}
```

These credentials can now be used to perform MinIO API operations, these credentials automatically expire in 1hr. To understand more about credential expiry duration and client grants STS API read further [here](https://github.com/minio/minio/blob/master/docs/sts/client-grants.md).

## Explore Further

    server.enqueue(
      MockResponse(code = 401),
    )
    server.enqueue(MockResponse())
    val credential = basic("jesse", "secret")
    client =
      client
        .newBuilder()
        .authenticator(RecordingOkAuthenticator(credential, null))
        .build()
    val response =
      getResponse(
        Request(
          url = server.url("/"),

	LastHour    ReplicationLastHour `json:"lastHour"`
	SinceUptime RStat               `json:"sinceUptime"`
	LastMinute  ReplicationLastMinute
	// Error counts
	ErrCounts map[string]int `json:"errCounts"` // Count of credential errors
}

func (rt *RTimedMetrics) String() string {
	s := rt.toMetric()
	return fmt.Sprintf("Errors in LastMinute: %v, LastHour: %v, SinceUptime: %v", s.LastMinute.Count, s.LastHour.Count, s.Totals.Count)
}

   */
  @Test
  fun duplexWithAuthChallenge() {
    enableProtocol(Protocol.HTTP_2)
    val credential = basic("jesse", "secret")
    client =
      client
        .newBuilder()
        .authenticator(RecordingOkAuthenticator(credential, null))
        .build()
    val body1 =
      MockSocketHandler()
        .sendResponse("please authenticate!\n")

    private String user = null;
    /** The Kerberos realm */
    private String realm = null;
    /** The service principal name */
    private String service = DEFAULT_SERVICE;
    /** The user credential lifetime */
    private int userLifetime = GSSCredential.DEFAULT_LIFETIME;
    /** The security context lifetime */
    private int contextLifetime = GSSContext.DEFAULT_LIFETIME;

}

func validateAdminSignature(ctx context.Context, r *http.Request, region string) (auth.Credentials, bool, APIErrorCode) {
	var cred auth.Credentials
	var owner bool
	s3Err := ErrAccessDenied
	if _, ok := r.Header[xhttp.AmzContentSha256]; ok &&
		getRequestAuthType(r) == authTypeSigned {
		// Get credential information from the request.
		cred, owner, s3Err = getReqAccessKeyV4(r, region, serviceS3)

	"$expires":                 true,
	"$key":                     true,
	"$success_action_redirect": true,
	"$redirect":                true,
	"$success_action_status":   true,
	"$x-amz-algorithm":         false,
	"$x-amz-credential":        false,
	"$x-amz-date":              false,
	"$tagging":                 false,
}

// Add policy conditionals.
const (
	policyCondEqual         = "eq"
	policyCondStartsWith    = "starts-with"

        }

        return new String(out, 0, j);
    }

    /**
     * Check if the given mechanism is preferred for this credential
     *
     * @param mechanism the mechanism to check
     * @return whether the given mechanism is the preferred one for this credential
     */
    public boolean isPreferredMech(ASN1ObjectIdentifier mechanism) {
        return NtlmContext.NTLMSSP_OID.equals(mechanism);
    }

		isDerived := false
		if v.Credentials.IsServiceAccount() || v.Credentials.IsTemp() {
			isDerived = true
		}

		if !isDerived && v.Credentials.AccessKey == accessKey {
			userExists = true
		} else if isDerived && v.Credentials.ParentUser == accessKey {
			userExists = true
			if v.Credentials.IsTemp() {
				// Hide secret key & session key here
				v.Credentials.SecretKey = ""

              .endpoint("https://play.min.io")
              .credentials("Q3AM3UQ867SPQQA43P2F", "zuf+tfteSlswRu7BJ86wekitnifILbZam1KYY3TG")
              .build();

      /* Amazon S3: */
      // MinioClient minioClient =
      //     MinioClient.builder()
      //         .endpoint("https://s3.amazonaws.com")
      //         .credentials("YOUR-ACCESSKEY", "YOUR-SECRETACCESSKEY")
      //         .build();