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Programming Concepts Intermediate

What is API Design?

The practice of designing application programming interfaces that are consistent, intuitive, and maintainable for developers to consume.

Good API design follows principles like consistency (uniform naming conventions, error formats), discoverability (logical resource naming, HATEOAS links), versioning (URL path, header, or query parameter strategies), proper HTTP method usage (GET for reads, POST for creates, PUT for updates, DELETE for removes), meaningful status codes, pagination for collections, filtering and sorting parameters, and comprehensive documentation. RESTful conventions, OpenAPI/Swagger specifications, and developer experience (DX) are central concerns. Well-designed APIs reduce integration time, minimize support burden, and enable ecosystem growth.

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A data structure that follows Last-In-First-Out (LIFO) ordering, where elements are added and removed from the same end (top).
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A software design pattern where components communicate by producing and consuming events rather than direct method calls.
Closure
A function that captures and retains access to variables from its enclosing scope, even after that scope has finished executing.
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The ability of a program to manage multiple tasks that can make progress during overlapping time periods.
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