From d8a4209768066da1dc348a72204ad46e0e3970c8 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Daniel=20Garc=C3=ADa=20Aubert?=
 <danielgarciaaubert@gmail.com>
Date: Mon, 5 Mar 2018 18:13:19 +0100
Subject: [PATCH] Middlewarify analysis-node-status endpoint

---
 lib/cartodb/controllers/layergroup.js | 29 +++++++++++----------------
 1 file changed, 12 insertions(+), 17 deletions(-)

diff --git a/lib/cartodb/controllers/layergroup.js b/lib/cartodb/controllers/layergroup.js
index a7c6ad2d..502ba16b 100644
--- a/lib/cartodb/controllers/layergroup.js
+++ b/lib/cartodb/controllers/layergroup.js
@@ -163,31 +163,26 @@ LayergroupController.prototype.register = function(app) {
         cors(),
         userMiddleware,
         this.prepareContext,
-        this.analysisNodeStatus.bind(this)
+        this.analysisNodeStatus(this.analysisStatusBackend)
     );
 };
 
-LayergroupController.prototype.analysisNodeStatus = function(req, res, next) {
-    var self = this;
-
-    step(
-        function retrieveNodeStatus() {
-            self.analysisStatusBackend.getNodeStatus(res.locals, this);
-        },
-        function finish(err, nodeStatus, stats) {
+LayergroupController.prototype.analysisNodeStatus = function (analysisStatusBackend) {
+    return function analysisNodeStatusMiddleware(req, res, next) {
+        analysisStatusBackend.getNodeStatus(res.locals, (err, nodeStatus, stats) => {
             req.profiler.add(stats || {});
 
             if (err) {
                 err.label = 'GET NODE STATUS';
-                next(err);
-            } else {
-                self.sendResponse(req, res, nodeStatus, 200, {
-                    'Cache-Control': 'public,max-age=5',
-                    'Last-Modified': new Date().toUTCString()
-                });
+                return next(err);
             }
-        }
-    );
+
+            this.sendResponse(req, res, nodeStatus, 200, {
+                'Cache-Control': 'public,max-age=5',
+                'Last-Modified': new Date().toUTCString()
+            });
+        });
+    }.bind(this);
 };
 
 LayergroupController.prototype.getMapStoreMapConfigProvider = function (mapStore, userLimitsApi) {