Application Programming Interface (API)

API stands for Application Programming Interface. It is a set of rules and protocols that allows different software applications to communicate with each other. APIs define the methods and data formats that applications can use to request and exchange information. They act as intermediaries, enabling the integration of different software systems, services, or platforms.

What Are API Functionalities? 

APIs define the rules for how software components should interact. This includes the format of requests and responses, the authentication process, and the conventions for data exchange.

APIs facilitate interoperability between different systems and applications. By adhering to a common set of standards, software components can work together seamlessly, even if different organisations develop them. 

APIs expose certain functionalities or data from a software application, service, or platform, making it accessible to other developers. This can include accessing databases, retrieving information, or performing specific actions.

Many APIs operate over the web and are commonly referred to as Web APIs. These APIs use standard web protocols such as HTTP (Hypertext Transfer Protocol) and are often based on REST (Representational State Transfer) or other architectural styles.

APIs enable developers to reuse existing code and services, saving time and resources. Instead of building every feature from scratch, developers can leverage APIs to integrate pre-built functionalities into their applications.

APIs often include mechanisms for authentication and authorisation to ensure that only authorised users or applications can access specific functionalities. This helps in maintaining the security of the systems involved.