}
        },
        "components": {
            "schemas": {
                "HTTPValidationError": {
                    "title": "HTTPValidationError",
                    "type": "object",
                    "properties": {
                        "detail": {
                            "title": "Detail",
                            "type": "array",

        },
        "components": {
            "schemas": {
                "Body_read_items_items__item_id__put": {
                    "title": "Body_read_items_items__item_id__put",
                    "type": "object",
                    "properties": {
                        "start_datetime": {
                            "title": "Start Datetime",
                            "type": "string",

// Copyright (c) 2015-2021 MinIO, Inc.
//
// This file is part of MinIO Object Storage stack
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful

                    "type": "object",
                    "required": ["username", "password"],
                    "title": "FormData",
                },
                "ValidationError": {
                    "title": "ValidationError",
                    "required": ["loc", "msg", "type"],
                    "type": "object",
                    "properties": {

                    "type": "object",
                    "required": ["username", "password"],
                    "title": "FormData",
                },
                "ValidationError": {
                    "title": "ValidationError",
                    "required": ["loc", "msg", "type"],
                    "type": "object",
                    "properties": {

        if (defaultRule) {
            return true;
        }

        final Map<String, Object> map = new HashMap<>();
        BeanUtil.copyBeanToMap(responseData, map, CopyOptions::excludeWhitespace);
        for (final Map.Entry<String, Pattern> entry : regexMap.entrySet()) {
            String value = "";
            final Object obj = map.get(entry.getKey());
            if (obj != null) {
                value = obj.toString();

    /**
     * @return
     */
    static Map<String, String> toMap ( Properties props ) {
        Map<String, String> res = new HashMap<>();
        for ( Object object : props.keySet() ) {
            res.put((String) object, props.getProperty((String) object).trim());
        }
        return res;
    }

Dit betekent ook dat je in veel gevallen het object dat je van een request krijgt **direct naar je database** kunt sturen, omdat alles automatisch wordt gevalideerd.

Hetzelfde geldt ook andersom, in veel gevallen kun je dus het object dat je krijgt van de database **direct doorgeven aan de client**.

from fastapi.testclient import TestClient

from docs_src.response_headers.tutorial002 import app

client = TestClient(app)


def test_path_operation():
    response = client.get("/headers-and-object/")
    assert response.status_code == 200, response.text
    assert response.json() == {"message": "Hello World"}

    //                                                                              ======
    @Override
    public Map<String, Object> toSource() {
        Map<String, Object> sourceMap = new HashMap<>();
        if (available != null) {
            addFieldToSource(sourceMap, "available", available);
        }
        if (boost != null) {