Cast configuration variable to the provided type about config HOT 3 CLOSED

you obviously just get the value as a string. But when providing a "generic" type

This "generic" type is wiped out after the compilation. The following line of code:

config.get<number>("PORT");

will be eventually transpiled to a vanilla JavaScript:

config.get("PORT");

Hence, we can't inter what type you expect at runtime.

At this stage, I'd say it'd be nice to have an option added to the get() function, say something like below which would cast to a number before returning.

@prateekkathal you should use custom configuration files for this

from config.

@matthiashermsen Thanks for the request.

I feel this is something subjective to the use case. Typescript is still evolving and sometimes, some declarations will state you to use a string PORT value than a number.

Also, the generics are meant for the purpose of declaration and not definition. At this stage, I'd say it'd be nice to have an option added to the get() function, say something like below which would cast to a number before returning.

.get("PORT", { castTo: "number" })

However, I'd leave the final decision on @kamilmysliwiec.

Thanks again!

from config.

Thanks to your reply :) I think you are right. But I was expecting something like this:
When calling

config.get("PORT");

you obviously just get the value as a string. But when providing a "generic" type

config.get<number>("PORT");

then you explicitly want to cast the value before returning it. But yeah, this is just a suggestion and my personal opinion :)

from config.