Everything About API You Should Know
Basically, API or Application Program Interface is 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.
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. Application programming interfaces make life simpler for developers to use some technologies to build applications. 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 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 truth is that, the usability of the app is directly affected by the way the API is designed. Therefore, the design of the API tries to provide only the tools that a user expects from it. The design of the programming interfaces also represent a vital part of software architecture, which is the organization of complex piece of software.