diff --git a/index.js b/index.js
index 05477ad..e2e4cf5 100644
--- a/index.js
+++ b/index.js
@@ -167,24 +167,15 @@ server.post('/addmonth_vp', bodyParser.json(), function (req, res) {
     var sql = "";
     var w = "";
     var c = 1;
+    var d = 1;
     var args = [];
     var path = './route_sql/addmonth_vupd.sql';
     
     var callback = function(arg){
         sql = arg
 
-        for (var i in req.body.scenario) {
-            //console.log(i);
-            ///console.log(req.body[i]);
-            if (c > 1) {
-                w = w +
-                    `
-            AND `
-            }
-            w = w + i + " = '" + req.body.scenario[i] + "'";
-            args.push(req.body.scenario[i]);
-            c = c + 1;
-        };
+        ({ c, w, d } = build_where(req, c, w, d, args));
+
         if (c == 1) {
             res.send("no body was sent");
             return;
@@ -215,24 +206,15 @@ server.post('/scale_v', bodyParser.json(), function (req, res) {
     var sql = "";
     var w = "";
     var c = 1;
+    var d = 1;
     var args = [];
     var path = './route_sql/scale_vd.sql';
     
     var callback = function(arg){
         sql = arg
 
-        for (var i in req.body.scenario) {
-            //console.log(i);
-            ///console.log(req.body[i]);
-            if (c > 1) {
-                w = w +
-                    `
-            AND `
-            }
-            w = w + i + " = '" + req.body.scenario[i] + "'";
-            args.push(req.body.scenario[i]);
-            c = c + 1;
-        };
+        ({ c, w, d } = build_where(req, c, w, d, args));
+
         if (c == 1) {
             res.send("no body was sent");
             return;
@@ -261,24 +243,15 @@ server.post('/scale_p', bodyParser.json(), function (req, res) {
     var sql = "";
     var w = "";
     var c = 1;
+    var d = 1;
     var args = [];
     var path = './route_sql/scale_pd.sql';
     
     var callback = function(arg){
         sql = arg
 
-        for (var i in req.body.scenario) {
-            //console.log(i);
-            ///console.log(req.body[i]);
-            if (c > 1) {
-                w = w +
-                    `
-            AND `
-            }
-            w = w + i + " = '" + req.body.scenario[i] + "'";
-            args.push(req.body.scenario[i]);
-            c = c + 1;
-        };
+        ({ c, w, d } = build_where(req, c, w, d, args));
+
         if (c == 1) {
             res.send("no body was sent");
             return;
@@ -307,24 +280,15 @@ server.post('/scale_vp', bodyParser.json(), function (req, res) {
     var sql = "";
     var w = "";
     var c = 1;
+    var d = 1;
     var args = [];
     var path = './route_sql/scale_vupd.sql';
     
     var callback = function(arg){
         sql = arg
 
-        for (var i in req.body.scenario) {
-            //console.log(i);
-            ///console.log(req.body[i]);
-            if (c > 1) {
-                w = w +
-                    `
-            AND `
-            }
-            w = w + i + " = '" + req.body.scenario[i] + "'";
-            args.push(req.body.scenario[i]);
-            c = c + 1;
-        };
+        ({ c, w, d } = build_where(req, c, w, d, args));
+
         if (c == 1) {
             res.send("no body was sent");
             return;