use session storage for client secret during onboarding (fix #14)

apps/dashboard/src/hooks/useClientSecret.ts

@@ -0,0 +1,23 @@
+import { useEffect, useState } from 'react';
+
+export const ONBOARDING_SECRET_KEY = 'onboarding.clientSecret';
+const DEFAULT_SECRET = '[CLIENT_SECRET]';
+
+export function useClientSecret() {
+  const [clientSecret, setClientSecret] = useState<string>(DEFAULT_SECRET);
+
+  useEffect(() => {
+    if (clientSecret && DEFAULT_SECRET !== clientSecret) {
+      sessionStorage.setItem(ONBOARDING_SECRET_KEY, clientSecret);
+    }
+  }, [clientSecret]);
+
+  useEffect(() => {
+    const clientSecret = sessionStorage.getItem(ONBOARDING_SECRET_KEY);
+    if (clientSecret) {
+      setClientSecret(clientSecret);
+    }
+  }, []);
+
+  return [clientSecret, setClientSecret] as const;
+}