REST (Representational state transfer) has quickly become the de facto standard for communication between services and apps. Before it, came SOAP and XMLRPC, but the two buzzwords you’ll hear over and over these days are REST and JSON. When it comes to FileMaker, you’ve always been able to do super basic REST with the Insert from URL script step. Later down the road, FileMaker added in support for the POST method of service interaction with the httpspost:// url scheme.
URL https://www.filemakermagazine.com/videos/filemaker-rest-using-baseelements-plugin