Everything About API You Should Know
Application Program Interface or known simply as API is basically a set of protocols, routines as well as tools needed to build software applications. In reality, the API is specifying how software components will interact to each and also, it is being used when programming components for GUIs or Graphical User Interface. A good API actually makes it a lot easier to create a program by providing all building blocks which is then put together by the programmer.
There are different types of APIs and these are widely used nowadays 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.
A GUI makes it easier for people to use programs. Application programming interfaces make it simpler for the developers to use some technologies to build applications. By exposing actions or objects that the developer needs and abstracting the underlying implementation, the API helps in reducing cognitive load on the part of the programmer.
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While graphic interfaces for email client might provide users with button that does all steps to highlight and to fetch new emails, API for input and output can give developers the function to copy a file from a different location without the developer having to understand the file system operation that occurs behind the scenes.
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The way the API is designed has a huge effect on its usability. Therefore, the design of the API tries to provide only the tools that a user expects from it. As a matter of fact, the design of programming interface is a vital part of any software architecture which is basically the organization of complex piece of software.