The number of online based companies and companies providing services through websites is currently innumerable. Big companies like Google, Facebook, Twitter have arranged for their services to be displayed on third party sites to keep them at bay.If you have visited many websites, you must notice that the articles are on that site but there are direct Facebook comments added, that is, Facebook comments can be made on the articles of the website and the comments are also published on Facebook. Again, you can see the latest posts on Twitter from the website, all of which are made possible by the API.
You can see in Twitter that you can login using Facebook or Google account, how does it work? Kora is directly connected to Facebook, Google's user database, when a user logs in through Facebook, Facebook provides Kora with the details of that user and logs in to Kora.
In this, all the work is done with one account of yours. The main purpose of API is to improve the quality of service by bringing all websites and software together.
API usecase in business :
The API is used not only for individual applications or websites, but also for the Internet browser of your choice. Your Internet browser helps connect your computer or system to websites and various web applications. Suppose you want to use voice or video chat on Facebook or use the web version of Skype, in which case you need to access these web applications from your system, mic, speaker, webcam, etc.
API usecase in Government system :
In addition to software or websites or browsers, the government itself uses APIs to control various services from one place. Databases of different forces of the country may be tied to the same source where all the information can be found by searching for information from one need to another. CCTV cameras of all the cities are also connected to control from one place.The biggest advantage of API is that there is no need to re-program to add new features to any application. Rather the benefits can be added from one application to another. Suppose an application can only have text chat but it is possible to get all the features including voice chat, video chat by connecting it with the API of another application. You can create your own Facebook app or messenger using Facebook API even if you want.
At the toturial conclusion :
So what we mean by API is basically a tool where one application can connect to another application through programming and command usage and share their own features with each other. Computer software, applications, websites, web applications, servers, databases, etc. can be connected through APIA. This connection further enhances the service and helps to control everything and provide all the features from one place.
In a word, nothing is possible without API at the present time, every application or website or any place must have API support, surely it is not possible to develop anything from scratch!
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