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API testing is a type of software testing that involves testing application programming interfaces (APIs) directly and as part of integration testing to determine if they meet expectations for functionality, reliability, performance, and security. [1]
A server that acts as an API front-end, receives API requests, enforces throttling and security policies, passes requests to the back-end service and then passes the response back to the requester. [2] A gateway often includes a transformation engine to orchestrate and modify the requests and responses on the fly. A gateway can also provide ...
Other Integration Patterns [3] are: collaboration integration, backbone integration, layer integration, client-server integration, distributed services integration and high-frequency integration. In big-bang testing, most of the developed modules are coupled together to form a complete software system or major part of the system and then used ...
An application programming interface (API) is a connection between computers or between computer programs. It is a type of software interface, offering a service to other pieces of software. [1] A document or standard that describes how to build such a connection or interface is called an API specification.
An example of a popular web API is the Astronomy Picture of the Day API operated by the American space agency NASA. It is a server-side API used to retrieve photographs of space or other images of interest to astronomers, and metadata about the images. According to the API documentation, [15] the API has one endpoint:
Version 4.0 was standardized at OASIS, [2] with a release in March 2014. [3] In April 2015 OASIS submitted OData v4 and OData JSON Format v4 to ISO/IEC JTC 1 for approval as an international standard. [4] In December 2016, ISO/IEC published OData 4.0 Core as ISO/IEC 20802-1:2016 [5] [6] and the OData JSON Format as ISO/IEC 20802-2:2016. [7]
Software architecture: Middleware. The term is most commonly used for software that enables communication and management of data in distributed applications.An IETF workshop in 2000 defined middleware as "those services found above the transport (i.e. over TCP/IP) layer set of services but below the application environment" (i.e. below application-level APIs).
System integration testing (SIT) involves the overall testing of a complete system of many subsystem components or elements. The system under test may be composed of electromechanical or computer hardware, or software , or hardware with embedded software , or hardware/software with human-in-the-loop testing.