made notification label optional

app/models/user-notification.js

@@ -12,7 +12,7 @@ const UserNotificationSchema = new Schema({
   user: { type: Schema.ObjectId, required: true, index: 1, ref: 'User' },
   status: { type: String, enum: ['new', 'seen'], default: 'new', required: true },
   action: { type: String, required: true, lowercase: true },
-  label: { type: String, required: true },
+  label: { type: String },
   content: { type: String },
   href: { type: String },
   source: {

app/services/user-notification.js

@@ -44,9 +44,6 @@ class UserNotificationService extends SiteService {
     if (!notificationDefinition.action) {
       throw new SiteError(406, 'Missing action');
     }
-    if (!notificationDefinition.label) {
-      throw new SiteError(406, 'Missing label');
-    }
     if (!notificationDefinition.content) {
       throw new SiteError(406, 'Missing content');
     }
@@ -128,7 +125,9 @@ class UserNotificationService extends SiteService {
     notification.status = 'new';
 
     notification.action = striptags(notificationDefinition.action.trim().toLowerCase());
+    if (notificationDefinition.label) {
       notification.label = striptags(notificationDefinition.label.trim());
+    }
     notification.content = striptags(notificationDefinition.content.trim());
     notification.href = striptags(notificationDefinition.href.trim());