<ul data-eligibleForWebStory="true"><li>A Health Check is an indicator of service availability in web applications, showing if the application is Healthy, Degraded, or Unhealthy.</li><li>It is often used in Continuous Deployment pipelines to monitor service status and restart if necessary.</li><li>To set up a basic health check in a .NET application, you need to register a health check and add a middleware with a defined path.</li><li>By default, the /health endpoint will return 200 OK with 'Healthy' as long as the application starts.</li><li>Custom health checks can be implemented by using the IHealthCheck interface and then registering them accordingly.</li><li>There are various extensions available for databases, message brokers, system info checks, and UI tools for monitoring.</li><li>Practical uses of health checks include UI dashboards, Kubernetes/Docker Health Probes, and integration with monitoring tools like Application Insights or Grafana.</li><li>Implementing health checks helps ensure service availability and prompt issue detection.</li></ul>

Health Check setup for .NET application

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