- Firebase Tutorial
- Firebase - Home
- Firebase - Overview
- Firebase - Environment Setup
- Firebase - Data
- Firebase - Arrays
- Firebase - Write Data
- Firebase - Write List Data
- Firebase - Write Transactional Data
- Firebase - Read Data
- Firebase - Event Types
- Firebase - Detaching Callbacks
- Firebase - Queries
- Firebase - Filtering Data
- Firebase - Best Practices
- Firebase - Email Authentication
- Firebase - Google Authentication
- Firebase - Facebook Authentication
- Firebase - Twitter Authentication
- Firebase - Github Authentication
- Anonymous Authentication
- Firebase - Offline Capabilities
- Firebase - Security
- Firebase - Deploying
- Firebase Useful Resources
- Firebase - Quick Guide
- Firebase - Useful Resources
- Firebase - Discussion
Firebase - Offline Capabilities
In this chapter, we will show you how to handle the Firebase connection state.
Check Connection
We can check for connection value using the following code.
index.js
var connectedRef = firebase.database().ref(".info/connected"); connectedRef.on("value", function(snap) { if (snap.val() === true) { alert("connected"); } else { alert("not connected"); } });
When we run the app, the pop up will inform us about the connection.
By using the above given function, you can keep a track of the connection state and update your app accordingly.
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