///

## Return the token { #return-the-token }

The response of the `token` endpoint must be a JSON object.

It should have a `token_type`. In our case, as we are using "Bearer" tokens, the token type should be "`bearer`".

And it should have an `access_token`, with a string containing our access token.

For this simple example, we are going to just be completely insecure and return the same `username` as the token.

### Testé { #tested }

* 100 % de <dfn title="La quantité de code testée automatiquement">couverture de test</dfn>.
* 100 % de base de code <dfn title="Annotations de type Python ; avec cela votre éditeur et les outils externes peuvent vous offrir un meilleur support">annotée avec des types</dfn>.
* Utilisé dans des applications en production.

## Fonctionnalités de Starlette { #starlette-features }

	for range 10 {
		go HammerMutex(m, loops, c)
	}
	for range 10 {
		<-c
	}
}

func BenchmarkMutexUncontended(b *testing.B) {
	b.ResetTimer()
	b.ReportAllocs()

	type PaddedMutex struct {
		*DRWMutex
	}
	b.RunParallel(func(pb *testing.PB) {
		mu := PaddedMutex{NewDRWMutex(ds, "")}
		for pb.Next() {
			mu.Lock(id, source)
			mu.Unlock(b.Context())
		}
	})
}

                    addViolation(
                            problems,
                            Severity.WARNING,
                            Version.V20,
                            prefix + prefix2 + "type",
                            key,
                            "must be 'pom' to import the managed dependencies.",
                            dependency);

in an unspecified order.
This means that races on multiword data structures
can lead to inconsistent values not corresponding to a single write.
When the values depend on the consistency
of internal (pointer, length) or (pointer, type) pairs,
as can be the case for interface values, maps,
slices, and strings in most Go implementations,
such races can in turn lead to arbitrary memory corruption.
</p>

<p>

  print('You have Clang %s installed.\n' % curr_version)
  return curr_version


# Disable clang extension that rejects type definitions within offsetof.
# This was added in clang-16 by https://reviews.llvm.org/D133574.
# Still required for clang-17.
# Can be removed once upb is updated, since a type definition is used within
# offset of in the current version of ubp. See

    }

    @ParameterizedTest
    @ValueSource(bytes = { 0x00, 0x7F, (byte) 0xFF })
    @DisplayName("initSecContext throws on invalid token type")
    void testInitSecContextInvalidTokenType(byte firstByte) throws Exception {
        SpnegoContext ctx = newContext();

        // Invalid first byte should be rejected by token parsing

        // notify listeners about "soft" project build failures only
        if (t instanceof Exception exception && !(t instanceof RuntimeException)) {
            eventCatapult.fire(ExecutionEvent.Type.ProjectFailed, currentSession, null, exception);
        }

        // reactor failure modes
        if (t instanceof RuntimeException || !(t instanceof Exception)) {

**FastAPI** llama a la clase `CommonQueryParams`. Esto crea una "instance" de esa clase y la instance será pasada como el parámetro `commons` a tu función.

## Anotación de tipos vs `Depends` { #type-annotation-vs-depends }

Nota cómo escribimos `CommonQueryParams` dos veces en el código anterior:

//// tab | Python 3.10+

```Python
commons: Annotated[CommonQueryParams, Depends(CommonQueryParams)]
```

* `allow_headers` - 允許跨來源請求所支援的 HTTP 請求標頭清單。預設為 `[]`。你可以使用 `['*']` 來允許所有標頭。對於[簡單 CORS 請求](https://developer.mozilla.org/en-US/docs/Web/HTTP/CORS#simple_requests)，`Accept`、`Accept-Language`、`Content-Language` 與 `Content-Type` 標頭一律被允許。
* `allow_credentials` - 指示是否支援跨來源請求的 Cookie。預設為 `False`。