/// tip

You can set a dependency override for a dependency used anywhere in your **FastAPI** application.

The original dependency could be used in a *path operation function*, a *path operation decorator* (when you don't use the return value), a `.include_router()` call, etc.

FastAPI will still be able to override it.

///

Then you can reset your overrides (remove them) by setting `app.dependency_overrides` to be an empty `dict`:

```Python
L46

If you want to secure your API, there are several better things you can do, for example:

* Make sure you have well defined Pydantic models for your request bodies and responses.
* Configure any required permissions and roles using dependencies.

	AssertEqual(t, names1, []string{"distinct", "distinct-2", "distinct-3"})

	var names2 []string
	DB.Scopes(func(db *gorm.DB) *gorm.DB {
		return db.Table("users")
	}).Where("name like ?", "distinct%").Order("name").Pluck("name", &names2)
	AssertEqual(t, names2, []string{"distinct", "distinct", "distinct", "distinct-2", "distinct-3"})

	var results []User

app = FastAPI()


class Item(BaseModel):
    name: str
    age: condecimal(gt=Decimal(0.0))  # type: ignore


@app.post("/items/")
def save_item_no_body(item: list[Item]):
    return {"item": item}


client = TestClient(app)


def test_put_correct_body():
    response = client.post("/items/", json=[{"name": "Foo", "age": 5}])
    assert response.status_code == 200, response.text

    ],
)
def get_client(request: pytest.FixtureRequest):
    mod = importlib.import_module(f"docs_src.body_fields.{request.param}")

    client = TestClient(mod.app)
    return client


def test_items_5(client: TestClient):
    response = client.put("/items/5", json={"item": {"name": "Foo", "price": 3.0}})
    assert response.status_code == 200
    assert response.json() == {

    ],
)
def get_client(request: pytest.FixtureRequest):
    mod = importlib.import_module(f"docs_src.dataclasses_.{request.param}")

    client = TestClient(mod.app)
    client.headers.clear()
    return client


def test_post_authors_item(client: TestClient):
    response = client.post(
        "/authors/foo/items/",
        json=[{"name": "Bar"}, {"name": "Baz", "description": "Drop the Baz"}],
    )

    for (key in propagatedEnvironmentVariables) {
        val value = System.getenv(key)
        if (value != null) {
            result[key] = value
        }
    }
    return result

                    "name": "Baz",
                    "price": "thirty five point four",
                },
            },
        },
    ),
):
    results = {"item_id": item_id, "item": item}

def generate_stream(query: str):
    for ch in query:
        yield ch
        time.sleep(0.1)


@app.get("/generate", dependencies=[Depends(get_user)])
def generate(query: str):

        @Test
        @DisplayName("Should always return 0 for readBytesWireFormat")
        void testReadBytesWireFormat() {
            byte[] buffer = new byte[1024];
            int result = request.readBytesWireFormat(buffer, 0);
            assertEquals(0, result);
        }

        @Test
        @DisplayName("Should return 0 regardless of buffer position")