Welcome to the advanced HTTP protocol documentation section. This page provides an in-depth look at various aspects of the HTTP protocol, including request and response headers, status codes, and more.
Overview
The HTTP protocol is the foundation of data communication on the web. It defines how messages are formatted and transmitted, and how web servers and browsers should respond to requests.
Key Components
- HTTP Methods: Actions that can be performed on resources, such as GET, POST, PUT, DELETE, etc.
- Headers: Metadata about the request or response, such as content type, cookies, and authentication credentials.
- Status Codes: Responses from the server indicating success, client errors, server errors, etc.
Request Headers
Request headers provide information about the client's request, such as the type of data being sent, the client's language preferences, and authentication credentials.
- Content-Type: Specifies the media type of the data being sent.
- Accept: Specifies the languages and content types that the client accepts.
- Authorization: Contains credentials for authentication.
Response Headers
Response headers provide information about the server's response, such as the status of the request, the content type of the response, and caching information.
- Status Code: Indicates the success or failure of the request.
- Content-Type: Specifies the media type of the response.
- Cache-Control: Controls caching behavior.
Status Codes
HTTP status codes are three-digit numbers that indicate the result of the HTTP request.
- 2xx Success: The request was successful.
- 4xx Client Errors: The request could not be completed due to client-side errors.
- 5xx Server Errors: The request could not be completed due to server-side errors.
Example
Here's an example of a successful response with a 200 status code:
HTTP/1.1 200 OK
Content-Type: text/html
Cache-Control: no-cache
Additional Resources
For more detailed information, please refer to the following resources: