What is an API and what is it used for ?

What is an API ?

Application Programming Interface (API) is a set of methods and tools for building software applications. An API specifies how software components should interact. Additionally, APIs are used when programming graphical user interface (GUI) components. A good API makes it easier to develop a program by providing all the building blocks. A programmer then puts the blocks together.

What is it used for ?

  1. APIs are used when programming graphical user interface (GUI) components
  2. An API can specify the interface between an application and the operating system.
  3. Remote APIs allow developers to manipulate remote resources through protocols, specific standards for communication that allow different technologies to work together, regardless of language or platform.
  4. APIs are the defined interfaces through which interactions happen between an enterprise and applications that use its assets.

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