applications **FastAPI** s'exécutant sous Uvicorn sont <a href="https://www.techempower.com/benchmarks/#section=test&runid=7464e520-0dc2-473d-bd34-dbdfd7e85911&hw=ph&test=query&l=zijzen-7" class="external-link" target="_blank"> parmi les frameworks existants en Python les plus rapides </a>, juste derrière Starlette et Uvicorn (utilisés en interne par FastAPI). (*)

Pour en savoir plus, consultez la section <a href="https://fastapi.tiangolo.com/fr/benchmarks/" class="internal-link" target="...

/// tip

Vous pouvez <a href="https://help.github.com/en/github/collaborating-with-issues-and-pull-requests/commenting-on-a-pull-request" class="external-link" target="_blank">ajouter des commentaires avec des suggestions de changement</a> aux pull requests existantes.

/// tip

Você pode <a href="https://help.github.com/en/github/collaborating-with-issues-and-pull-requests/commenting-on-a-pull-request" class="external-link" target="_blank">adicionar comentários com sugestões de alterações</a> para _pull requests_ existentes.

			expectedRespStatus: http.StatusBadRequest,
		},
		// Test case - 8.
		// non-existent bucket is used.
		// writing BucketPolicy should fail.
		// should result in 404 StatusNotFound
		{
			bucketName:         "non-existent-bucket",
			bucketPolicyReader: bytes.NewReader([]byte(fmt.Sprintf(bucketPolicyTemplate, "non-existent-bucket", "non-existent-bucket"))),

TEST_F(CApiExperimentalFunctionTest, EmptyGraphRemoveNonExistentFunction) {
  TF_GraphRemoveFunction(func_graph_, "wrong_name", s_);
  EXPECT_EQ(TF_INVALID_ARGUMENT, TF_GetCode(s_));
  EXPECT_EQ(string("Tried to remove non-existent function 'wrong_name'."),
            string(TF_Message(s_)));
}

TEST_F(CApiExperimentalFunctionTest, GraphRemoveNonExistentFunction) {
  TF_Function* funcs[1];
  DefineFunction(func_name_, &func_);

```
{
  "item": "The Foo Wrestlers"
}
```

Mas se o cliente faz uma requisição para `http://example.com/items/bar` (ou seja, um não existente `item_id "bar"`), esse cliente receberá um HTTP status code 404 (o erro "não encontrado" — *not found error*), e uma resposta JSON:

```JSON
{
  "detail": "Item not found"
}
```

/// tip | "Dica"

func TestNonExistentBucketOperations(t *testing.T) {
	ExecObjectLayerTest(t, testNonExistentBucketOperations)
}

// Tests validate that bucket operation on non-existent bucket fails.
func testNonExistentBucketOperations(obj ObjectLayer, instanceType string, t TestErrHandler) {
	var opts ObjectOptions

     * We overload this because we want readAndXWireFormat to
     * read the parameter words and bytes. This is so when
     * commands are batched together we can recursivly call
     * readAndXWireFormat without reading the non-existent header.
     */

    int decode( byte[] buffer, int bufferIndex ) {
        int start = headerStart = bufferIndex;

        bufferIndex += readHeaderWireFormat( buffer, bufferIndex );

  // or mis-configured policy definitions or bindings.
  //
  // A policy is invalid if spec.paramKind refers to a non-existent Kind.
  // A binding is invalid if spec.paramRef.name refers to a non-existent resource.
  //
  // failurePolicy does not define how validations that evaluate to false are handled.
  //

errors.app.db.already.deleted=d'autres peuvent être mis à jour, alors réessayez.
errors.app.db.already.updated=d'autres peuvent être mis à jour, alors réessayez.
errors.app.db.already.exists=données déjà existantes, alors réessayez.
errors.app.double.submit.request=Votre demande a peut-être été traitée avant cette demande. Veuillez vérifier et réessayer.