24. Application Programming Interfaces (APIs)

Short summary

Comprehensive guide to API fundamentals: what APIs are, REST architecture, HTTP methods (GET, POST, PUT, PATCH, DELETE), JSON format, and how to make requests with Axios. Covers API authentication approaches including Basic Auth, API Keys, Token-based, and OAuth. Structured as beginner-friendly educational material with code examples.

• •REST APIs use HTTP methods: GET (read), POST (create), PUT (replace), PATCH (update), DELETE (remove)
• •Authentication methods covered: Basic Auth, API Keys, Token-based, OAuth
• •Axios is recommended as a popular HTTP client for JavaScript/Node.js API requests

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