PORT = 3001            -> Set the port number you want to listen this server | default is 3001
MYSQL_HOST = localhost -> Set the MySQL HOST | default is "localhost"
MYSQL_PORT = 3306      -> This is PORT number of MySQL server
MYSQL_USER = root      -> This is USER of MySQL server | default is "root"
MYSQL_PWD =            -> This is PWD of MySQL server | default is ""
DB_NAME = symplete     -> This is Database Name | You can change this as you want
TABLE_NAME =categories -> This is Table Name | You can change this as well

cd back-end
npm install
npm start

REACT_APP_SYMPLETE_API = http://localhost:3001

1. cd front-end
2. yarn install
3. yarn start