Fixed webhook payload

no issue

- async code was not handled

core/server/services/webhooks/payload.js

@@ -1,11 +1,17 @@
 const serialize = require('./serialize');
+const Promise = require('bluebird');
 
 module.exports = (event, model) => {
     const payload = {};
 
     if (model) {
-        Object.assign(payload, serialize(event, model));
+        return serialize(event, model)
-    }
+            .then((result) => {
+                Object.assign(payload, result);
 
                 return payload;
+            });
+    }
+
+    return Promise.resolve(payload);
 };

core/server/services/webhooks/serialize.js

@@ -44,7 +44,7 @@ module.exports = (event, model) => {
         });
     }
 
-    sequence(ops)
+    return sequence(ops)
         .then((results) => {
             const current = results[0];
             const previous = results[1];

core/server/services/webhooks/trigger.js

@@ -68,7 +68,10 @@ module.exports = (event, model) => {
             debug(`${webhooks.models.length} webhooks found for ${event}.`);
 
             _.each(webhooks.models, (webhook) => {
-                const reqPayload = JSON.stringify(payload(webhook.get('event'), model));
+                payload(webhook.get('event'), model)
+                    .then((payload) => {
+                        console.log(payload);
+                        const reqPayload = JSON.stringify(payload);
                         const url = webhook.get('target_url');
                         const opts = {
                             body: reqPayload,
@@ -87,4 +90,5 @@ module.exports = (event, model) => {
                             .catch(response.onError(webhook));
                     });
             });
+        });
 };