API Contract Design and Sketching

APIs are the backbone of modern applications, but poor planning leads to costly rework. Defining your API contract upfront ensures consistency and efficiency. This course teaches you the fundamental principles of API contract design. You will learn how to sketch out endpoints, define data structures (payloads), and use mocking techniques to validate your design with stakeholders and testers before committing to implementation. What you'll learn: * Understand the core principles of RESTful API design, including resource modeling and standard HTTP methods. * Define precise API contracts using structured formats like JSON payloads for requests and responses. * Apply foundational concepts of API specification tools, focusing on endpoint documentation and data types. * Practice effective API sketching and mocking to simulate interactions and gather early feedback on proposed designs. * Configure basic conventions for handling common scenarios like authentication and error status codes (e.g., 401, 404, 500). We begin by establishing essential API terminology and conventions. We then move into practical exercises focused on structuring resources, defining data models, and creating functional mock tests for immediate design validation. This course is designed for absolute beginners—developers, product managers, or testers—who need to plan and communicate API requirements effectively. No prior experience with API implementation or design tools is required. Start planning your robust APIs today.