A collection of runtime types and combinators for use with io-ts

Installation

To install the stable version:

npm i io-ts-types

Note. io-ts-types depends on

• fp-ts
• io-ts
• monocle-ts

starting from 0.5.0 you must install fp-ts, io-ts and monocle-ts manually (fp-ts, io-ts and monocle-ts are listed in peerDependency)

Usage

Import specific codecs and combinators directly from the lib folder, as in:

import { NonEmptyString } from "io-ts-types/lib/NonEmptyString"

In this way, you'll only need to add the monocle-ts dependency if you import any of the combinators depending on it, like getLenses

TypeScript compatibility

The stable version is tested against TypeScript 3.2.2, but should run with TypeScript 3.0.1+ too

Note. If you are running < typescript@3.0.1 you have to polyfill unknown.

You can use unknown-ts as a polyfill.

Documentation

• API Reference