How WebSocket Works
1. WebSocket Handshake:
The client sends an HTTP request to the server, requesting to upgrade the connection to WebSocket. If the server supports WebSocket, it responds with an HTTP 101 status code (“Switching Protocols”), indicating a successful upgrade to WebSocket.
2. WebSocket Connection Establishment:
Once the handshake is complete, a WebSocket connection is established over a single TCP connection. Both the client and server can now send messages to each other directly without the overhead of HTTP headers.
3. Data Exchange:
The client and server exchange messages asynchronously over the WebSocket connection. Messages can be sent in either text or binary format.
How to Test WebSocket APIs With Postman?
WebSocket is a communication protocol that provides full-duplex communication channels over a single, long-lived connection between clients and servers. Unlike HTTP, which is a request-response protocol, WebSocket allows both the client and server to send messages to each other independently at any time, enabling real-time data transfer.
Table of Content
- Key Concepts of WebSocket
- How WebSocket Works
- Features of WebSocket
- Approach
- Testing WebSocket APIs with Postman