API
An API (Application Programming Interface) is a set of rules and tools that allows different software applications to communicate and share data with each other.
How it works
It acts as a messenger, delivering a request from one program to another and then returning the response. This allows developers to easily integrate features from external services, like payment processing or maps, into their own applications without building them from scratch.
Examples
- 1.A weather app uses a weather service's API to fetch and display local forecasts.
- 2.A travel booking website uses airline and hotel APIs to gather real-time prices and availability.
- 3.A social media platform uses a login API (like 'Sign in with Google') to let users access their accounts securely.