In this post I’ll argue that NestJs in its default settings isn’t actually type-safe which in my opinion makes it a bad Typescript backend framework. I’d like to preface this rant with big respect to maintainers of both NestJS and class-validator library. They’re absolutely awesome for maintaining those great open source libraries which are just ultimately limited by the environment they’re being used in. When you decide to break out of the simpleness of the Express framework towards something that’s safer, more typed and structured you’ll most likely find NestJS. ...