In traditional websites, when a user performs an action or opens a page, the browser sends an HTTP request to the server and waits for a response. After the server sends the response, the communication ends. To update the data on the page, the user must refresh the page or background scripts must constantly send new requests. However, waiting for a page to refresh when tracking live orders on e-commerce platforms or viewing real-time player lists on game servers negatively impacts the user experience.
This is where WebSockets technology comes into play. Opening a bidirectional and persistent communication channel, the WebSocket architecture allows data to be delivered to the client the moment a change occurs on the server. In this article, we detail the logic of WebSockets, the performance differences compared to traditional methods, and their use cases in game and web projects.
Why Is WebSocket Technology Needed?
The classic HTTP architecture is client-driven. The server cannot send data unless the client requests it. In the past, when real-time display of data such as live order status, instant chat messages, or game server statistics was required, developers resorted to polling (periodic querying).
In the polling method, the browser asks the server "Is there any new data?" at specific second intervals. If there is no new state on the server, the response returns as "No". Each HTTP query means establishing a new connection, header overhead, and server resource consumption. In a scenario where thousands of users are on the page simultaneously, this creates a significant load on the server.
WebSockets solve this problem by keeping the connection open continuously. A single TCP connection is established between the client and the server, and the parties can instantly send messages to each other whenever data transfer is needed. For more information, you can read our website vs web application guide.
How WebSockets Work: Handshake and Bidirectional Communication
WebSocket communication starts with a standard HTTP request. This process is called a Handshake. The process consists of the following steps:
- The client sends a request to the server with special HTTP headers. This request includes
Upgrade: websocketandConnection: Upgradestatements. - If the server supports the WebSocket protocol, it returns a
101 Switching Protocolsresponse. - The connection is upgraded from the HTTP protocol to the WebSocket protocol (ws:// or wss:// for secure connections).
- Once the communication channel is open, data exchange continues in small binary or text-based data frames.
While HTTP requests carry hundreds of bytes of header information in every packet, WebSocket data packets carry only a few bytes of header overhead. This keeps bandwidth usage to a minimum.
Use Cases in Game Servers and Web Applications
The need for real-time data streaming plays a critical role in many different platforms today. Game server administrators and businesses use this infrastructure for various purposes.
Game Servers and FiveM Integrations
On game servers such as FiveM, Minecraft, and Rust, player counts, real-time map positions, and server statuses change constantly. Web-based live maps (LiveMap), CAD/MDT systems, or live player panels on websites are powered by WebSocket architecture.
- Real-Time Player Count and List: Player joins or departures on the server are immediately reflected on the website counter.
- Live Map Tracking: On roleplay servers, the locations of police or ambulance units on the map are updated live on the web interface.
- Server Status Notifications: Server restarts or technical announcements are delivered instantly to the web panel.
You can check out our FiveM script development services offering custom solutions for your gaming infrastructure.
Web Applications and E-Commerce
On an e-commerce platform, when a user's order status changes from "Preparing" to "Shipped", the page should update without refreshing. Similarly, real-time price updates on financial markets or live chats in support systems use WebSockets. In these systems, the backend infrastructure must be properly designed.
- Live Notification Systems: Sending real-time messages or alerts to the user.
- Stock Updates: Instantly warning users with items in their cart when product stock runs out.
- Multi-User Editing: Multiple people working simultaneously on the same document or dashboard.
Comparison of Polling and WebSockets
The differences between the two methods can be clearly seen in terms of performance criteria:
- Latency: In the polling method, latency depends on the query interval (for example, 5 seconds). In WebSocket technology, latency is at the millisecond level.
- Bandwidth: Polling carries repetitive HTTP headers with every request. Once a WebSocket connection is established, it operates with minimal header overhead.
- Server Load: The polling method consumes CPU and RAM with thousands of requests that return empty. WebSockets only consume processor resources during data transfer while the connection remains open.
Considerations When Building Real-Time Data Architecture
There are some technical challenges you may encounter when integrating WebSocket architecture into your project:
- Connection Drops (Reconnection): WebSockets can disconnect on mobile devices or unstable internet connections. Automatic reconnection logic must be implemented on the client side.
- Horizontal Scaling: When the number of servers increases, a user connected to one WebSocket server may not be aware of an event on another server. Message queues like Redis Pub/Sub should be added to solve this issue.
- Security (WSS): HTTPS should be used instead of HTTP, and WSS instead of WS to encrypt data traffic. Authorization (Token / Session verification) must be performed during the initial handshake.
Operating in over 500 projects and more than 800 game servers since 2019, F-Development offers technical solutions for building scalable real-time data infrastructures.
Conclusion
WebSockets are an indispensable standard for modern web applications and game servers that require real-time data streaming. By eliminating unnecessary query overhead, it lowers server costs while delivering an instant experience to users.
To build a real-time data infrastructure and WebSocket integration for your projects, you can contact the F-Development team via our contact page.