Because there are a thousand ways to describe the same thing in JSON. This: city = { "id": 3, "name": "Foo", "lat": 3.555,

Because there are a thousand ways to describe the same thing in JSON. This: city = { "id": 3, "name": "Foo", "lat": 3.555, "long": 4.11, } Is the same as: city = { "id": "3", "name": "Foo", "coordinates": [3.555, 4.11] } But you want to normalize that. Something like Cuelang will: - Define the schema that will let you know what you should put inside. - Allow you to inflate that schema into a full file, providing only the values. - Will generate always a correct file, with no typo, or format error. - Will check that the data is correct and tell you if there are any errors. - Is note theoretically tied to a particular run time or stack.