Postman is an API platform for developers to design, build, test and iterate their APIs. It is an application used for API testing. It is an HTTP client that tests HTTP requests. It utilizes a graphical user interface, through which we obtain different types of responses that need to be subsequently validated.
Newman is a command-line Collection Runner for Postman. It enables you to run and test a Postman Collection directly from the command line. It’s built with extensibility in mind so that you can integrate it with your continuous integration servers and build systems.
Now you can run your Postman collections right from Docker Desktop. Assuming that you have the latest version of Docker Desktop installed, just restart your Docker Desktop to see this new Extension.