I'm newbie to Drupal and I need it specifically for feeding iPhone apps with JSON data.
I know how to access dbase data via a module using node_load and how to generate the JSON.
Now I simply want to pass a parameter in the URL, in order to get only the info that I want (ex: http://...mymodule?param=X)
I'm completely lost about how to do it. I have checked various drupal resources without getting anything clear. In most cases the info is not referering to Services.
Can someone please point out some ideas, resources, documents....
thanks in advance,