```Python
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: str | None = None):
    return {"item_id": item_id, "q": q}
```

### Dockerfile { #dockerfile }

Erstellen Sie nun im selben Projektverzeichnis eine Datei `Dockerfile` mit:

```{ .dockerfile .annotate }

{* ../../docs_src/bigger_applications/app_an_py310/routers/items.py hl[5:10,16,21] title["app/routers/items.py"] *}

各 *path operation* のパスは次のように `/` で始める必要があるため:

```Python hl_lines="1"
@router.get("/{item_id}")
async def read_item(item_id: str):
    ...
```

...prefix の末尾に `/` を含めてはいけません。

この場合の prefix は `/items` です。

また、`tags` のリストや追加の `responses` を、このルーターに含まれるすべての *path operations* に適用するよう追加できます。

def get_items(item_a: str, item_b: int, item_c: float, item_d: bool, item_e: bytes):

            final String item1Id = item1.getId();
            if (mergedIdSet.contains(item1Id)) {
                continue;
            }

            SuggestItem mergedItem = item1;
            for (final SuggestItem item2 : items) {
                if (item1.equals(item2)) {
                    continue;
                }

                final String item2Id = item2.getId();

  public final String team_name;
  public final String team_id;

  public OAuthSession(
      boolean ok, String accessToken, String scope, String userId, String teamName, String teamId) {
    this.ok = ok;
    this.access_token = accessToken;
    this.scope = scope;
    this.user_id = userId;
    this.team_name = teamName;
    this.team_id = teamId;
  }

  @Override public String toString() {

}

LARGE_PAYLOAD: dict[str, Any] = {"items": LARGE_ITEMS, "metadata": LARGE_METADATA}


def dep_a():
    return 40


def dep_b(a: Annotated[int, Depends(dep_a)]):
    return a + 2


class ItemIn(BaseModel):
    name: str
    value: int


class ItemOut(BaseModel):
    name: str
    value: int
    dep: int


class LargeIn(BaseModel):
    items: list[dict[str, Any]]

      CancellationManager* cancellation_manager) = 0;

  // Returns the stack trace set by `SetStackTrace` if exists.
  virtual absl::optional<ManagedStackTrace> GetStackTrace() = 0;

  virtual void SetStepId(int64_t step_id) = 0;

  // For LLVM style RTTI.
  static bool classof(const AbstractOperation* ptr) {
    return ptr->getKind() == kEager || ptr->getKind() == kTfrt;
  }

 protected:

	DB.Model(&users).Association("Toys").Clear()
	AssertAssociationCount(t, users, "Toys", 0, "After Clear")
}

func TestHasManyAssociationUnscoped(t *testing.T) {
	type ItemContent struct {
		gorm.Model
		ItemID       uint   `gorm:"not null"`
		Name         string `gorm:"not null;type:varchar(50)"`
		LanguageCode string `gorm:"not null;type:varchar(2)"`
	}
	type Item struct {
		gorm.Model

                    + ((ByteArrayOutputStream) out2).toString(CoreLibConstants.UTF_8);
        } catch (final IOException e) {
            throw new SuggesterException("Failed to serialize SuggestItem to bulk line format: itemId=" + item.getId(), e);
        }
    }

    private static OutputStream getXContentOutputStream(final Map<String, Object> firstLineMap) throws IOException {

		Number1 int64      `gorm:"default:NULL"`
		Number2 uint64     `gorm:"default:NULL"`
		Number3 float64    `gorm:"default:NULL"`
		Now     *time.Time `gorm:"default:NULL"`
		Item1Id string
		Item1   *QueryResetItem `gorm:"references:ID"`
		Item2Id string
		Item2   *QueryResetItem `gorm:"references:ID"`
	}

	DB.Migrator().DropTable(&QueryResetNullValue{}, &QueryResetItem{})