jsom-schema.json

{
    "$ref": "#/definitions/HTMLElement",
    "$schema": "http://json-schema.org/draft-07/schema#",
    "definitions": {
        "Attribute": {
            "properties": {
                "name": {
                    "type": "string"
                },
                "value": {
                    "type": "string"
                }
            },
            "required": [
                "name",
                "value"
            ],
            "type": "object"
        },
        "HTMLElement": {
            "properties": {
                "attributes": {
                    "items": {
                        "$ref": "#/definitions/Attribute"
                    },
                    "type": "array"
                },
                "children": {
                    "anyOf": [
                        {
                            "items": {
                                "$ref": "#/definitions/HTMLElement"
                            },
                            "type": "array"
                        },
                        {
                            "type": "string"
                        }
                    ]
                },
                "name": {
                    "type": "string"
                },
                "needClosing": {
                    "type": "boolean"
                }
            },
            "required": [
                "name"
            ],
            "type": "object"
        }
    }
}