* It can do something to that **response** or run any needed code.
* Then it returns the **response**.

/// note | "Technical Details"

If you have dependencies with `yield`, the exit code will run *after* the middleware.

If there were any background tasks (documented later), they will run *after* all the middleware.

///

## Create a middleware

		defer ticker.Stop()
		var exit bool
		for !exit {
			select {
			case <-ticker.C:
			case <-ctx.Done():
				exit = true
			}
			metaMu.Lock()
			meta := *mc.meta
			meta, err = o.updateMetacacheListing(meta, rpc)
			if err == nil && time.Since(meta.lastHandout) > metacacheMaxClientWait {
				cancel()
				exit = true
				meta.status = scanStateError

actual_checksum=$(./mc cat minio3/testbucket/lrgfile | md5sum)

if [ "${expected_checksum}" != "${actual_checksum}" ]; then
	echo "unexpected object checksum, expected: ${expected_checksum} got: ${actual_checksum}"
	exit
fi

# Compare the difference of the list of disks and their location, with the below expected output

        --add Microsoft.VisualStudio.Workload.NativeDesktop \
        --add Microsoft.VisualStudio.Component.VC.14.39.17.9.x86.64 \
        --add Microsoft.VisualStudio.Component.Windows11SDK.22621 \
 || IF "%ERRORLEVEL%"=="3010" EXIT 0

SHELL ["powershell.exe", "-ExecutionPolicy", "Bypass", "-Command", \
       "$ErrorActionPreference='Stop'; $ProgressPreference='SilentlyContinue'; $VerbosePreference = 'Continue';"]

# Install Clang.

    * Dit alles werkt ook voor diep geneste JSON objecten.
* Converteer automatisch van en naar JSON.
* Documenteer alles met OpenAPI, dat gebruikt kan worden door:
    * Interactieve documentatiesystemen.
    * Automatische client code generatie systemen, voor vele talen.
* Biedt 2 interactieve documentatie-webinterfaces aan.

---

FLAGS:
  {{range .VisibleFlags}}{{.}}
  {{end}}
`
	app.Flags = []cli.Flag{}
	app.Action = func(c *cli.Context) error {
		if !c.Args().Present() {
			cli.ShowAppHelpAndExit(c, 1) // last argument is exit code
		}

		ht := make(map[string]map[string]interface{})
		file := c.Args().Get(0)
		if strings.HasSuffix(file, ".zip") {
			var sz int64
			f, err := os.Open(file)
			if err != nil {
				return err
			}

		cmd := exec.Command(os.Args[0], os.Args[1:]...)
		cmd.Stdout = os.Stdout
		cmd.Stderr = os.Stderr
		cmd.Stdin = os.Stdin
		cmd.Env = os.Environ()
		err := cmd.Run()
		if err == nil {
			os.Exit(0)
		}
		return err
	}

	// Use the original binary location. This works with symlinks such that if
	// the file it points to has been changed we will use the updated symlink.
	argv0, err := exec.LookPath(os.Args[0])

; STATUS=$? ; until [ $STATUS = 0 ] do ATTEMPTS=`expr $ATTEMPTS + 1` ; echo \"Failed attempts: $ATTEMPTS\" ; if [ $ATTEMPTS -gt $LIMIT ]; then exit 1 ; fi ; sleep 2 ; # 1 second intervals between attempts $MC_COMMAND ; STATUS=$? ; done ; set -e ; # reset `e` as active return 0 } # checkBucketExists ($bucket) # Check if the bucket exists, by using the exit code of `mc ls` checkBucketExists() { BUCKET=$1 CMD=$(${MC} ls myminio/$BUCKET > /dev/null 2>&1) return $? } # createBucket ($bucket, $policy,...

; STATUS=$? ; until [ $STATUS = 0 ] do ATTEMPTS=`expr $ATTEMPTS + 1` ; echo \"Failed attempts: $ATTEMPTS\" ; if [ $ATTEMPTS -gt $LIMIT ]; then exit 1 ; fi ; sleep 2 ; # 1 second intervals between attempts $MC_COMMAND ; STATUS=$? ; done ; set -e ; # reset `e` as active return 0 } # checkBucketExists ($bucket) # Check if the bucket exists, by using the exit code of `mc ls` checkBucketExists() { BUCKET=$1 CMD=$(${MC} ls myminio/$BUCKET > /dev/null 2>&1) return $? } # createBucket ($bucket, $policy,...

; STATUS=$? ; until [ $STATUS = 0 ] do ATTEMPTS=`expr $ATTEMPTS + 1` ; echo \"Failed attempts: $ATTEMPTS\" ; if [ $ATTEMPTS -gt $LIMIT ]; then exit 1 ; fi ; sleep 2 ; # 1 second intervals between attempts $MC_COMMAND ; STATUS=$? ; done ; set -e ; # reset `e` as active return 0 } # checkBucketExists ($bucket) # Check if the bucket exists, by using the exit code of `mc ls` checkBucketExists() { BUCKET=$1 CMD=$(${MC} ls myminio/$BUCKET > /dev/null 2>&1) return $? } # createBucket ($bucket, $policy,...