A GraphQL introspection JSON Schema

introspection.schema.json

{
    "$id": "graphql/introspection",
    "description": "A JSON Schema for checking GraphQL introspection",
    "type": "object",
    "properties": {
        "data": {
            "type": "object",
            "properties": {
                "__schema": {
                    "type": "object",
                    "properties": {
                        "queryType": {
                            "$ref": "#/definitions/schemaField"
                        },
                        "mutationType": {
                            "$ref": "#/definitions/schemaField"
                        },
                        "subscriptionType": {
                            "$ref": "#/definitions/schemaField"
                        },
                        "types": {
                            "type": "array",
                            "items": {
                                "$ref": "#/definitions/type"
                            }
                        },
                        "directives": {
                            "type": "array",
                            "items": {
                                "$ref": "#/definitions/directive"
                            }
                        }
                    }
                }
            },
            "required": [
                "__schema"
            ]
        },
        "errors": {
            "type": "array"
        },
        "extensions": {
            "type": "object"
        }
    },
    "additionalProperties": false,
    "required": [
        "data"
    ],
    "definitions": {
        "schemaField": {
            "anyOf": [
                {
                    "type": "object",
                    "properties": {
                        "name": {
                            "type": "string"
                        }
                    },
                    "additionalProperties": false
                },
                {
                    "type": "null"
                }
            ]
        },
        "type": {
            "type": "object",
            "properties": {
                "kind": {
                    "$ref": "#/definitions/kind"
                },
                "name": {
                    "type": "string"
                },
                "description": {
                    "$ref": "#/definitions/description"
                },
                "fields": {
                    "anyOf": [
                        {
                            "type": "array",
                            "items": {
                                "$ref": "#/definitions/field"
                            }
                        },
                        {
                            "type": "null"
                        }
                    ]
                },
                "inputFields": {
                    "anyOf": [
                        {
                            "type": "array",
                            "items": {
                                "$ref": "#/definitions/inputField"
                            }
                        },
                        {
                            "type": "null"
                        }
                    ]
                },
                "interfaces": {
                    "anyOf": [
                        {
                            "type": "array",
                            "items": {
                                "$ref": "#/definitions/interface"
                            }
                        },
                        {
                            "type": "null"
                        }
                    ]
                },
                "enumValues": {
                    "anyOf": [
                        {
                            "type": "array",
                            "items": {
                                "$ref": "#/definitions/enumValue"
                            }
                        },
                        {
                            "type": "null"
                        }
                    ]
                },
                "possibleTypes": {
                    "anyOf": [
                        {
                            "type": "array",
                            "items": {
                                "$ref": "#/definitions/possibleType"
                            }
                        },
                        {
                            "type": "null"
                        }
                    ]
                }
            },
            "additionalProperties": false
        },
        "argument": {
            "type": "object",
            "properties": {
                "name": {
                    "type": "string"
                },
                "description": {
                    "$ref": "#/definitions/description"
                },
                "type": {
                    "$ref": "#/definitions/typeOf"
                },
                "defaultValue": {
                    "anyOf": [
                        {
                            "type": "string"
                        },
                        {
                            "type": "array"
                        },
                        {
                            "type": "object"
                        },
                        {
                            "type": "null"
                        },
                        {
                            "type": "number"
                        },
                        {
                            "type": "object"
                        }
                    ]
                }
            }
        },
        "field": {
            "type": "object",
            "properties": {
                "name": {
                    "type": "string"
                },
                "description": {
                    "$ref": "#/definitions/description"
                },
                "args": {
                    "type": "array",
                    "items": {
                        "$ref": "#/definitions/argument"
                    }
                },
                "type": {
                    "$ref": "#/definitions/typeOf"
                },
                "isDeprecated": {
                    "type": "boolean"
                },
                "deprecationReason": {
                    "anyOf": [
                        {
                            "type": "string"
                        },
                        {
                            "type": "null"
                        }
                    ]
                }
            }
        },
        "inputField": {
            "type": "object"
        },
        "interface": {
            "type": "object"
        },
        "enumValue": {
            "type": "object"
        },
        "possibleType": {
            "type": "object"
        },
        "kind": {
            "type": "string",
            "enum": [
                "SCALAR",
                "OBJECT",
                "INTERFACE",
                "UNION",
                "ENUM",
                "INPUT_OBJECT",
                "LIST",
                "NON_NULL"
            ]
        },
        "typeOf": {
            "anyOf": [
                {
                    "type": "object",
                    "properties": {
                        "kind": {
                            "$ref": "#/definitions/kind"
                        },
                        "name": {
                            "anyOf": [
                                {
                                    "type": "string"
                                },
                                {
                                    "type": "null"
                                }
                            ]
                        },
                        "ofType": {
                            "$ref": "#/definitions/typeOf"
                        }
                    }
                },
                {
                    "type": "null"
                }
            ]
        },
        "description": {
            "anyOf": [
                {
                    "type": "string"
                },
                {
                    "type": "null"
                }
            ]
        },
        "location": {
            "type": "string",
            "enum": [
                "QUERY",
                "MUTATION",
                "SUBSCRIPTION",
                "FIELD",
                "FRAGMENT_DEFINITION",
                "FRAGMENT_SPREAD",
                "INLINE_FRAGMENT",
                "SCHEMA",
                "SCALAR",
                "OBJECT",
                "FIELD_DEFINITION",
                "ARGUMENT_DEFINITION",
                "INTERFACE",
                "UNION",
                "ENUM",
                "ENUM_VALUE",
                "INPUT_OBJECT",
                "INPUT_FIELD_DEFINITION"
            ]
        },
        "directive": {
            "type": "object",
            "properties": {
                "name": {
                    "type": "string"
                },
                "description": {
                    "$ref": "#/definitions/description"
                },
                "locations": {
                    "type": "array",
                    "items": {
                        "$ref": "#/definitions/location"
                    }
                },
                "args": {
                    "type": "array",
                    "items": {
                        "$ref": "#/definitions/argument"
                    }
                },
                "isRepeatable": {
                    "type": "boolean"
                }
            },
            "additionalProperties": false
        }
    }
}