v2.2.0

Features

• Added a new decoder for empty objects JsonDecoder.emptyObject (fixes #34) (docs)

Example:

JsonDecoder.emptyObject.decode({}); // Ok<{}>({value: {}})
JsonDecoder.emptyObject.decode({ a: 1 }); // Err({error: '{a:1} is not a valid empty object'})

v2.1.1

This release contains a bug fix contributed by @mlocati 🎉

• Fix parsing enums with items evaluating to 0.

v2.1.0

Feature

• Added FromDecoder<D> to infer types from decoder declarations. (docs)

Without FromDecoder

type User = {
  firstname: string;
  lastname: string;
};

const userDecoder = JsonDecoder.object<User>(
  {
    firstname: JsonDecoder.string,
    lastname: JsonDecoder.string
  },
  'User'
);

With FromDecoder

const userDecoder = JsonDecoder.object(
  {
    firstname: JsonDecoder.string,
    lastname: JsonDecoder.string
  },
  'User'
);
type User = FromDecoder<typeof userDecoder>;

v2.0.0

In this release

• Removed deprecated APIs:

Before	After
onDecode()	fold()
decodePromise()	decodeToPromise()
then()	chain()

BREAKING CHANGES

• onDecode() is now fold().
• decodePromise() is now decodeToPromise().
• then() is now chain().
• Upgraded to TypeScript v4

v1.7.0

In this release

• Readme: Added a Table of Contents
• Readme: Added Decoder API documentation
• Added deprecation warnings for some APIs that will be renamed in the next major version:

Before	After
onDecode()	fold()
decodePromise()	decodeToPromise()
then()	chain()

v1.6.1

Added CJS and ESM builds.

v1.5.0

Features

• Added new tuple decoder.

🎉 PR #28 contributed by Richard A Hofer.

v1.4.0

Feature

• Added new mapError Decoder transformer.

🎉 PR (#26) contributed by user knutbekk

v1.3.0

Features

• Added the new JsonDecoder.enumeration() decoder (docs)

🎉 Contributed by Richard A Hofer

v1.2.0

Features

• Added the new JsonDecoder.combine() decoder (docs)

🎉 Contributed by Aleksandr Borovykh