Safely Constructing Class Schema Instances in TypeScript with Effect Library
How do you safely construct class schema instances?
Goals for a constructor function:
- Signature: (obj: A) => Effect.Effect<A, ParseError>
- TS error when passing nested instances of other classes without constructing them
I need this quite often when working with objects that include invariant validation embedded as schema filters. I want to be able to transform an object and re-validate it after.
I ended up creating custom constructors for everything and using declared __brands. Any tips on how to improve on this solution?
https://effect.website/play#ea2c8e49b2ba
I'm specifically looking for feedback:
- Any built-in solution I'm missing?
- Any TS-Wizards who came up with a generic version of a "safe-constructor" function?
Goals for a constructor function:
- Signature: (obj: A) => Effect.Effect<A, ParseError>
- TS error when passing nested instances of other classes without constructing them
I need this quite often when working with objects that include invariant validation embedded as schema filters. I want to be able to transform an object and re-validate it after.
I ended up creating custom constructors for everything and using declared __brands. Any tips on how to improve on this solution?
https://effect.website/play#ea2c8e49b2ba
I'm specifically looking for feedback:
- Any built-in solution I'm missing?
- Any TS-Wizards who came up with a generic version of a "safe-constructor" function?
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