}
```

但如果用戶端請求 `http://example.com/items/bar`（不存在的 `item_id` `"bar"`），會收到 404（"not found"）的 HTTP 狀態碼，以及以下 JSON 回應：

```JSON
{
  "detail": "Item not found"
}
```

/// tip

在 raise 一個 `HTTPException` 時，你可以將任何可轉為 JSON 的值作為 `detail` 參數，不只限於 `str`。

你可以傳入 `dict`、`list` 等。

**FastAPI** 會自動處理並轉為 JSON。

///

## 新增自訂標頭 { #add-custom-headers }

有些情況需要在 HTTP 錯誤回應中加入自訂標頭，例如某些安全性情境。

        raise InternalError(
            f"The portal gun is too dangerous to be owned by {username}"
        )
    if item_id != "plumbus":
        raise HTTPException(
            status_code=404, detail="Item not found, there's only a plumbus here"
        )

# Auto detect text files and perform LF normalization
* text=auto

# Known text files
*.java text
*.xml text
*.yml text
*.md text
*.sh text
*.css text
*.txt text

# Known binary files

        raise InternalError(
            f"The portal gun is too dangerous to be owned by {username}"
        )
    if item_id != "plumbus":
        raise HTTPException(
            status_code=404, detail="Item not found, there's only a plumbus here"
        )

  rm -f $MINIO_ACCESSKEY_SECRETKEY_TMP

  # set policy for user
  if [ ! -z $POLICY -a $POLICY != " " ] ; then
      echo "Adding policy '$POLICY' for '$USER'"
      set +e ; # policy already attach errors out, allow it.
      ${MC} admin policy attach myminio $POLICY --user=$USER
      set -e
  else
      echo "User '$USER' has no policy attached."
  fi
}

# Try connecting to MinIO instance
{{- if .Values.tls.enabled }}

        // Verify large message is handled
        assertNotNull(result);
        assertTrue(result.length() > 1000);
        assertTrue(result.contains("Error detail 0"));
        assertTrue(result.contains("Error detail 999"));
        assertTrue(result.endsWith("\n"));
    }

    @Test
    public void test_execute_withCheckedExceptionWrapped() {

def test_model_optional_str_missing():
    client = TestClient(app)
    response = client.post("/model-optional-str")
    assert response.status_code == 422, response.text
    assert response.json() == {
        "detail": [
            {
                "input": None,
                "loc": ["body"],
                "msg": "Field required",
                "type": "missing",
            },
        ],
    }

    private static final Logger logger = LogManager.getLogger(StorageClientFactory.class);

    private StorageClientFactory() {
        // Utility class
    }

    /**
     * Auto-detect storage type from endpoint URL.
     *
     * @param endpoint the storage endpoint URL
     * @return detected storage type
     */
    public static StorageType detectStorageType(final String endpoint) {

                        "properties": {
                            "detail": {
                                "items": {
                                    "$ref": "#/components/schemas/ValidationError"
                                },
                                "type": "array",
                                "title": "Detail",
                            }
                        },

            "-Dorg.gradle.java.installations.auto-download=false",
            "-Porg.gradle.java.installations.auto-download=false",
            "-Dorg.gradle.java.installations.auto-detect=false",
            "-Porg.gradle.java.installations.auto-detect=false",
            "\"-Dorg.gradle.java.installations.paths=$expectedInstallationPaths\"",
            "\"-Porg.gradle.java.installations.paths=$expectedInstallationPaths\"",