Second commit

index.js

@@ -35,18 +35,9 @@
  *   @param {String} tableName - the name of the table
  */
 
-// NEMAZS ANI ZA BOHA 🖕
 const { Pool } = require('pg');
 const { snake2camel } = require('./utils/case');
 
-const _db = new Pool({
-  user: process.env.DB_USER,
-  host: process.env.DB_HOST,
-  database: process.env.DB_USER,
-  password: process.env.DB_PASSWORD,
-  port: process.env.DB_PORT
-});
-
 class DB {
   _db = null;
 
@@ -93,7 +84,7 @@ class DB {
 
   _sendResponse(q, data = []) {
     return new Promise((resolve, reject) => {
-      _db.query(q, data, (err, res) =>
+      this._db.query(q, data, (err, res) =>
         err ? reject(err) : resolve(res.rows.map(record => snake2camel(record)))
       );
     });
@@ -104,7 +95,7 @@ class DB {
   }
 
   tableExists(tableName) {
-    return _db.query(
+    return this._db.query(
       'SELECT EXISTS( SELECT 1 FROM information_schema.tables WHERE table_name=$1 )',
       [tableName],
       (err, res) => (err ? reject(err) : resolve(res.rows[0][0]))

utils/case.js

+const snake2camel = obj => {
+  if (typeof obj === 'string') {
+    return obj
+      .split('_')
+      .map((word, i) =>
+        i === 0
+          ? word.toLowerCase()
+          : word
+              .split('')
+              .map((char, i) =>
+                i === 0 ? char.toUpperCase() : char.toLowerCase()
+              )
+              .join('')
+      )
+      .join('');
+  } else {
+    Object.keys(obj).forEach(key => {
+      const camelCase = snake2camel(key);
+      if (key !== camelCase) {
+        obj[camelCase] = obj[key];
+        delete obj[key];
+      }
+    });
+
+    return obj;
+  }
+};
+
+exports.snake2camel = snake2camel;