Postman, a free Chrome browser app plugin is a great tool for working with REST web services APIs.  We are often creating REST APIs for clients, or integrating a 3rd party REST APIs into clients’ web applications or mobile apps and often need to troubleshoot our code or demonstrate an API that we’ve built to a client.  The Postman REST client is a tool that enables users to post and get data as well as perform a wealth of other HTTP commands from your Chrome borwser.  It will enable you to test your APIs by posting in paramters and getting results back in JSON or XML format.

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We highly recommend giving this free tool a try as it can save you time and frustration while developing and working with REST APIs.