B2B-88: add starter kit structure and elements

app/api/db/webhook/route.ts

@@ -0,0 +1,43 @@
+import { getDatabaseWebhookHandlerService } from '@kit/database-webhooks';
+import { getServerMonitoringService } from '@kit/monitoring/server';
+import { enhanceRouteHandler } from '@kit/next/routes';
+
+/**
+ * @name POST
+ * @description POST handler for the webhook route that handles the webhook event
+ */
+export const POST = enhanceRouteHandler(
+  async ({ request }) => {
+    const service = getDatabaseWebhookHandlerService();
+
+    try {
+      const signature = request.headers.get('X-Supabase-Event-Signature');
+
+      if (!signature) {
+        return new Response('Missing signature', { status: 400 });
+      }
+
+      const body = await request.clone().json();
+
+      // handle the webhook event
+      await service.handleWebhook({
+        body,
+        signature,
+      });
+
+      // return a successful response
+      return new Response(null, { status: 200 });
+    } catch (error) {
+      const service = await getServerMonitoringService();
+
+      await service.ready();
+      await service.captureException(error as Error);
+
+      // return an error response
+      return new Response(null, { status: 500 });
+    }
+  },
+  {
+    auth: false,
+  },
+);