func (sys *NotificationSys) DeleteUser(ctx context.Context, accessKey string) []NotificationPeerErr {
	ng := WithNPeers(len(sys.peerClients)).WithRetries(1)
	for idx, client := range sys.peerClients {
		ng.Go(ctx, func() error {
			if client == nil {
				return errPeerNotReachable
			}
			return client.DeleteUser(ctx, accessKey)
		}, idx, *client.host)
	}
	return ng.Wait()
}

		flag.PrintDefaults()
		return
	}

	// The credentials package in minio-go provides an interface to call the
	// STS API.

	// Initialize credential options
	var stsOpts cr.STSAssumeRoleOptions
	stsOpts.AccessKey = minioUsername
	stsOpts.SecretKey = minioPassword

	if sessionPolicyFile != "" {
		var policy string
		if f, err := os.Open(sessionPolicyFile); err != nil {
			log.Fatalf("Unable to open session policy file: %v", err)

```
go run client-grants.go -cid PoEgXP6uVO45IsENRngDXj5Au5Ya -csec eKsw6z8CtOJVBtrOWvhRWL4TUCga

##### Credentials
{
 "accessKey": "IRBLVDGN5QGMDCMO1X8V",
 "secretKey": "KzS3UZKE7xqNdtRbKyfcWgxBS6P1G4kwZn4DXKuY",
 "expiration": "2018-08-21T15:49:38-07:00",

		iamOS.deleteIAMConfig(ctx, getUserIdentityPath(user, userType))
		iamOS.deleteIAMConfig(ctx, getMappedPolicyPath(user, userType, false))
		return u, errNoSuchUser
	}

	if u.Credentials.AccessKey == "" {
		u.Credentials.AccessKey = user
	}

	if u.Credentials.SessionToken != "" {
		jwtClaims, err := extractJWTClaims(u)
		if err != nil {
			if u.Credentials.IsTemp() {

	echo "Initializing environment"
	mkdir -p "$WORK_DIR"
	mkdir -p "$MINIO_CONFIG_DIR"

	## version is purposefully set to '3' for minio to migrate configuration file
	echo '{"version": "3", "credential": {"accessKey": "minio", "secretKey": "minio123"}, "region": "us-east-1"}' >"$MINIO_CONFIG_DIR/config.json"

	if [ ! -f /tmp/mc ]; then
		wget --quiet -O /tmp/mc https://dl.minio.io/client/mc/release/linux-amd64/mc &&
			chmod +x /tmp/mc

	}

	u, err := url.Parse(r.Source.Endpoint)
	if err != nil {
		return err
	}

	cred := r.Source.Creds

	c, err := minio.New(u.Host, &minio.Options{
		Creds:        credentials.NewStaticV4(cred.AccessKey, cred.SecretKey, cred.SessionToken),
		Secure:       u.Scheme == "https",
		Transport:    getRemoteInstanceTransport(),
		BucketLookup: lookupStyle(r.Source.Path),
	})
	if err != nil {
		return err
	}

	echo "Initializing environment"
	mkdir -p "$WORK_DIR"
	mkdir -p "$MINIO_CONFIG_DIR"

	## version is purposefully set to '3' for minio to migrate configuration file
	echo '{"version": "3", "credential": {"accessKey": "minio", "secretKey": "minio123"}, "region": "us-east-1"}' >"$MINIO_CONFIG_DIR/config.json"

	if [ ! -f /tmp/mc ]; then
		wget --quiet -O /tmp/mc https://dl.minio.io/client/mc/release/linux-amd64/mc &&
			chmod +x /tmp/mc

	j := jwt.NewWithClaims(jwt.SigningMethodHS512, claims)
	tk, _ := j.SignedString([]byte("HelloSecret"))
	return tk
}

func standardClaimsToken(claims *StandardClaims) string {
	claims.AccessKey = "test"
	claims.Subject = "test"
	j := jwt.NewWithClaims(jwt.SigningMethodHS512, claims)
	tk, _ := j.SignedString([]byte("HelloSecret"))
	return tk
}

func TestParserParse(t *testing.T) {

```
$ go run client-grants.go -cid PoEgXP6uVO45IsENRngDXj5Au5Ya -csec eKsw6z8CtOJVBtrOWvhRWL4TUCga

##### Credentials
{
 "accessKey": "NUIBORZYTV2HG2BMRSXR",
 "secretKey": "qQlP5O7CFPc5m5IXf1vYhuVTFj7BRVJqh0FqZ86S",
 "expiration": "2018-08-21T17:10:29-07:00",

			req.Header.Set("X-Amz-Date", time.Now().UTC().Format("20060102T150405Z"))
			sum := sha256.Sum256(body)
			req.Header.Set("X-Amz-Content-Sha256", hex.EncodeToString(sum[:]))
			req = signer.SignV4(*req, credentials.AccessKey, credentials.SecretKey, "", "us-east-1")

			rec := httptest.NewRecorder()
			api := objectAPIHandlers{
				ObjectAPI: func() ObjectLayer {
					return obj
				},
			}