在Firebase数据库更改值时创建推送通知 [英] Create push notification when value in firebase database change
问题描述
我想在我的firebase数据库中的值发生更改时向用户发送推送通知。这是我的数据库
$ $ $
战斗{
00000111-062B3333-4046-4FB4 -A37-C2B05853E497:{
BattleProgress:,
Player1:lzsPuNwHbIZI1J8k40FspYRV4XQ2,
Player2:tHNBif9csWNCOuftAGLAqvLWNUw1,
Score 0-0,
转:1
}
},
users:{
lzsPuNwHbIZI1J8k40FspYRV4XQ2:{
Coins :1,
Dollars:0,
FBID:ID,
GamesLost:0,
GamesWon:0,
name:Name
},
tHNBif9csWNCOuftAGLAqvLWNUw1:{
硬币:0,
美元:0,
FBID: B,B,B,B
可以说,Turn的值发生了变化,然后我想要发送一个推送通知给这个玩家是谁呢?但是,如何在用户关闭应用程序时检查Turn的值是否发生了变化?我已经阅读了一些关于Firebase Cloud Messaging的内容,但是看起来似乎不能找到答案...
您可以使用Cloud Functions在Firebase中执行此操作。查看 https://firebase.google.com/docs/functions/use-cases 和 https://firebase.google.com/docs/functions/database-事件获取更多信息。
I want to send a push notification to the user when a value in my firebase database change. this is my database
{
"Battles" : {
"00000111-062B3333-4046-4FB4-AA37-C2B05853E497" : {
"BattleProgress" : "",
"Player1" : "lzsPuNwHbIZI1J8k40FspYRV4XQ2",
"Player2" : "tHNBif9csWNCOuftAGLAqvLWNUw1",
"Score" : "0-0",
"Turn" : 1
}
},
"users" : {
"lzsPuNwHbIZI1J8k40FspYRV4XQ2" : {
"Coins" : 1,
"Dollars" : 0,
"FBID" : "ID",
"GamesLost" : 0,
"GamesWon" : 0,
"name" : "Name"
},
"tHNBif9csWNCOuftAGLAqvLWNUw1" : {
"Coins" : 0,
"Dollars" : 0,
"FBID" : "ID",
"GamesLost" : 0,
"GamesWon" : 0,
"name" : "Name"
}
}
}
So lets say, the value of "Turn" changes, then I want a push notification sent out to the player whos turn it is. But how can I check if the value of "Turn" changes when the user shuts down the app?
I've read a bit about Firebase Cloud Messaging, but cant seem to find the answar...
You can do this with Firebase using Cloud Functions. Check out https://firebase.google.com/docs/functions/use-cases and https://firebase.google.com/docs/functions/database-events for more information.
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