Curl Cheatsheet

HTTP methods define the action to be performed on a resource. curl supports all standard HTTP methods, allowing you to interact with web servers and APIs in different ways.

Headers and data are essential components when making HTTP requests with curl. Headers provide metadata about the request or response, while data represents the payload being sent to the server. Curl offers various ways to customize both aspects for different API interactions.

Authentication in curl allows you to access protected resources by providing credentials in various formats. From basic username/password authentication to more complex OAuth flows, curl supports multiple authentication methods for interacting with secure APIs and services.

Cookies in curl enable storing and managing HTTP cookies for session persistence across requests. They're essential for authenticated sessions, personalized content, and maintaining state in stateless HTTP communications.

SSL/TLS options in curl allow you to configure secure connections, manage certificates, control verification behavior, and customize security settings for HTTPS requests.

Curl supports various proxy configurations for routing requests through intermediary servers. This is useful for accessing resources behind firewalls, enhancing privacy, or complying with network restrictions.

Curl is a powerful tool for transferring files to and from servers using various protocols. It supports uploading, downloading, resuming interrupted transfers, and working with FTP/SFTP servers with detailed progress tracking.

cURL supports advanced HTTP features that enhance performance, security, and efficiency. These include newer HTTP protocol versions, compression, connection management, and bandwidth control options.

Curl provides powerful debugging and troubleshooting options to help diagnose HTTP requests, network issues, and performance bottlenecks. These features are essential for developers when API calls fail or behave unexpectedly.

Curl is a powerful tool for scripting HTTP requests in shell environments. It can be used to automate tasks, process responses, handle errors, and integrate with other command-line tools, making it ideal for both simple and complex automation workflows.