abanobmikaeel

const { Client } = require('pg');
const AmazonCognitoIdentity = require('amazon-cognito-identity-js');

exports.handler = async (event) => {
    const { username, password } = JSON.parse(event.body);

    // Validate credentials against PostgreSQL database
    const postgresClient = new Client({
        host: process.env.RDS_HOST,
        user: process.env.RDS_USER,