The returned credentials expiry after a certain period of time that can be configured via `&DurationSeconds=3600`. By default, the STS credentials are valid for 1 hour. The minimum expiration allowed is 15 minutes.

		return
	}
	remote := m.targets[cReq.Host]
	if remote == nil {
		writeErr(fmt.Errorf("unknown incoming host: %v", cReq.Host))
		return
	}
	if time.Since(cReq.Time).Abs() > 5*time.Minute {
		writeErr(fmt.Errorf("time difference too large between servers: %v", time.Since(cReq.Time).Abs()))
		return
	}
	if err := m.authToken(cReq.Token); err != nil {
		writeErr(fmt.Errorf("auth token: %w", err))

    protected long cacheDuration = 10; // min

    @Resource
    public void init() {
        xpathAPICache =
                CacheBuilder.newBuilder().expireAfterAccess(cacheDuration, TimeUnit.MINUTES).build(new CacheLoader<String, XPathAPI>() {
                    @Override
                    public XPathAPI load(final String key) {
                        if (logger.isDebugEnabled()) {

        if (logger.isDebugEnabled()) {
            logger.debug("Initialize {}", this.getClass().getSimpleName());
        }
        crawlingConfigCache = CacheBuilder.newBuilder().maximumSize(100).expireAfterWrite(10, TimeUnit.MINUTES).build();
    }

    public ConfigType getConfigType(final String configId) {
        if (configId == null || configId.length() < 2) {
            return null;
        }

### Just Modern Python

It's all based on standard **Python type** declarations (thanks to Pydantic). No new syntax to learn. Just standard modern Python.

If you need a 2 minute refresher of how to use Python types (even if you don't use FastAPI), check the short tutorial: [Python Types](python-types.md){.internal-link target=_blank}.

You write standard Python with types:

```Python

          "interval": "1m",
          "intervalFactor": 2,
          "legendFormat": "{{endpoint}},{{server}}",
          "refId": "A"
        }
      ],
      "title": "Last Minute Failed Data",
      "type": "timeseries"
    },
    {
      "datasource": {
        "type": "prometheus",
        "uid": "${DS_PROMETHEUS}"
      },
      "fieldConfig": {

			return s.NewHTTPTransportWithTimeout(1 * time.Minute)
		}
		return transport
	}

	return globalRemoteTargetTransport
}

// NewHTTPTransport returns a new http configuration
// used while communicating with the cloud backends.
func NewHTTPTransport() *http.Transport {
	return NewHTTPTransportWithTimeout(1 * time.Minute)
}

// Default values for dial timeout

when a certificate is near expiration (configurable by `SECRET_GRACE_PERIOD_RATIO`, defaulting to half of the expiration plus or minus a few minutes to stagger renewals). If the SDS server
is still interested in this certificate (ie, Envoy is still connected and requesting the certificate), the SDS server will send another request

			}

			certificate, err := certs.NewCertificate(env.Get(EnvKESClientCert, ""), env.Get(EnvKESClientKey, ""), loadX509KeyPair)
			if err != nil {
				return nil, err
			}
			certificate.Watch(ctx, 15*time.Minute, syscall.SIGHUP)

			conf.GetClientCertificate = func(*tls.CertificateRequestInfo) (*tls.Certificate, error) {
				cert := certificate.Get()
				return &cert, nil
			}
		}

		var caDir string

		Tiers:       make(map[string]madmin.TierConfig),
	}
}

func (config *TierConfigMgr) refreshTierConfig(ctx context.Context, objAPI ObjectLayer) {
	const tierCfgRefresh = 15 * time.Minute
	r := rand.New(rand.NewSource(time.Now().UnixNano()))
	randInterval := func() time.Duration {
		return time.Duration(r.Float64() * 5 * float64(time.Second))
	}