API Design and HTTP Requests with curl

Every modern web application and service relies on APIs to communicate, but understanding how they work behind the scenes is essential for any aspiring developer. This text-based course guides you through the foundational concepts of API design and teaches you how to interact with them directly from your command line. You will transition from a beginner to a confident practitioner capable of reading API documentation, structuring HTTP requests, and analyzing server responses. By focusing on the industry-standard curl tool, you will gain a deep understanding of network communication without relying on heavy graphical interfaces. What you'll learn: - Understand fundamental API concepts, including HTTP methods, status codes, and headers - Design clean and predictable RESTful API endpoints using modern design principles - Construct curl commands to send GET, POST, PUT, and DELETE requests - Handle API authentication securely using API keys and modern Bearer tokens - Parse and validate JSON request and response payloads - Troubleshoot failed requests and debug common API error codes The course begins with essential terminology and the anatomy of an HTTP request. You will then progress through hands-on written tutorials that demonstrate how to construct curl commands, design structured endpoints, and handle secure authentication flows. This course is designed for beginners, aspiring developers, and system administrators who want to understand network requests from the ground up. No prior programming experience or command-line familiarity is required. Start reading today to master the core building blocks of modern web communication.