Let's say you only have a single `item` body parameter from a Pydantic model `Item`.

By default, **FastAPI** will then expect its body directly.

But if you want it to expect a JSON with a key `item` and inside of it the model contents, as it does when you declare extra body parameters, you can use the special `Body` parameter `embed`:

```Python
item: Item = Body(embed=True)
```

as in:

			for _, item := range status.Items {
				if err = enc.Encode(&item); err != nil {
					log.Fatalln(err)
				}
			}
			break
		}
		if status.Summary == "stopped" {
			fmt.Println("Healstatus on items ===")
			fmt.Println("Heal failed with", status.FailureDetail)
			break
		}

		for _, item := range status.Items {
			if err = enc.Encode(&item); err != nil {
				log.Fatalln(err)
			}

@app.delete("/items/{item_id}")
def delete_item(item_id: str, item: Item):
    return {"item_id": item_id, "item": item}


@app.head("/items/{item_id}")
def head_item(item_id: str):
    return JSONResponse(None, headers={"x-fastapi-item-id": item_id})


@app.options("/items/{item_id}")
def options_item(item_id: str):
    return JSONResponse(None, headers={"x-fastapi-item-id": item_id})


@app.patch("/items/{item_id}")

      assertEquals(
          "the hash of " + item + " must be consistent",
          equivalence.hash(item),
          equivalence.hash(item));
    }
  }

      assertEquals(
          "the hash of " + item + " must be consistent",
          equivalence.hash(item),
          equivalence.hash(item));
    }
  }

        source.put(FieldNames.TIMESTAMP, System.currentTimeMillis());

        SuggestItem item = SuggestItemSerializer.fromSource(source);

        assertNotNull(item);
        assertEquals("test text", item.getText());
        assertEquals(10L, item.getDocFreq());
        assertEquals(5L, item.getQueryFreq());
        assertEquals(1.5f, item.getUserBoost(), 0.001f);
    }

    @Test
    public void testToJson() {

app = FastAPI()


class Item(BaseModel):
    name: str = Field(examples=["Foo"])
    description: str | None = Field(default=None, examples=["A very nice Item"])
    price: float = Field(examples=[35.4])
    tax: float | None = Field(default=None, examples=[3.2])


@app.put("/items/{item_id}")
async def update_item(item_id: int, item: Item):
    results = {"item_id": item_id, "item": item}

        SuggestItem item = defaultContentsParser.parseSearchWords(words, readings, fields, tags, roles, 10, createDefaultReadingConverter(),
                createDefaultNormalizer(), analyzer, langs);

        assertNotNull(item);
        assertEquals("検索 エンジン", item.getText());
        assertEquals(SuggestItem.Kind.QUERY, item.getKinds()[0]);
        assertEquals(10, item.getQueryFreq());
    }

    @Test

from fastapi import Body, FastAPI
from pydantic import BaseModel

app = FastAPI()


class Item(BaseModel):
    name: str
    description: str | None = None
    price: float
    tax: float | None = None


@app.put("/items/{item_id}")
async def update_item(
    *,
    item_id: int,
    item: Item = Body(
        openapi_examples={
            "normal": {
                "summary": "A normal example",

				<div class="mt-3">
					<p class="mb-1"><la:message key="labels.search_popular_word_word" /></p>
					<p>
						<c:forEach var="item" varStatus="s" items="${popularWords}">
							<la:link href="/search?q=${f:u(item)}${fe:facetQuery()}${fe:geoQuery()}"
								styleClass="btn btn-outline-secondary btn-sm me-1 mb-1">${f:h(item)}</la:link>
						</c:forEach>
					</p>
				</div>
			</c:if>
		</div>
	</div>