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Installation

Prerequisites

  • Node.js ≥ 18
  • MobX ≥ 6.0.1 (peer dependency)
  • React ≥ 18 (recommended for React integration)

Install

# npm
npm install mobx-form mobx

# bun
bun add mobx-form mobx

# yarn
yarn add mobx-form mobx

# pnpm
pnpm add mobx-form mobx
note

mobx is a peer dependency — you must install it alongside mobx-form.

For React Projects

If you're using mobx-form with React, you'll also need mobx-react-lite:

npm install mobx-react-lite
# or
bun add mobx-react-lite

Module Formats

mobx-form ships with:

FormatEntry Point
ESM (import)dist/index.mjs
CJS (require)dist/index.cjs
Types (ESM)dist/mobx-form.d.mts
Types (CJS)dist/mobx-form.d.ts

The package uses the exports field in package.json, so modern bundlers (Vite, webpack 5, esbuild, bun) will automatically resolve the correct format.

Verify Installation

import { createModel } from 'mobx-form';

const form = createModel({
descriptors: {
name: { required: 'Name is required' },
},
initialState: { name: '' },
});

console.log(form.fields.name.value); // ''
console.log(form.valid); // true (not validated yet)

If this runs without errors, you're all set!