March 3, 2021
Here is the article.
Sending a message and getting an instant response without refreshing the page is something we take for granted. But in the past, enabling real-time functionality was a real challenge for developers. The developer community has come a long way from HTTP long polling and AJAX and has finally found a solution for building truly real-time apps.
This solution comes in the form of WebSockets, which make it possible to open an interactive session between a user’s browser and a server. WebSockets allow a browser to send messages to a server and receive event-driven responses without having to poll the server for a reply.
For now, WebSockets are the number one solution for building real-time applications: online games, instant messengers, tracking apps, and so on. This guide explains how WebSockets operate and shows how we can build WebSocket applications in the Go programming language. We also compare the most popular WebSocket libraries so you can choose the best one for your needs.
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