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Uses And Functions Of API

Basically, API or Application Program Interface is 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. 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. To give you an example, Windows is using various API sets that are then used by the system applications and hardware and when copying and pasting text from app to the other, it's basically the API that does the work.

Just a GUI makes it a lot easier for people to make use of programs. Application programming interfaces make it simpler for the developers to use some technologies to build applications. By way of exposing actions or objects that the developer needs and abstracting the underlying implementation, API helps to reduce the cognitive load on the part of the programmer.
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While the graphic interface for email client may provide the user with a button that is performing all steps for highlighting and fetching new emails, API for file input and output may give developers a function that can copy a file from one location to a different one without requiring the developer to understand the file system operation that occurs behind the scenes.
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As what said earlier, APIs have different uses and purposes so it is not really 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 regards to Google Maps for example, the APIs make it possible for developers to embed Google Maps on the website by making use of 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. For this reason, the API's design is meant to deliver 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.