io-ts
https://github.com/gcanti/io-ts
TypeScript
Runtime type system for IO decoding/encoding
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- Issues
- Convert to JSON Schema
- helper to map input after validation
- allow refine to have different error messages for different problems
- feat: allow creating tuples with unlimited types
- Is t.keyof() supposed to work with key numbers ?
- Help with code style using decoding, Either in async function
- Async validators
- Help
- Discussion: a standard for type building
- Type error with Kliesli composition if Error types don't match up and also importing normal Decoder/Encoder
- Docs
- TypeScript not yet supported