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golang and angularjs tutorial: part 2 - websockets (long & detailed)

this tutorial builds upon the foundational knowledge established in part 1 (setting up the environment, basic api calls). we'll dive into implementing real-time communication between a go server and an angularjs client using websockets. this will enable features like live updates, chat applications, and collaborative editing.

*prerequisites:*

*completed part 1 (basic api setup):* ensure you have a basic go server and angularjs client communicating via http requests. you should be familiar with routing in go using `net/http` or a framework like `mux`, and basic angularjs concepts like controllers, services, and two-way data binding.
*go installation:* go 1.16 or later is recommended.
*node.js and npm:* needed for running the angularjs application.
*familiarity with websockets:* a basic understanding of how websockets differ from http is helpful. websockets provide persistent, full-duplex communication channels over a single tcp connection.

*goals:*

establish a websocket connection between the go server and the angularjs client.
implement message sending from the client to the server and vice versa.
display real-time updates on the client-side.
handle websocket connection management (opening, closing, and errors).

*outline:*

1. *server-side (go): implementing the websocket handler*
using the `gorilla/websocket` library.
handling websocket connections.
reading and writing messages.
broadcasting messages to connected clients.
handling client disconnections.
2. *client-side (angularjs): connecting and communicating with the websocket*
creating a websocket service.
establishing the websocket connection.
sending messages to the server.
receiving and processing messages from the server.
displaying real-time updates in the ui.
handling connection errors and ...

#Golang #AngularJS #numpy
Golang
AngularJS
tutorial
websockets
real-time communication
backend development
frontend framework
web application
API integration
asynchronous programming
event-driven architecture
client-server model
live data updates
WebSocket protocol
Golang WebSocket library