Working with WebSocket
Learn to use WebSocket in Flutter.
We'll cover the following...
We'll cover the following...
Introduction
There might be cases where we need to implement real-time communication in Flutter—for example, when building a chat or stock trading application. WebSocket offers real-time two-way communication between clients and servers.
The alternative to WebSocket is polling, where instead of delivering messages in real-time to the client, the clients keep checking the server after a time interval. Polling is an option that could work for your application, but this takes a lot of computing resources, especially on mobile, which will drain the device’s battery.
We’ll work on the following app in this lesson:
name: websockets
description: A new Flutter application.
publish_to: 'none' # Remove this line if you wish to publish to pub.dev
version: 1.0.0+1
environment:
sdk: ">=2.12.0 <3.0.0"
dependencies:
flutter:
sdk: flutter
cupertino_icons: ^1.0.2
# TODO-1: Add packages
dev_dependencies:
flutter_test:
sdk: flutter
flutter_lints: ^1.0.0
flutter:
uses-material-design: true
WebSocket app initial code