diff --git a/src/routes/apiRoutes.js b/src/routes/apiRoutes.js
index 3cbe66e..a8e2fb2 100644
--- a/src/routes/apiRoutes.js
+++ b/src/routes/apiRoutes.js
@@ -54,13 +54,7 @@ router.post('/invited-npub', async (req, res) => {
         return res.status(404).render('error', { message: 'Invite not found' });
     }
 
-    const isInviteSpent = await InvitedNpub.findOne({
-        where: {
-            app_invite_uuid: inviteUuid
-        }
-    })
-
-    if (isInviteSpent) {
+    if (appInviteServices.isAppInviteSpent(inviteUuid)) {
         return res.status(410).json({ error: 'Invite has already been used.' });
     }
 
diff --git a/src/routes/webRoutes.js b/src/routes/webRoutes.js
index eb94162..4da261c 100644
--- a/src/routes/webRoutes.js
+++ b/src/routes/webRoutes.js
@@ -20,15 +20,9 @@ router.get('/invite/:inviteUuid', async (req, res) => {
             return res.status(404).render('error', { message: 'Invite not found' });
         }
 
-        const invite = appInviteServices.getInvite(inviteUuid);
+        const invite = await appInviteServices.getAppInvite(inviteUuid);
 
-        const isInviteSpent = await InvitedNpub.findOne({
-            where: {
-                app_invite_uuid: inviteUuid
-            }
-        })
-
-        if (isInviteSpent) {
+        if (await appInviteServices.isAppInviteSpent(inviteUuid)) {
             return res.render('invite_spent', { invite })
         }
 
diff --git a/src/services/appInviteServices.js b/src/services/appInviteServices.js
index d92312d..e7fb2de 100644
--- a/src/services/appInviteServices.js
+++ b/src/services/appInviteServices.js
@@ -1,4 +1,5 @@
 const AppInvite = require('../models/AppInvite');
+const InvitedNpub = require('../models/InvitedNpub');
 
 async function appInviteExists(inviteUuid) {
     const invite = await AppInvite.findOne({ where: { uuid: inviteUuid } });
@@ -8,11 +9,25 @@ async function appInviteExists(inviteUuid) {
     return false;
 }
 
-async function getInvite(inviteUuid) {
+async function getAppInvite(inviteUuid) {
     const invite = await AppInvite.findOne({ where: { uuid: inviteUuid } });
     return invite;
 }
 
+async function isAppInviteSpent(inviteUuid) {
+    const invitedNpub = await InvitedNpub.findOne({
+        where: {
+            app_invite_uuid: inviteUuid
+        }
+    })
+
+    if (invitedNpub) {
+        return true;
+    }
+    return false;
+}
+
 
 exports.appInviteExists = appInviteExists;
-exports.getInvite = getInvite;
+exports.getAppInvite = getAppInvite;
+exports.isAppInviteSpent = isAppInviteSpent;