[Firebase] How to use the firebase .indexOn

How to use the firebase .indexOn

1. DB Example )

posts >

category > 

"USA" >

LGhGFr86ErZBaEaNtAd >

name : "brown"

point : "100"

...

"LA" >

LGhGFr86ErZBaEaNtAd >

name : "brown"

point : "100"

...

LGhGFr86ErZBaEaNtAd is a Key (some posts)

--> ps. var newPostKey = firebase.database().ref().child('posts').push().key;

2. indexOn Example)

"posts" : {

"category": {

"$location": {

".indexOn": ["point"]

}

}

}

good luck!

#firebase #index #indexon

reference : https://firebase.google.com/docs/database/security/indexing-data?hl=ko