Validity

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Introduction

data class User(
    val name: String?,
    val email: String?,
    val age: Int?
) : Validatable {
    override fun validation() = validation {
        ::name required { minLength(2) }
        ::email required { email() }
        ::age ifPresent { min(18) }
    }
}

User(name = "A", email = "ana@", age = 16).validate().violations

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Features

• Plain Kotlin: no annotations, no code generation, no reflection
• Every broken rule at once, with paths into nested objects, lists and maps
• Conditions are ordinary if and when
• Rules across fields, and rules that depend on the caller
• Rules can call suspend functions, such as a database lookup
• 175 built-in constraints, with documents of 14 countries and postal codes of 72
• Messages you can translate, and codes that never change
• Depends only on the Kotlin standard library and kotlinx.coroutines

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Installation

implementation("io.github.soleworks:validity-core:0.1.0")

implementation 'io.github.soleworks:validity-core:0.1.0'

<dependency>
    <groupId>io.github.soleworks</groupId>
    <artifactId>validity-core</artifactId>
    <version>0.1.0</version>
</dependency>

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Requirements

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