Reading-4-13.md

Message Queues

Socket.io Chat Example

1. It creates a connection between a client and a server that allows text to be passed back and forth between them.

2. Console logs record when a user connects or disconnects as well as when a message is sent.

3. Broadcast sends an event to everyone except the sender.

Rooms

1. A room is a channel that sockets can join and leave.

2. socket.join('room name') joins a room

3. socket.leave('room name') leaves a room

Namespaces

1. A Namespace is a communication channel that allows you to split the logic of your application over a single shared connection

2. Each namespace as its own event handlers, rooms, and middlewares.

3. If some functionality is only supposed to be available to authorized users, a namespace can separate that logic from the rest of the app.