✨ add healthcheck endpoint

Author: jheubuch

WebhookRelayService/Controllers/HealthCheckController.cs

@@ -0,0 +1,22 @@
+using Microsoft.AspNetCore.Mvc;
+using WebhookRelayService.Services;
+
+namespace WebhookRelayService.Controllers
+{
+    [Route("api/[controller]")]
+    public class HealthCheckController : ControllerBase
+    {
+        private IWebhookUserService _webhookUserService;
+
+        public HealthCheckController(IWebhookUserService webhookUserService)
+        {
+            _webhookUserService = webhookUserService;
+        }
+
+        [HttpGet]
+        public async Task<int> HealthCheck()
+        {
+            return await _webhookUserService.GetRegisteredUsersCount();
+        }
+    }
+}

WebhookRelayService/Repositories/WebhookUserRepository.cs

@@ -10,6 +10,7 @@ public interface IWebhookUserRepository
         public Task<WebhookUser> GetById(Guid id);
         public Task<WebhookUser?> GetByWebhookId(int id);
         public Task Delete(WebhookUser webhookUser);
+        public Task<int> Count();
     }
 
     public class WebhookUserRepository : IWebhookUserRepository
@@ -50,5 +51,10 @@ public async Task Delete(WebhookUser webhookUser)
             _context.WebhookUsers.Remove(webhookUser);
             await _context.SaveChangesAsync();
         }
+
+        public async Task<int> Count()
+        {
+            return await _context.WebhookUsers.CountAsync();
+        }
     }
 }

WebhookRelayService/Services/WebhookUserService.cs

@@ -8,6 +8,7 @@ public interface IWebhookUserService
     {
         public Task<Guid> Create(WebhookUserCreateDTO dto);
         public Task Delete(Guid id);
+        public Task<int> GetRegisteredUsersCount();
     }
 
     public class WebhookUserService : IWebhookUserService
@@ -43,6 +44,11 @@ public async Task Delete(Guid id)
             await _repository.Delete(user);
         }
 
+        public async Task<int> GetRegisteredUsersCount()
+        {
+            return await _repository.Count();
+        }
+
         private async Task<bool> CheckEndpoint(string endpoint)
         {
             var httpResponse = await _httpService.SendGet(endpoint);