0.4.0: Kotlin 1.6, nested onEach

• Upgrade to Kotlin 1.6 (backwards compatible with versions 1.4 and 1.5) #41
• onEach can be used inside of ifPresent when used with nullable collection types #34 h/t @wtomi
• Use DSL markers to prevent scope leak #39 h/t @cies

0.3.0: Kotlin 1.4 + JS IR Backend

• Upgrade to Kotlin 1.4
• Enable new JS IR Backend (Thanks to @jillesvangurp)
• Publish directly to MavenCentral due to sunset of Bintray

Subset of JSON Schema Validations

Konform now supports this list of validations from the JSON Schema spec

For Any instance

• type: Check the type of the value (subtype of the declared type)
• enum: Value must be one of the specified values, can also validate Strings based on Kotlin enum classes
• const: Value must be equal to the specified value

For Numbers

• multipleOf: Value must be a multiple of the given value
• maximum: Inclusive upper bound on Number
• exclusiveMaximum: Exclusive upper bound on Number
• minimum: Inclusive lower bound on Number
• exclusiveMinimum: Exclusive lower bound on Number

For Strings

• minLength: Check minimum length of String
• maxLength: Check maximum length of String
• pattern: Validate using a regex pattern

For Arrays and Iterables

• minSize: Array must contain a minimum number of items
• maxSize: Array must not contain more than a maximum number of items
• uniqueItems: All items in the Array must be unique

For Maps

• minSize: Map must contain a minimum number of key value pairs
• maxSize: Map must not contain more than a maximum number of key value pairs

Collection support

This release supports validation of collections:

• Array
• Iterable (List, ...)
• Map

Next steps:

• v0.1.0 Library of default constraints similar to JSON Schema
• v0.2.0 i18n and l10n support for hints

Proof of concept

Initial release in pretty much proof of concept state.

What's working:

• Type-safe builder
  • Works with properties on data classes
  • Recursively validate nested data classes
  • Validate nullable properties
• Simple Hint/Error string interpolation with values from constraints

Next steps:

• v0.0.2 Validation of collection type properties
• v0.1.0 Library of default constraints similar to JSON Schema
• v0.2.0 i18n and l10n support for hints