Remove finish function and respond in the main middleware

lib/cartodb/controllers/named_maps_admin.js

@@ -80,9 +80,12 @@ NamedMapsAdminController.prototype.create = function(req, res, next) {
         },
         function prepareResponse(err, tpl_id){
             assert.ifError(err);
-            return { template_id: tpl_id };
-        },
-        finishFn(self, req, res, 'POST TEMPLATE', null, next)
+
+            res.status(200);
+
+            const method = req.query.callback ? 'jsonp' : 'json';
+            res[method]({ template_id: tpl_id });
+        }
     );
 };
 
@@ -102,9 +105,11 @@ NamedMapsAdminController.prototype.update = function(req, res, next) {
         function prepareResponse(err){
             assert.ifError(err);
 
-            return { template_id: tpl_id };
-        },
-        finishFn(self, req, res, 'PUT TEMPLATE', null, next)
+            res.status(200);
+
+            const method = req.query.callback ? 'jsonp' : 'json';
+            res[method]({ template_id: tpl_id });
+        }
     );
 };
 
@@ -123,16 +128,19 @@ NamedMapsAdminController.prototype.retrieve = function(req, res, next) {
         function prepareResponse(err, tpl_val) {
             assert.ifError(err);
             if ( ! tpl_val ) {
-                err = new Error("Cannot find template '" + tpl_id + "' of user '" + cdbuser + "'");
-                err.http_status = 404;
-                throw err;
+                const error = new Error(`Cannot find template '${tpl_id}' of user '${cdbuser}'`);
+                error.http_status = 404;
+                return next(error);
             }
             // auth_id was added by ourselves,
             // so we remove it before returning to the user
             delete tpl_val.auth_id;
-            return { template: tpl_val };
-        },
-        finishFn(self, req, res, 'GET TEMPLATE', null, next)
+
+            res.status(200);
+
+            const method = req.query.callback ? 'jsonp' : 'json';
+            res[method]({ template: tpl_val });
+        }
     );
 };
 
@@ -150,9 +158,12 @@ NamedMapsAdminController.prototype.destroy = function(req, res, next) {
         },
         function prepareResponse(err/*, tpl_val*/){
             assert.ifError(err);
-            return '';
-        },
-        finishFn(self, req, res, 'DELETE TEMPLATE', 204, next)
+
+            res.status(204);
+
+            const method = req.query.callback ? 'jsonp' : 'json';
+            res[method]('');
+        }
     );
 };
 
@@ -168,9 +179,12 @@ NamedMapsAdminController.prototype.list = function(req, res, next) {
         },
         function prepareResponse(err, tpl_ids){
             assert.ifError(err);
-            return { template_ids: tpl_ids };
-        },
-        finishFn(self, req, res, 'GET TEMPLATE LIST', null, next)
+
+            res.status(200);
+
+            const method = req.query.callback ? 'jsonp' : 'json';
+            res[method]({ template_ids: tpl_ids });
+        }
     );
 };
 
@@ -205,20 +219,3 @@ NamedMapsAdminController.prototype.checkContentType = function (action, label) {
         next();
     };
 };
-
-function finishFn(controller, req, res, description, status, next) {
-    return function finish(err, body){
-        if (err) {
-            err.label = description;
-            next(err);
-        } else {
-            res.status(status || 200);
-
-            if (req.query && req.query.callback) {
-                res.jsonp(body);
-            } else {
-                res.json(body);
-            }
-        }
-    };
-}