From 2e2e4e8314c102b3ebc38aa2f71a6e886b0be86d Mon Sep 17 00:00:00 2001
From: davidemarcoli <davide@marcoli.ch>
Date: Fri, 29 Nov 2024 15:24:15 +0100
Subject: [PATCH] fix: add health check for backend connection in middleware

---
 src/hooks.server.ts | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/src/hooks.server.ts b/src/hooks.server.ts
index 6dd0aaf..ca6e7a5 100644
--- a/src/hooks.server.ts
+++ b/src/hooks.server.ts
@@ -26,6 +26,24 @@ const configureClientMiddleware: Handle = async ({ event, resolve }) => {
 		if (!event.locals.backendUrl || !event.locals.apiKey) {
 			throw redirect(307, '/connect');
 		}
+
+		let hasConnection;
+
+		try {
+			await fetch(event.locals.backendUrl + '/api/v1/health')
+				.then(() => {
+					hasConnection = true;
+				})
+				.catch(() => {
+					hasConnection = false;
+				});
+		} catch {
+			hasConnection = false;
+		}
+
+		if (!hasConnection) {
+			throw redirect(307, '/connect');
+		}
 	}
 
 	return resolve(event);