# 全局依赖项

有时，我们要为整个应用添加依赖项。

通过与定义[*路径装饰器依赖项*](dependencies-in-path-operation-decorators.md){.internal-link target=_blank} 类似的方式，可以把依赖项添加至整个 `FastAPI` 应用。

这样一来，就可以为所有*路径操作*应用该依赖项：

```Python hl_lines="15"
{!../../docs_src/dependencies/tutorial012.py!}
```

[*路径装饰器依赖项*](dependencies-in-path-operation-decorators.md){.internal-link target=_blank} 一章的思路均适用于全局依赖项， 在本例中，这些依赖项可以用于应用中的所有*路径操作*。

## 为一组路径操作定义依赖项

                    "parameters": [
                        {
                            "required": True,
                            "schema": {"title": "File Path", "type": "string"},
                            "name": "file_path",
                            "in": "path",
                        }
                    ],
                }
            }
        },
        "components": {
            "schemas": {

      "type": "bridge"
    },
    {
      "sysctl": {
        "net.core.somaxconn": "500"
      },
      "type": "tuning"
    },
    {
      "ambient_enabled": false,
      "cni_agent_run_dir": "/path/to/kubeconfig",
      "dns": {},
      "exclude_namespaces": [
        ""
      ],
      "ipam": {},
      "name": "istio-cni",
      "plugin_log_level": "debug",
      "type": "istio-cni"
    }
  ]

 */
internal fun FileSystem.isCivilized(file: Path): Boolean {
  sink(file).use {
    try {
      delete(file)
      return true
    } catch (_: IOException) {
    }
  }
  delete(file)
  return false
}

/** Delete file we expect but don't require to exist. */
internal fun FileSystem.deleteIfExists(path: Path) {
  try {
    delete(path)
  } catch (fnfe: FileNotFoundException) {
    return

            try {
                Path configDir = Paths.get(System.getProperty(TestProperties.TEST_CONFIG_DIR));
                Iterator<Path> it = Files.newDirectoryStream(configDir).iterator();

                while ( it.hasNext() ) {
                    Path config = it.next();
                    loadConfigFile(config, applyMutations, configs);
                }

// along with this program.  If not, see <http://www.gnu.org/licenses/>.

package config

// UI errors
var (
	ErrInvalidXLValue = newErrFn(
		"Invalid drive path",
		"Please provide a fresh drive for single drive MinIO setup",
		"MinIO only supports fresh drive paths",
	)

	ErrInvalidBrowserValue = newErrFn(
		"Invalid console value",
		"Please check the passed value",

                            "required": True,
                            "schema": {"title": "Item Id", "type": "string"},
                            "name": "item_id",
                            "in": "path",
                        }
                    ],
                }
            },
            "/starlette-items/{item_id}": {
                "get": {
                    "responses": {

 * under the License.
 */
package org.apache.maven.model.io;

import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.io.Reader;
import java.nio.file.Path;
import java.util.Map;

import org.apache.maven.model.Model;

/**
 * Handles deserialization of a model from some kind of textual format like XML.
 *

import okhttp3.internal.publicsuffix.PublicSuffixDatabase.Companion.PUBLIC_SUFFIX_RESOURCE
import okio.BufferedSink
import okio.ByteString
import okio.ByteString.Companion.encodeUtf8
import okio.FileSystem
import okio.Path
import okio.Path.Companion.toPath
import okio.buffer
import okio.gzip

/**
 * Downloads the public suffix list from https://publicsuffix.org/list/public_suffix_list.dat and

sections. existingSecret: "" ## Directory on the MinIO pof certsPath: "/etc/minio/certs/" configPathmc: "/etc/minio/mc/" ## Path where PV would be mounted on the MinIO Pod mountPath: "/export" ## Override the root directory which the minio server should serve from. ## If left empty, it defaults to the value of {{ .Values.mountPath }} ## If defined, it must be a sub-directory of the path specified in {{ .Values.mountPath }} ## bucketRoot: "" # Number of drives attached to a node drivesPerNode: 1 # Number...