Discover how to implement Server-Sent Events (SSE) with NestJS for efficient real-time web applications. Learn the benefits of SSE, its one-way communication model, and how to correctly manage headers and data streams in NestJS.
Often, applications use environmental variables to store secrets or values that vary depending on the system where the application runs. These values are typically not checked into the git repositories, and you may need to set them at runtime.
Testing is one of the most important and a major part of any application development, NestJS by default uses Jest & Supertest for making unit tests & end-to-end testing jobs easier.