- Basic chat Applications with Socket IO
- Content
- Introduction
- Step #1: Project initialization1.1
- You can run this example directly in your browser1.1.1
- Step #1: Project initialization1.2
- Step #1: Project initialization1.3
- Step #2: Serving HTML2
- You can run this example directly in your browser2.2.1
- Step #3: Integrating Socket.IO
- Step #4: Emitting events
- You can run this example directly in your browser 4.1
- Step #5: Broadcasting 5.1
- Step #5: Broadcasting 5.2
What you'll learn
- A Beginner's Guide to Real-Time Chat Web Development
- node js Real-Time Chat
- Socket IO in Action: Building Real-Time Apps javascript
- Geared towards students and enthusiastic individuals interested in real-time web development
- Javascript node js Real-Time Chat
Description
Lesson Title: Introduction to Socket IO
Objective: By the end of this lesson, students will understand the basics of Socket IO and its significance in real-time web applications.
Socket IO is an open-source, cross-platform library that provides full-duplex bidirectional communication between a client and a server based on events. It is built on the WebSocket protocol, providing additional capabilities such as automatic reconnection and fallback to HTTP long polling where WebSockets cannot be used.
Automatic reconnection
Under some particular conditions, the WebSocket connection between the server and the client can be interrupted with both sides being unaware of the broken state of the link.
That's why Socket IO includes a heartbeat mechanism, which periodically checks the status of the connection.
And when the client eventually gets disconnected, it automatically reconnects with an exponential back-off delay, in order not to overwhelm the server.
Packet buffering
The packets are automatically buffered when the client is disconnected, and will be sent upon reconnection.
More information
How it works
The bidirectional channel between the Socket IO server (Node js) and the Socket IO client (browser, Node js, or another programming language) is established with a WebSocket connection whenever possible, and will use HTTP long-polling as fallback.
Materials:
- A computer with Node.js installed
- Internet access
- Code editor (e.g., Visual Studio Code)
- Node js
- Javascript
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About the instructors
- 4.25 Calificación
- 537 Estudiantes
- 2 Cursos
Jittavee somsri
Teacher
Head of the Information Technology Department and teacher
Working at Kanchanaphisek Technical College, Mahanakhon.
Preparation of teaching plans, class schedules, teaching schedules.
I have 27 years of experience working as a teacher.
I have good experience working as a teacher and teaching design.
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