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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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APIs have different uses and purposes as what said earlier, which is why it is not so surprising if there are APIs on frameworks and libraries, operating systems, web and in fact, there are API for SEO as well. Some of the popular uses of APIs are in Google Maps and YouTube whether you believe it or not. In Google Maps for instance, APIs make it possible for the developers to embed Google Maps on websites by using Flash interface or JavaScript while in YouTube, it allows videos and functionality of the site to be integrated to apps or websites. This is basically one of the reason why it is possible for us to play and watch live stream YouTube videos even if we are not directly on the site because YouTube has live streaming API, YouTube Player API and many more.

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.

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