Uses And Functions Of API
Application Program Interface or known simply as API is basically a set of protocols, routines as well as tools needed to build software applications. API is specifying how the software components will interact to each and in addition, it is also used when programming components for GUIs or Graphical User Interface. Actually, a good API makes it simpler to make programs by providing all the building blocks which is put together by the programmer.
As a matter of fact, there are various kinds of APIs used today for applications, websites or even operating systems. As an example, Windows makes use of different API sets that are being used by system applications as well as hardware and when copying and pasting text from one app to the other, basically it is the API that does the work.
The use of programs has become easier through GUI implementations. Developers can easily use some technologies to build applications through application programming interfaces. The API helps to reduce the cognitive load on the part of the programmer by exposing actions or objects that the developer needs and abstracting the underlying implementation.
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While graphic interface for email client might provide users with a button that can perform all steps to highlight and fetch new emails, API for file input and output gives developers the function to copy a file from one place to another without having to understand the file system operation that occurs behind the scenes.
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The truth is that, the usability of the app is directly affected by the way the API is designed. With this being said, the design of API is trying to provide only the tools that a user expects from it. The design for programming interfaces is representing a crucial role in software architecture or the organization of complex piece of software.