# Middleware

There are several middlewares available provided by Starlette directly.

Read more about them in the [FastAPI docs for Middleware](https://fastapi.tiangolo.com/advanced/middleware/).

::: fastapi.middleware.cors.CORSMiddleware

It can be imported from `fastapi`:

```python
from fastapi.middleware.cors import CORSMiddleware
```

::: fastapi.middleware.gzip.GZipMiddleware

It can be imported from `fastapi`:

        return "user"

    app = FastAPI()

    @app.get("/")
    def endpoint(
        db: Annotated[str, Depends(get_db)],
        user: Annotated[str, Security(get_user, scopes=["read"])],
    ):
        return {"db": db}

    return app


@pytest.fixture(name="client")
def client_fixture(app: FastAPI):
    return TestClient(app)


def test_security_scopes_dependency_called_once(

                        }
                    },
                }
            },
            "/users/": {
                "get": {
                    "tags": ["users"],
                    "summary": "Read Users",
                    "operationId": "read_users_users__get",
                    "responses": {
                        "200": {
                            "description": "Successful Response",

                            "description": "Successful Response",
                            "content": {"application/json": {"schema": {}}},
                        }
                    },
                    "summary": "Read Current User",
                    "operationId": "read_current_user_users_me_get",
                    "security": [{"APIKeyCookie": []}],
                }
            }
        },
        "components": {

        assertTrue(region.getSize() >= 1024, "Region should be at least requested size");
        assertTrue(region.hasAccess(RdmaAccess.LOCAL_READ), "Should have local read access");
        assertTrue(region.hasAccess(RdmaAccess.REMOTE_READ), "Should have remote read access");

        // Verify provider was called
        verify(mockProvider, atLeastOnce()).registerMemory(any(ByteBuffer.class), any());
    }

    @Test

        Pattern pattern,
        UnsignedInteger ui,
        UnsignedLong ul,
        StringBuilder sb,
        Predicate<?> pred,
        Function<?, ?> func,
        Object obj) {
      delegate.foo(
          s, r, n, it, b, eq, e, in, c, ord, charset, unit, cls, joiner, pattern, ui, ul, sb, pred,
          func, obj);
    }

    @Override
    public String toString() {
      return delegate.toString();
    }

type Target struct {
	status int32

	totalMessages  int64
	failedMessages int64

	wg sync.WaitGroup

	// Channel of log entries.
	// Reading logCh must hold read lock on logChMu (to avoid read race)
	// Sending a value on logCh must hold read lock on logChMu (to avoid closing)
	logCh   chan any
	logChMu sync.RWMutex

	// store to persist and replay the logs to the target
	// to avoid missing events when the target is down.

                ByteArrayOutputStream baos = new ByteArrayOutputStream()) {
            int length = bis.read(bytes);
            while (length != -1) {
                if (length != 0) {
                    baos.write(bytes, 0, length);
                }
                length = bis.read(bytes);
            }
            return baos.toString(encoding);
        } catch (final Exception e) {

        }

        return ComponentUtil.getScriptEngineFactory().getScriptEngine(scriptType).evaluate(template, paramMap);
    }

    /**
     * Get the read interval.
     * @param paramMap The parameters.
     * @return The read interval.
     */
    protected long getReadInterval(final DataStoreParams paramMap) {
        long readInterval = 0;
        final String value = paramMap.getAsString("readInterval");

                                    }
                                }
                            },
                        },
                    },
                    "summary": "Read Unicorn",
                    "operationId": "read_unicorn_unicorns__name__get",
                    "parameters": [
                        {
                            "required": True,