"content": {
                            "application/json": {



...
```

#### À quoi sert OpenAPI

Le schéma **OpenAPI** est ce qui alimente les deux systèmes de documentation interactive.

Et il existe des dizaines d'alternatives, toutes basées sur **OpenAPI**. Vous pourriez facilement ajouter n'importe laquelle de ces alternatives à votre application **FastAPI**.

   * semicolon</a>, rather than the ampersand, as a parameter delimiter. Nevertheless, we recommend
   * using the ampersand unless you must interoperate with systems that require semicolons.
   *
   * <p><b>Note:</b> Unlike other escapers, URL escapers produce <a
   * href="https://url.spec.whatwg.org/#percent-encode">uppercase</a> hexadecimal sequences.
   *
   */

    * All this would also work for deeply nested JSON objects.
* Convert from and to JSON automatically.
* Document everything with OpenAPI, that can be used by:
    * Interactive documentation systems.
    * Automatic client code generation systems, for many languages.
* Provide 2 interactive documentation web interfaces directly.

---

We just scratched the surface, but you already get the idea of how it all works.

# Escopos OAuth2 { #oauth2-scopes }

Você pode utilizar escopos do OAuth2 diretamente com o **FastAPI**, eles são integrados para funcionar perfeitamente.

Isso permitiria que você tivesse um sistema de permissionamento mais refinado, seguindo o padrão do OAuth2 integrado na sua aplicação OpenAPI (e as documentações da API).

	//
	// By specification, the only other encoding permitted should be CP-437,
	// but historically many ZIP readers interpret Name and Comment as whatever
	// the system's local character encoding happens to be.
	//
	// This flag should only be set if the user intends to encode a non-portable
	// ZIP file for a specific localized region. Otherwise, the Writer

of this definition, "submitted" means any form of electronic, verbal, or written communication sent to the Licensor or its representatives, including but not limited to communication on electronic mailing lists, source code control systems, and issue tracking systems that are managed by, or on behalf of, the Licensor for the purpose of discussing and improving the Work, but excluding communication that is conspicuously marked or otherwise designated in writing by the copyright owner as "Not a Contribution."...

Todo esse processo de renovação, enquanto o aplicativo ainda funciona, é uma das principais razões para preferir um sistema separado para gerenciar HTTPS com um Proxy de Terminação TLS em vez de usar os certificados TLS no servidor da aplicação diretamente (e.g. com o Uvicorn).

## Cabeçalhos encaminhados por Proxy { #proxy-forwarded-headers }

                            "application/json": {



...
```

#### What is OpenAPI for { #what-is-openapi-for }

The OpenAPI schema is what powers the two interactive documentation systems included.

And there are dozens of alternatives, all based on OpenAPI. You could easily add any of those alternatives to your application built with **FastAPI**.

### Dependency injection

FastAPI'ın inanılmaz derecede kullanımı kolay, fakat inanılmaz derecede güçlü <abbr title='"components", "resources", "services", "providers" olarak da bilinen'><strong>Dependency Injection </strong></abbr> sistemi var.

* Dependencylerin bile dependencies'i olabiliyor, FastAPI bunun  için **graph of "dependency"** yaratıyor.
* Hepsi **otomatik olarak** FastAPI tarafından hallediliyor.

        // Create a file that exists but will cause an IOException when read
        File lmhostsFile = tempDir.resolve("lmhosts").toFile();
        lmhostsFile.createNewFile();

        // Make file unreadable on Unix-like systems
        boolean isWindows = System.getProperty("os.name").toLowerCase().contains("windows");
        if (!isWindows) {
            assertTrue(lmhostsFile.setReadable(false));
        }