What is an API and how does it work?

Focus on clearly defining what an API (Application Programming Interface) is, emphasizing its role as a set of rules and protocols that allow different software applications to communicate with each other. Explain the different types of APIs, such as RESTful and SOAP, and highlight key concepts like endpoints, requests, responses, and data formats (like JSON or XML). Discuss how APIs facilitate integration and data exchange between systems, and consider providing a real-world example to illustrate your points. Be prepared to touch on common use cases and the importance of APIs in modern software development.