# CORS (Cross-Origin Resource Sharing) { #cors-cross-origin-resource-sharing }

/// note | Technical Details

You could also use `from starlette.middleware.cors import CORSMiddleware`.

**FastAPI** provides several middlewares in `fastapi.middleware` just as a convenience for you, the developer. But most of the available middlewares come directly from Starlette.

And as the `Response` can be used frequently to set headers and cookies, **FastAPI** also provides it at `fastapi.Response`.

///

## Custom Headers { #custom-headers }

Form kodlama türleri ve form alanları hakkında daha fazla bilgi edinmek istiyorsanız <a href="https://developer.mozilla.org/en-US/docs/Web/HTTP/Methods/POST" class="external-link" target="_blank"><abbr title="Mozilla Developer Network">MDN</abbr> web docs for <code>POST</code></a> sayfasını ziyaret edebilirsiniz.

///

/// warning | Uyarı

    * 对于来自客户端的一般错误，可以只使用 `400`
* `500` 及以上的状态码用于表示服务器端错误。几乎永远不会直接使用这些状态码。应用代码或服务器出现问题时，会自动返回这些状态代码

/// tip | 提示

状态码及适用场景的详情，请参阅 <a href="https://developer.mozilla.org/en-US/docs/Web/HTTP/Status" class="external-link" target="_blank"><abbr title="Mozilla Developer Network">MDN 的 HTTP 状态码</abbr>文档</a>。

///

## 状态码名称快捷方式

再看下之前的例子：

{* ../../docs_src/response_status_code/tutorial001.py hl[6] *}

# CORS (Обмін ресурсами між різними джерелами)

<a href="https://developer.mozilla.org/en-US/docs/Web/HTTP/CORS" class="external-link" target="_blank">CORS або "Обмін ресурсами між різними джерелами"</a> є ситуація, коли фронтенд, що працює в браузері, містить JavaScript-код, який взаємодіє з бекендом, розташованим в іншому "джерелі" (origin).

## Джерело (Origin)

# GORM

The fantastic ORM library for Golang, aims to be developer friendly.

[![go report card](https://goreportcard.com/badge/github.com/go-gorm/gorm "go report card")](https://goreportcard.com/report/github.com/go-gorm/gorm)
[![test status](https://github.com/go-gorm/gorm/actions/workflows/tests.yml/badge.svg)](https://github.com/go-gorm/gorm/actions)
[![MIT license](https://img.shields.io/badge/license-MIT-brightgreen.svg)](https://opensource.org/licenses/MIT)

# CORS (Cross-Origin Resource Sharing) { #cors-cross-origin-resource-sharing }

<a href="https://developer.mozilla.org/en-US/docs/Web/HTTP/CORS" class="external-link" target="_blank">CORS o "Cross-Origin Resource Sharing"</a> se refiere a situaciones en las que un frontend que se ejecuta en un navegador tiene código JavaScript que se comunica con un backend, y el backend está en un "origen" diferente al frontend.

## Origen { #origin }

Wenn Sie mehr über Formularfelder und ihre Kodierungen lesen möchten, besuchen Sie die <a href="https://developer.mozilla.org/en-US/docs/Web/HTTP/Methods/POST" class="external-link" target="_blank"><abbr title="Mozilla Developer Network – Mozilla-Entwicklernetzwerk">MDN</abbr>-Webdokumentation für <code>POST</code></a>.

///

/// warning | Achtung

    """
    Create an invoice.

    This will (let's imagine) let the API user (some external developer) create an
    invoice.

    And this path operation will:

    * Send the invoice to the client.
    * Collect the money from the client.
    * Send a notification back to the API user (the external developer), as a callback.
        * At this point is that the API will somehow send a POST request to the