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                                            Adrian Bury

fix: When I use `plainToClass` in my nestjs app to validate nested env it cannot convert them

There is no bug in class-transformer/class-validation. The problem is with your configuration. 1. Your env (KEYCLOAK_SECRET) is a JSON, so you need to parse is into object. You can do...

fix: When I use `plainToClass` in my nestjs app to validate nested env it cannot convert them

Because nestjs have built in parser from JSON to plain JS object when request comes from API (via controller). So nestjs does it but under the hood. When you load...

fix: When I use `plainToClass` in my nestjs app to validate nested env it cannot convert them

Nope, it is not possible. Properties declarations only exist in TS. Library has to somehow get those information and is does... but from `Expose` decorator. You can read more about...