1. install third part libraries npm install

2. restore the create_schema.sql to mysql db

3. update configs in config/default.conf

paypal node sdk: https://github.com/paypal/PayPal-node-SDK

braintree node package: https://github.com/braintree/braintree_node

braintree credit card validator: https://github.com/braintree/card-validator

express: https://github.com/expressjs/express

express handlebars: https://github.com/ericf/express-handlebars

mysql: https://github.com/mysqljs/mysql

redis: https://github.com/NodeRedis/node_redis

jquery validation

bootstrap

1. remove debug console message
2. call payment gateway for getting transaction if no record found in cache and db
3. hash the check payment param before send to server and query the payment by hashed value