Frameworks: Express, FastAPI, React and Next.js

Build step four: join the interface, the server and the data into one product. You start with what a framework is and why we use one, then the kinds of frameworks (front end, server, full stack) and how to choose, then you build with the tools companies use: Express and FastAPI for the server, then React for the interface, then Next.js for an interface with a server.

OverviewBuild step four: join the interface, the server and the data into one product. You start with what a framework is and why we use one, then the kinds of frameworks (front end, server, full stack) and how to choose, then you build with the tools companies use: Express and FastAPI for the server, then React for the interface, then Next.js for an interface with a server.
What is a framework? And why not start from scratchBefore Express and React: what you repeat in every project, and how a framework writes it once and leaves you only your app's own logic. You build a fifteen-line framework, learn the difference between a library and a framework, what you gain and what you pay, and when you need no framework at all.