Para eso, usas `app.add_middleware()` (como en el ejemplo para CORS).

```Python
from fastapi import FastAPI
from unicorn import UnicornMiddleware

app = FastAPI()

app.add_middleware(UnicornMiddleware, some_config="rainbow")
```

Для этого используйте `app.add_middleware()` (как в примере с CORS).

```Python
from fastapi import FastAPI
from unicorn import UnicornMiddleware

app = FastAPI()

app.add_middleware(UnicornMiddleware, some_config="rainbow")
```

En el camino de la request, el middleware más externo se ejecuta primero.

En el camino de la response, se ejecuta al final.

Por ejemplo:

```Python
app.add_middleware(MiddlewareA)
app.add_middleware(MiddlewareB)
```

На пути обработки запроса сначала выполняется самое внешнее middleware.

На пути формирования ответа оно выполняется последним.

Например:

```Python
app.add_middleware(MiddlewareA)
app.add_middleware(MiddlewareB)

Dazu verwenden Sie `app.add_middleware()` (wie schon im Beispiel für CORS gesehen).

```Python
from fastapi import FastAPI
from unicorn import UnicornMiddleware

app = FastAPI()

app.add_middleware(UnicornMiddleware, some_config="rainbow")
```

Auf dem Requestpfad läuft die *äußerste* Middleware zuerst.

Auf dem Responsepfad läuft sie zuletzt.

Zum Beispiel:

```Python
app.add_middleware(MiddlewareA)
app.add_middleware(MiddlewareB)
```

from fastapi import FastAPI
from fastapi.middleware.gzip import GZipMiddleware

app = FastAPI()

app.add_middleware(GZipMiddleware, minimum_size=1000, compresslevel=5)


@app.get("/")
async def main():

from fastapi import FastAPI
from fastapi.middleware.trustedhost import TrustedHostMiddleware

app = FastAPI()

app.add_middleware(
    TrustedHostMiddleware, allowed_hosts=["example.com", "*.example.com"]
)


@app.get("/")
async def main():

app = FastAPI()

origins = [
    "http://localhost.tiangolo.com",
    "https://localhost.tiangolo.com",
    "http://localhost",
    "http://localhost:8080",
]

app.add_middleware(
    CORSMiddleware,
    allow_origins=origins,
    allow_credentials=True,
    allow_methods=["*"],
    allow_headers=["*"],
)


@app.get("/")
async def main():

On the request path, the *outermost* middleware runs first.

On the response path, it runs last.

For example:

```Python
app.add_middleware(MiddlewareA)
app.add_middleware(MiddlewareB)
```