{* ../../docs_src/extending_openapi/tutorial001_py39.py hl[13:14,25:26] *}

### Die Methode überschreiben { #override-the-method }

Jetzt können Sie die Methode `.openapi()` durch Ihre neue Funktion ersetzen.

{* ../../docs_src/extending_openapi/tutorial001_py39.py hl[29] *}

		t.Errorf("Should found one user's name is 2, but got %v", len(users2))
	}

	DB.Scopes(NameIn([]string{users[0].Name, users[2].Name})).Find(&users3)
	if len(users3) != 2 {
		t.Errorf("Should found two users's name in 1, 3, but got %v", len(users3))
	}

	db := DB.Scopes(func(tx *gorm.DB) *gorm.DB {
		return tx.Table("custom_table")
	}).Session(&gorm.Session{})

	db.AutoMigrate(&User{})

Luego puedes crear otra función de dependencia (un "dependable") que al mismo tiempo declare una dependencia propia (por lo que también es un "dependant"):

{* ../../docs_src/dependencies/tutorial005_an_py310.py hl[13] *}

Centrémonos en los parámetros declarados:

* Aunque esta función es una dependencia ("dependable") en sí misma, también declara otra dependencia (depende de algo más).

It will be generated only once, and then the same cached schema will be used for the next requests.

{* ../../docs_src/extending_openapi/tutorial001_py39.py hl[13:14,25:26] *}

### Override the method { #override-the-method }

Now you can replace the `.openapi()` method with your new function.

{* ../../docs_src/extending_openapi/tutorial001_py39.py hl[29] *}

	{"fofofofofoofofoffofoobarfoo", "foffof", 13},
	{"fofofofofofofoffofoobarfoo", "foffofo", 12},
	{"fofofofofoofofoffofoobarfoo", "foffofo", 13},
	{"fofofofofoofofoffofoobarfoo", "foffofoo", 13},
	{"fofofofofofofoffofoobarfoo", "foffofoo", 12},
	{"fofofofofoofofoffofoobarfoo", "foffofoob", 13},
	{"fofofofofofofoffofoobarfoo", "foffofoob", 12},
	{"fofofofofoofofoffofoobarfoo", "foffofooba", 13},

            byte[] buffer = { 1, 2, 3, 4, 5 };
            response.setRetainPayload(true);
            response.setDigest(null);

            response.haveResponse(buffer, 1, 3);

            byte[] payload = response.getRawPayload();
            assertNotNull(payload);
            assertEquals(3, payload.length);
            assertArrayEquals(new byte[] { 2, 3, 4 }, payload);

Наприклад, Ви можете додати власний заголовок `X-Process-Time`, який міститиме час у секундах, який витратився на обробку запиту та генерацію відповіді:

{* ../../docs_src/middleware/tutorial001.py hl[10,12:13] *}


/// tip | Підказка

		}
	}
}

func TestFitsInOctal(t *testing.T) {
	vectors := []struct {
		input int64
		width int
		ok    bool
	}{
		{-1, 1, false},
		{-1, 2, false},
		{-1, 3, false},
		{0, 1, true},
		{0 + 1, 1, false},
		{0, 2, true},
		{07, 2, true},
		{07 + 1, 2, false},
		{0, 4, true},
		{0777, 4, true},
		{0777 + 1, 4, false},
		{0, 8, true},

Então, você pode criar uma outra função para uma dependência (um "dependable") que ao mesmo tempo declara sua própria dependência (o que faz dela um "dependente" também):

{* ../../docs_src/dependencies/tutorial005_an_py310.py hl[13] *}

Vamos focar nos parâmetros declarados:

* Mesmo que essa função seja uma dependência ("dependable") por si mesma, ela também declara uma outra dependência (ela "depende" de outra coisa).

///

### 在 `response` 的前和后

在任何*路径操作*收到`request`前,可以添加要和请求一起运行的代码.

也可以在*响应*生成但是返回之前添加代码.

例如你可以添加自定义请求头 `X-Process-Time` 包含以秒为单位的接收请求和生成响应的时间:

{* ../../docs_src/middleware/tutorial001.py hl[10,12:13] *}

## 其他中间件

你可以稍后在 [Advanced User Guide: Advanced Middleware](../advanced/middleware.md){.internal-link target=_blank}阅读更多关于中间件的教程.