Firebase query by date range

Question

My firebase data looks something like this:

{
  \"lambeosaurus\": {
    \"date\" : 1420753443,
    \"length\" : 12.5,
    \"weight\": 5000
  },
  \"stegosaur         


        

Answer 1

Looks like you can use the orderBychild() method to order by child key or property (i.e. weight, length, or date). And if you chain that using startAt() & endAt(), we can construct the query you're looking for:

var startDate = 14200000000;
var endDate = 14300000000;

ref.orderByChild("date").startAt(startDate).endAt(endDate)
  .on("child_added", function(snapshot){
    console.log("got the data!", snapshot);
  });