we are trying to validate the Response from the Postman against DB values from Postgre DB. we are looking for open source middle ware which can be used for this. I have browsed through here and am not able to find anything conclusive. Any help would be appreciated.
I did a while back a tutorial on how to do this:
Maybe this helps.
I think their approach to open source might have changed in the meanwhile, but originally this was an open source product. https://www.dreamfactory.com/downloads/