如何在 Firebase Web 应用程序中通过密钥（手机号码）获取数据？

Question

I have record in User table in firebase and I want data by mobile number. mobile number is primary key in user table .

I have code for getting data from table but in that code I am using loop so process taking time to get any one record from table. I have more then 3000 records in my users table. anyone have idea that how can I get a single record by key in Firebase table using javascript or jquery?

[Here is my table Structure Image]

Answer 1

firebase.database().ref('users').child('1234567890').once('value').then( function(snap) {
    const user = snap.val()
    const userKey = snap.key
})

So using this, you can fetch the particular user you want. snap.val() will give you user object and snap.key will give the key (in this case key = 1234567890). This is the code for javascript.