how to increase value in Realtime Database

Question

 const dataFromDbUser = admin.database().ref('Base/' + 'users/'+ userId);

 dataFromDbUser.on('value',(item)=>{
 item.val().money //10
 })

how can i increase the value of money? Thank you

using node.js

this is what the base looks like

Base:{
   users:{
      22333443:{
         money:10
      }
   }
}

score 0 · Accepted Answer · answered May 23 '22 at 23:13

0

That sounds like a task for ServerValue.increment, so I recommend reading the documentation on atomically incrementing a value?

This also works from the Admin SDKs. So if you're having a problem making it work, please edit your question to show a minimal repro.

answered May 23 '22 at 23:13

1

admin.database().ref('Base/' + 'users/'+ userId).update({ money: admin.database.ServerValue.increment(10) }); works, thanks a lot))) – Eduard May 24 '22 at 07:42

1 Answers1