I have worked with L7 for a client which offers something similar. The whole thing was painful in a way. The SOAP to JSON conversion is easy for baby SOAP or J

I have worked with L7 for a client which offers something similar. The whole thing was painful in a way. The SOAP to JSON conversion is easy for baby SOAP or JSON requests using transformation. For larger ones they turned out to be complex. Once you start with client started with using the "SOAP" converted to JSON apis, there were new feature kind of requests. Now the problem is somebody needs to be dig into that old code mess of SOAP web services. Or write new services and split requests between old and new services. There will be performance issues because of the no of transformation doing on top of the request. Ultimately has to write plugins on top write performant transformation in a single piece. Personally SOAP to JSON conversion will not be as simple as move to AWS, although I will assume Amazon will do far far better job on this than others.