overshom-valid

Powerful TypeScript validation

• 💪 Completely typed runtime validation with TypeScript.
• 🧠 Full intellisense support.
• [ ℹ️, ℹ️, ℹ️ ] Accumulated errors = see all validation errors at once.
• 🍞 Breadcrumbs-enhanced errors let you understand exact key failed validation.
• ⭐ Intuitive schema definitions and clear return type.
• 🚀 Easily customizable.
• 💫 Zero dependecy.

Installation

yarn add overshom-valid
# or
npm i overshom-valid

Usage

import { v } from 'overshom-valid'

enum USER_ROLE {
    USER = 'USER',
    ADMIN = 'ADMIN',
}

const UserDto = v.class({
    login: v
        .String()
        .min(4)
        .max(16)
        .pattern(/^\w+$/),

    role: v.Object({
        type: v.Enum(USER_ROLE),
    }),

    avatar: v
        .String()
        .optional(),
})

const user = new UserDto(`{
    "login": "overshom",
    "role": {
        "type": "ADMIN"
    }
}`)

More use cases

Inspect *.spec.ts files inside ./src/ directory to see more use cases of validations.