What is an API (Application Programming Interface)?
Set of protocols for building and integrating application software, allowing different systems to communicate. Essential for modern software development. Used extensively in SaaS products. Companies provide APIs to enable integrations with their platforms.
Good API design includes clear documentation, consistent endpoints, and secure authentication. Focus on scalability, performance, and developer experience for successful integration.
Secure APIs through authentication protocols, rate limiting, and encryption. Implement access controls, monitoring systems, and security best practices.
API best practices include versioning, error handling, and comprehensive documentation. Focus on reliability, performance, and developer usability.
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