Public APIs
Public APIs (Application Programming Interfaces) are openly accessible interfaces that allow developers to interact with external services, data, or functionality over the internet. They enable applications to request and exchange information, such as weather data, social media posts, or payment processing, without building those capabilities from scratch. This concept is fundamental to modern web and mobile development, facilitating integration and interoperability between different systems.
Developers should learn and use public APIs to efficiently extend their applications with external features, such as integrating maps, payment gateways, or AI services, saving development time and resources. This is crucial for building scalable, feature-rich applications that leverage third-party data or services, common in e-commerce, social media, and IoT projects. Understanding APIs also enhances skills in RESTful design, authentication, and data handling, which are essential for full-stack and backend roles.