syndu | Oct. 17, 2023, 3:28 p.m.
HTTP, or Hypertext Transfer Protocol, and HTTPS, or Hypertext Transfer Protocol Secure, are protocols used for transmitting hypertext requests from a client (usually a web browser) to a server. These protocols are fundamental to data exchange on the web.
HTTP works as a request-response protocol between a client and server. A client, such as a web browser, sends an HTTP request to the server. The server, which stores website content, responds with the requested information. HTTP is stateless, meaning that the server does not keep any data (state) between two requests.
On the other hand, HTTPS is the secure version of HTTP. It uses SSL/TLS protocol to encrypt the data that is exchanged between the client and the server. This ensures that the data cannot be tampered with or eavesdropped on, providing a secure environment for sensitive data exchange, such as credit card information or login credentials.
In the context of web sockets, HTTP/HTTPS plays a crucial role in the initial handshake between the client and the server. The client sends an HTTP request to the server, requesting to upgrade the connection to a WebSocket connection. If the server supports WebSockets, it agrees to the upgrade, and the connection is established. From this point on, the connection is full-duplex, meaning that both the client and the server can send data to each other simultaneously. This is different from a standard HTTP/HTTPS connection, which is half-duplex and can only handle one request at a time.
In conclusion, understanding HTTP/HTTPS is crucial for understanding how web sockets work. These protocols are the foundation of data exchange on the web, and their secure versions provide a safe environment for sensitive data exchange.
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