Integrating two or more systems are very important for any enterprise as they use most effective individual tools/software to run their business efficiently.
Majority of digital systems have connected via File Transfer Protocol(FTP) integration. In this one system exports data in file format in a shared and protected location.
Middleware is a software that links two or more separate applications or systems. Data flow can be real time or near real time depending on the scenario.
RESTful Application Programming Interface (REST API) designed to use existing Protocols. No need to install any additional software to work on REST API.