# Global Dependencies

For some types of applications you might want to add dependencies to the whole application.

Similar to the way you can [add `dependencies` to the *path operation decorators*](dependencies-in-path-operation-decorators.md){.internal-link target=_blank}, you can add them to the `FastAPI` application.

In that case, they will be applied to all the *path operations* in the application:

=== "Python 3.9+"

    ```Python hl_lines="16"

global1 file2 file3 file4...

LeeeeT <******@****.***> 1680341164 +0300

Sebastián Ramírez <******@****.***> 1697522351 +0400

Anis Eleuch <******@****.***> 1714113134 +0100

김명기 <******@****.***> 1707923147 +0900

Sebastián Ramírez <******@****.***> 1652313976 -0500

	// Ensure we don't pick up files as directories.
	globAll := filepath.Clean(dirPath) + `\*`
	globAllP, err := syscall.UTF16PtrFromString(globAll)
	if err != nil {
		return errInvalidArgument
	}
	data := &syscall.Win32finddata{}
	handle, err := syscall.FindFirstFile(globAllP, data)
	if err != nil {
		if err = syscallErrToFileErr(dirPath, err); err == errFileNotFound {
			return nil

// access is disabled.
func autoGenerateRootCredentials() {
	if GlobalKMS == nil {
		return
	}
	if globalAPIConfig.permitRootAccess() || !globalActiveCred.Equal(auth.DefaultCredentials) {
		return
	}

	if manager, ok := GlobalKMS.(kms.KeyManager); ok {
		stat, err := GlobalKMS.Stat(GlobalContext)
		if err != nil {

		//
		// GNU tar v1.27.1 applies global headers to subsequent records,
		// but does not do the following properly:
		//	* It does not treat an empty record as deletion.
		//	* It does not use subsequent global headers to update previous ones.
		//
		//	$ gnutar -tvf pax-global-records.tar
		//	---------- 0/0               0 2017-07-13 19:40 global1
		//	---------- 0/0               0 2017-07-13 19:40 file2