但如果我有一个用户数组,我也想发送推送通知,sendPushNotification函数会返回错误:FAILED err= { RequestError: Error: read ECONNRESET
at new RequestError (/user_code/node_modules/request-promise/node_modules/request-promise-core/lib/errors.js:14:15)
每次尝试发送推送
根据我的理解ECONNRESET
意味着在完成操作之前连接在一端关闭,可以帮助/解释我为什么会这样:
这是我的代码:
function sendFollowNotification(snapshot) {
const notificationMsg = getFollowNotificationMsg() //returns a string
snapshot.forEach(function(singleUser, index) {
const userId = singleUser.key;
const userObject = singleUser.val();
console.log("will get device group")
if (index + 1 == snapshot.numChildren()) {
return getDeviceGroupNotificationKey(userId, "Discover new artists", notificationMsg, "", true);
} else {
getDeviceGroupNotificationKey(userId, "Discover new artists", notificationMsg, "", false);
}
}
function getDeviceGroupNotificationKey(groupId, notificationTitle, notificationBody, notificationSubject, shouldReturn) {
const pathToDeviceGroup = admin.database().ref('deviceGroups').child(groupId);
pathToDeviceGroup.once("value").then( function(snapshot) {
const deviceGroupObj = snapshot.val();
const notification_key = deviceGroupObj.notification_key;
console.log("got notification key")
console.log(notification_key)
if (notification_key !== undefined) {
return sendPushToDeviceGroupOld(notification_key, notificationTitle, notificationBody, "notificationKeyOld2", notificationSubject, shouldReturn);
} else {
return
}
}).catch(reason => {
console.log("user device group not there")
return
})
}
function sendPushToDeviceGroupOld(notification_key, title, body, subject, message, shouldReturn) {
console.log('sending push to ' + notification_key)
const serverKey = '-';
const senderId = '-';
const options = {
method: 'POST',
uri: 'https://fcm.googleapis.com/fcm/send',
headers: {
'Authorization': 'key=' + serverKey,
'project_id': senderId
},
body: {
to: notification_key,
data: {
subject: message
},
notification: {
title: title,
body: body,
badge: 1,
sound: "default",
},
priority : 'high',
content_available: true
},
json: true
};
return rqstProm(options)
.then((parsedBody) => {
console.log('SUCCESS response=', parsedBody);
return
})
.catch((err) => {
console.log('FAILED', err);
return
});
}