Sample JSON Schema

sample-json-schema.json

{
  "schema": {
    "type": "object",
    "properties": {
      "name": {
        "type": "string",
        "pattern": "^\\w+\\s\\w+$"
      },
      "username": {
        "type": "string",
        "minLength": 5
      },
      "age": {
        "type": "integer",
        "default": 20,
        "minimum": 18,
        "maximum": 30
      }
    },
    "required": [
      "username"
    ],
    "additionalProperties": false
  }
}