What is API?

Application or API programming interface is a set of data structures, protocols, routines and tools to access the web software application. It provides all building blocks for the development of programs with ease. The application programming interface may be a language dependent or a language independent. API depending on language is only available in a specific programming language. The Independent API language is not tied to a specific language, system or process. They can be called several programming languages.

API runs quietly in the background. They are completely invisible to software users and web surfers. They are the primary task to provide a channel for cooperation applications to make sure the user gets the required functionality and information.

For example, when a user buys an online product and enters their credit card information, the product uses API to send credit card information to another application. Application verifies whether the information is correct or not. Then entitles the product web page to youGiving the purchased product after information verification and payment confirmation. The site has many applications that work with API. Interfaces for programming applications

ensure that software developers do not have to start building applications from scratch. There is no need to create one application that performs each function. The application can transfer some responsibilities to a remote application. The API is therefore similar to SAAS (software as a service).

The software company publishes its API programmers in the form of a software development set (SDK). SDK includes programming tools, application programming interfaces and release documents to make the programmer's work easier.

The company is adhered to some principles of publishing before the release of Apis Producers, including:

• Key information about the interface of application programming cannot be released outside the company. Companies must make API available to the public. For exampleAd Microsoft® causes DirectX® developers and the entire API. To access these components, SDK must download. Microsoft® has also made the Windows® API developers to create applications in accordance with the operating environment. Apple® also released its API Carbon® and Cocoa® API for developers to create useful iPhone applications.
• The company protects information from the general public. For example, the official PlayStation® 2 API was released by Sony® only for PlayStation® licenses. So Sony® enjoyed the overall quality control of its games and enjoyed potential license revenues.