React POS App – MySQL Database Setup & Overview (Part 3) скачать в хорошем качестве

React POS App – MySQL Database Setup & Overview (Part 3)

In this video, we continue building our React POS (Point of Sale) Application by setting up and explaining the MySQL database structure and connecting it with the Node.js backend. This is Part 3 of the React POS tutorial series. We start with an overview of the POS database design, where we explain all the core tables used in the application, including category, product, user, order, and order item. You will understand how these tables are related to each other using foreign keys and how this structure helps manage products, users, and orders efficiently in a real-world POS system. Next, we move on to creating the database configuration file using a .env file. This allows us to securely store MySQL credentials such as host, username, password, and database name without exposing sensitive information in the source code. After that, we create a reusable database connection file using mysql2 with promise support. You will learn how to use environment variables, check configuration file existence, and create a MySQL connection pool for better performance and scalability. We also explain important pool options like connection limits, wait behavior, and queue limits. By the end of this video, your Node.js backend will be fully connected to the MySQL database and ready for further API development. In the next part, we will start creating the React Login Page component. 👉 Watch till the end and subscribe to follow the complete React POS Application series. For Source Code - https://www.webslesson.info/2026/01/r... #ReactPOS #ReactNode #FullStackReact #NodeJS #ReactTutorial