db/connect.js

@@ -2,11 +2,11 @@ const mysql = require('mysql');
 const config = require('../config');
 
 const con = mysql.createConnection({
+    user: config.db.user,
+    password: config.db.password,
     host: config.db.host, // 'test-db.verdnatura.es',
     port: config.db.port,
     database: config.db.database,
-    user: config.db.user,
-    password: config.db.password,
     insecureAuth: true
 });
 

db/insertSmartTag.js

@@ -1,18 +1,13 @@
 const con = require('./connect');
 
 function insertSmartTag(smartTagFk, shelving, level) {
-    let sql = `IF EXISTS(SELECT * FROM vn.smartTag WHERE code='${smartTagFk}') 
-                  THEN 
-                    UPDATE vn.smartTag 
-                    SET shelvingFk = '${shelving}', level = ${level}
-                    WHERE code='${smartTagFk}';
-                  ELSE 
-                    INSERT 
-                    INTO vn.smartTag (code, shelvingFk, level) 
-                    VALUES ('${smartTagFk}', '${shelving}', ${level});
-                  END IF;`;
+    let sql = `INSERT INTO vn.smartTag (code, shelvingFk, level) 
+                    VALUES ('${smartTagFk}', '${shelving}', ${level})
+                ON DUPLICATE KEY 
+                    UPDATE shelvingFk = '${shelving}', level = ${level};`;
     con.con.query(sql, function(err, result) {
-        console.log(err);
+        if (err)
+            console.log(err);
     });
 }
 exports.insertSmartTag = insertSmartTag;