quiz_unit_schema.json

{
  "id": "http://json-schema.org/draft-04/schema#",
  "$schema": "http://json-schema.org/draft-04/schema#",
  "description": "Quiz schema",
  "type": "object",
  "properties": {
    "items": {
      "type": "object",
      "patternProperties": {
        "[A-Za-z0-9_-]" : {
          "oneOf" : [
            {
              "type": "object",
              "required": ["question", "correct_answers", "answers"],
              "properties": {
                "question": {
                  "type": "string"
                },
                "correct_answers": {
                  "type": "array",
                  "minItems": 1,
                  "items": {
                    "type": "string"
                  },
                  "uniqueItems": true
                },
                "answers": {
                  "type": "array",
                  "minItems": 1,
                  "items": {
                    "type": "string"
                  },
                  "uniqueItems": true
                }
              }
            },
            {
              "type": "object",
              "required": ["question", "correct_answers", "text"],
              "properties": {
                "question": {
                  "type": "string"
                },
                "text": {
                  "type": "string",
                  "pattern": "(.*{[\\w_]+})+"
                },
                "correct_answers": {
                  "type": "object",
                  "patternProperties": {
                    "[A-Za-z0-9_-]" : {
                      "type": "string"
                    }
                  }
                }
              }
            }
          ]
        }
      }
    }
  }
}