Definition – What does API mean?
Application Programming Interface (API) is a set of functions, protocols, commands, and objects that application developers can use to create programs or interact with the external system. It provides programmers with standard commands for performing several kinds of common operations, so they do not have to write the syntax from scratch. The APIs are available for both platforms such as desktop and mobile OS.
Glossary Web explains API
The Windows API provides developers with user-interface controls and elements including windows, scroll bars, and dialog boxes, etc. It also offers commands for retrieving the file system and performing file operations. Additionally, the Windows API contains networking commands that can be used to send and receive data over the network. Mobile APIs provide commands for detecting touchscreen input, such as tapping, swiping, and rotating. It also includes common user-interface elements that provide navigation buttons at the bottom of the screen.
Most of the operating system APIs are usually integrated into the computer software development kit for the corresponding program. For example, Apple’s Xcode IDE that enables developers to drag and drop elements into the application’s interface. It also offers a list of functions that includes syntax highlighting for known elements and commands. While the OS APIs have a robust set of features and the other types of APIs are much more basic. The website API may be as simple as a set of XML elements with a few commands for saving the information.