Introduction
Publisher Summary
This chapter defines an Application Programming Interface (API), which provides an abstraction for a problem and specifies how clients should interact with software components that implement a solution to that problem. API development is ubiquitous in modern software development. Its purpose is to provide a logical interface to the functionality of a component while also hiding any implementation details. It can be as small as a single function or involve hundreds of classes, methods, free functions, data types, enumerations, and constants. Its implementation can be proprietary or open source. The important underlying concept is that an API is a well-defined interface that provides a specific service to ...
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