* Создайте файл `main.py` и заполните его:

```Python
from typing import Union

from fastapi import FastAPI

app = FastAPI()


@app.get("/")
def read_root():
    return {"Hello": "World"}


@app.get("/items/{item_id}")
def read_item(item_id: int, q: Union[str, None] = None):
    return {"item_id": item_id, "q": q}
```

### Dockerfile

What happened to you?  Tell us all about it!'

  Last came a little feeble, squeaking voice, (`That's Bill,'
thought Alice,) `Well, I hardly know--No more, thank ye; I'm
better now--but I'm a deal too flustered to tell you--all I know
is, something comes at me like a Jack-in-the-box, and up I goes
like a sky-rocket!'

  `So you did, old fellow!' said the others.

```

En contrepartie l'API _des opérations de chemin_ de FastAPI pourrait ressembler à ceci :

```Python hl_lines="1"
@app.get("/some/url")
def read_url():
    return {"message": "Hello World"}
```

Notez les similitudes entre `requests.get(...)` et `@app.get(...)`.

/// check | "A inspiré **FastAPI** à"

Avoir une API simple et intuitive.

* Erstellen Sie eine `main.py`-Datei mit:

```Python
from typing import Union

from fastapi import FastAPI

app = FastAPI()


@app.get("/")
def read_root():
    return {"Hello": "World"}


@app.get("/items/{item_id}")
def read_item(item_id: int, q: Union[str, None] = None):
    return {"item_id": item_id, "q": q}
```

### Dockerfile

<pre>
string([]byte{'h', 'e', 'l', 'l', '\xc3', '\xb8'})   // "hellø"
string([]byte{})                                     // ""
string([]byte(nil))                                  // ""

type bytes []byte
string(bytes{'h', 'e', 'l', 'l', '\xc3', '\xb8'})    // "hellø"

type myByte byte
string([]myByte{'w', 'o', 'r', 'l', 'd', '!'})       // "world!"

* 创建一个 `main.py` 文件：



```Python
from typing import Union

from fastapi import FastAPI

app = FastAPI()


@app.get("/")
def read_root():
    return {"Hello": "World"}


@app.get("/items/{item_id}")
def read_item(item_id: int, q: Union[str, None] = None):
    return {"item_id": item_id, "q": q}
```

### Dockerfile

ion-S3-Sealed-Key":"IAAfAJaocQecqeP8FWRJ/3GY+eaIyVnK9tvqYSckw==","X-Minio-Internal-Server-Side-Encryption-Seal-Algorithm":"DAREv2-HMAC-SHA256","content-type":"application/octet-stream"}},{"Bucket":"buck1","Name":"go_113/src/cmd/go/testdata/src/hello/hello.go","UserDef":{"X-Minio-Internal-Server-Side-Encryption-Iv":"E9k8ypckLLugDWq29Hpi=","X-Minio-Internal-Server-Side-Encryption-S3-Kms-Key-Id":"my-minio-key","X-Minio-Internal-Server-Side-Encryption-S3-Kms-Sealed-Key":"IAAfAJ33bGDB45sbvnxX+SoMoiSh...

	case *ast.SelectorExpr:
		goname = fun.Sel.Name
	case *ast.Ident:
		goname = strings.TrimPrefix(fun.Name, "_C2func_")
		goname = strings.TrimPrefix(goname, "_Cfunc_")
	}
	if goname == "" || goname == "malloc" {
		return "", false
	}
	name := f.Name[goname]
	if name == nil || name.Kind != "func" {
		// Probably a type conversion.
		return "", false
	}

	params := name.FuncType.Params

    // attempt to delete the file. Do not explicitly close the cache here so the entry is left as
    // incomplete.
    val creator = cache.edit("k1")!!
    creator.newSink(0).buffer().use {
      it.writeUtf8("Hello")
    }

    // Simulate a severe Filesystem failure on the first initialization.
    filesystem.setFaultyDelete(cacheDir / "k1.0.tmp", true)
    filesystem.setFaultyDelete(cacheDir, true)
    cache =

```Python
response = requests.get("http://example.com/some/url")
```

対応するFastAPIのパスオペレーションはこのようになります:

```Python hl_lines="1"
@app.get("/some/url")
def read_url():
    return {"message": "Hello World"}
```

 `requests.get(...)` と`@app.get(...)` には類似点が見受けられます。

/// check | "**FastAPI**へ与えたインスピレーション"

* シンプルで直感的なAPIを持っている点。
* HTTPメソッド名を直接利用し、単純で直感的である。
* 適切なデフォルト値を持ちつつ、強力なカスタマイズ性を持っている。