refactoring 1. step

src/config/database.js

@@ -0,0 +1,11 @@
+const { Pool } = require('pg');
+
+const pool = new Pool({
+    user: process.env.DB_USER || 'postgres',
+    host: process.env.DB_HOST || 'localhost',
+    database: process.env.DB_NAME || 'quotes_db',
+    password: process.env.DB_PASSWORD || 'postgres',
+    port: process.env.DB_PORT || 5432,
+});
+
+module.exports = { pool };

src/config/qbo.js

@@ -0,0 +1,20 @@
+const OAuthClient = require('intuit-oauth');
+const { getOAuthClient: getClient, saveTokens, resetOAuthClient } = require('../../qbo_helper');
+
+function getOAuthClient() {
+    return getClient();
+}
+
+function getQboBaseUrl() {
+    return process.env.QBO_ENVIRONMENT === 'production'
+        ? 'https://quickbooks.api.intuit.com'
+        : 'https://sandbox-quickbooks.api.intuit.com';
+}
+
+module.exports = {
+    OAuthClient,
+    getOAuthClient,
+    getQboBaseUrl,
+    saveTokens,
+    resetOAuthClient
+};