Building web Applications with Spring boot and reactjs

I am new to programming and learning Full-stack web development with Springboot backend and React as a front-end framework. I will be Building small Billing applications for business to automate their manual billing and help them comply with GST in India. I will plan to document my journey of building this web app and eventually opensource entire projects so others can learn and make use of It.

I am looking for your comments and suggestions to improve the app and also learn things from you. Stay put for updates...