Request Response Cycle

Introduction

The request response cycle is the fundamental process through which a client, typically a web browser communicates with a server to request and receive resources. The key component of request response cycle include client, server and protocol.

Key Components

  • Client
  • Server
  • Protocol

Steps in the Request-Response Cycle:

  1. Cient Sends a Request
  2. DNS Resolution
  3. Establishing a Connection
  4. Server Receives the Request
  5. Server Sends a Response
  6. Client Receives the response

Note Points:

  • HTTP Request Components

  • HTTP Response Components

  • HTTP Methods: GET, POST, PUT, PATCH, DELETE

  • Status Codes (reference: https://developer.mozilla.org/en-US/docs/Web/HTTP/Reference/Status)

  • Headers

    • Request Headers
    • Response Headers

  • Practical Use Cases and Examples

    • Accessing a Webpage
    • Submitting a Form
    • API Calls

  • Best Practices

    • Optimize Requests
    • Handle Errors Gradually
    • Secure Comunmications