APIs (Application Programming Interfaces) are fundamental to modern software development, but navigating their terminology can be challenging. This article breaks down essential API terms to help you better understand how APIs work and how to use them effectively.
Key concepts
- Endpoint: An endpoint is a specific URL within an API where requests are sent. Each endpoint corresponds to a particular function or resource, such as retrieving user data or submitting a form.
- Request: A request is a call made to an API endpoint to perform an action, such as fetching or sending data. Requests typically include a method (e.g., GET, POST) and may contain parameters or body data.
- Response: The response is the data returned by the API after processing a request. It includes a status code (indicating success or failure) and the requested data, usually in formats like JSON or XML.
- Status Code: Status codes are numerical codes included in the response that indicate the outcome of the request. Common codes include 200 (OK), 404 (Not Found), and 500 (Internal Server Error).
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