Create HealthController.cs

API/ROLAC.API/Controllers/HealthController.cs

@@ -0,0 +1,29 @@
+using Microsoft.AspNetCore.Authorization;
+using Microsoft.AspNetCore.Mvc;
+using ROLAC.API.Data;
+
+namespace ROLAC.API.Controllers;
+
+[ApiController]
+[Route("api/health")]
+[AllowAnonymous]
+public class HealthController : ControllerBase
+{
+    private readonly AppDbContext _db;
+    public HealthController(AppDbContext db) => _db = db;
+
+    [HttpGet]
+    public async Task<IActionResult> Get(CancellationToken cancellationToken)
+    {
+        var canConnectToDatabase = await _db.Database.CanConnectAsync(cancellationToken);
+
+        var payload = new
+        {
+            status   = canConnectToDatabase ? "healthy" : "degraded",
+            database = canConnectToDatabase ? "up" : "down",
+            time     = DateTimeOffset.UtcNow
+        };
+
+        return canConnectToDatabase ? Ok(payload) : StatusCode(503, payload);
+    }
+}