JSON Schema - require all properties

Question

The required field in JSON Schema

JSON Schema features the properties, required and additionalProperties fields. For example,

{     "type": "object",     "properties": {         "elephant": {"type": "string"},         "giraffe": {"type": "string"},         "polarBear": {"type": "string"}     },     "required": [         "elephant",         "giraffe",         "polarBear"     ],     "additionalProperties": false } 

Will validate JSON objects like:

{     "elephant": "Johnny",     "giraffe": "Jimmy",     "polarBear": "George" } 

But will fail if the list of properties is not exactly elephant, giraffe, polarBear.

The problem

I often copy-paste the list of properties to the list of required, and suffer from annoying bugs when the lists don't match due to typos and other silly errors.

Is there a shorter way to denote that all properties are required, without explicitly naming them?

Answer 1

You can just use the "minProperties" property instead of explicity naming all the fields.

{     "type": "object",     "properties": {         "elephant": {"type": "string"},         "giraffe": {"type": "string"},         "polarBear": {"type": "string"}     },     "additionalProperties": false,     "minProperties": 3 }