REST APIs: The Basics Explained
REST APIs explained in simple terms. Understand endpoints, HTTP methods, status codes, and how web services communicate.
ExplainThisCode Team6 min
api
rest
fundamentals
1 article tagged with “rest”
REST is the most common architectural style for web APIs. Learn resource naming, HTTP methods, status codes, pagination, and how to design endpoints that clients love to consume.
REST remains the dominant style for public APIs because its conventions are simple, well-understood, and supported by every HTTP client. A consistent RESTful interface lowers the learning curve for new consumers and makes documentation almost self-explanatory. That simplicity is what keeps REST relevant even as newer approaches emerge.
These articles cover naming, status codes, pagination, and error formatting so your endpoints feel intuitive from the first request. You will also learn how to version your API without breaking existing clients and how to design resources that map cleanly to your domain. The result is an API that developers enjoy consuming.
Start by building a simple CRUD API for a resource like "tasks" or "users." Use GET to list, POST to create, PUT to update, and DELETE to remove. Our articles show you how to choose clean URLs, return the right status codes, and format errors consistently. Once your basic API works, add pagination and filtering. Paste your route handlers into ExplainThisCode to get feedback on RESTful design, naming conventions, and error handling in each endpoint.
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