JavaScript has now become a universal development language. Whilst offering great benefits, the complexity of the entire ecosystem can be overwhelming. In this course, we will take a look at the libraries in JavaScript that aid in building applications that have a microservices-based architecture, have features like audio and video calling, real-time score updates, multi-faceted search options and more. We will not only look at building these applications but also explore a number of industry-standard best practices. With coverage of both server-side and front-end development, this course will provide attendees with the skills required to develop cutting-edge web applications that stand the test of time. The code bundle for this course is available at https://github.com/PacktPublishing/Beginning-Modern-JavaScript-Development-with-Microservices-WebRTC-and-React