A hands-on, beginner-friendly approach to developing complete web applications from the ground up, using JavaScript and its most popular frameworks, including Node.js and React.js.This book is an easy, hands-on introduction to the creation of web applications from the ground up. Each chapter covers a particular part of an application, introducing you to modern techniques and architectural patterns for achieving it - with a practical focus on the most popular tools, libraries, and frameworks used by today's full-stack developers. You'll learn to build an entire application from start to finish, from creating a Node.js server, to developing a front-end interface with React.js components and Next.js pages. You'll then expand your web application by writing REST and GraphQL APIs, implementing middleware, and connecting your application to a MongoDB database on the back end. Finally, you'll learn how to add OAuth authorization to your application, write automated tests with Jest, and deploy your project as microservices using Docker.You'll