Create runtypes from existing TypeScript types?

[aaronransley]

Hi there, I'm curious if it's possible to create runtype types from existing TypeScript types?

Specifically, I am hoping to avoid:

• Having to comb the codebase and redefine types as runtypes manually
• Having to cast these new runtypes into TypeScript types using Static<T>

Perhaps this simply isn't possible due to the TypeScript architecture, but I'd be curious to know more if you have a moment to share. From what I can gather, there isn't a single "runtime types library" out there that doesn't rely either on:

• Defining types using a library provided API instead of vanilla TypeScript
• Exporting types to JSON Schema or some interchange format as a discrete build step

Lastly, I just wanted to thank you for your work on this library. It has a wonderfully intuitive API and it's easy to see the amount of care that went into documentation & general developer ergonomics ✨

[nir581]

I'll add and say that one the disadvantages that I see currently in the fact that we can't create a runtype from a given TS type or interface, is the fact that you can't use the "find usages" action in your IDE to review all the places that you are using a specific property of that runtype, while that can easily be done if you apply it on a well defined TS type/interface.
Another thing I came across today is a usecase where you want to rename an existing property of a runtype in a project. Because the IDE doesn't have the above connection between a runtype and its properties, you can't rename a property in a single automatic action, you have to do it manually which is annoying and error prune.
WDYT?