{ "country": { "name": "country", "data-type": "string", "source": { "db": { "query": "SELECT country FROM DEVICE_PROFILE WHERE profile_name = :profile_name", "input-key-mapping": { "profile_name": "profile_name" }, "output-key-mapping": { "country": "country" } } } }, "profile_name": { "name": "profile_name", "data-type": "string", "source": { "input": { } } } }