Firestore query by date range

Question

I need the help to query long collection with date range. See the below example document. I wanna query startTime field using date range.

Answer 1

For everyone recently using firbase firestore. There's a differency depending on your settings of your firebase implentation (depending on the firebase version).

Before, firestore was saving Timestamp as a Date, however as described here in the docs the will be replaced soon by a Timestamp object. See the Timestamp docs here.

You can force your implementation already by adding a setting in your code to force firebase to use Timestamp objects instead of Date like this example:

var firebaseApp = firebase.initializeApp({
    apiKey: [APIKEY],
    authDomain: [FIREBASEAPPDOMAIN],
    projectId: [PROJECTID]
});

var firestore = firebase.firestore();
var settings = { timestampsInSnapshots: true }; // force Timestamp instead of Date
firestore.settings(settings);