React Native Joi Form Decorator

A decorator for your forms validated through Joi from Hapi.js. Build you form, decorate it with React Native Joi Form Decorator providing a valid Joi object prop.

Installation

npm install --save react-native-joi-form-decorator

How does it work?

Import component and validationsStates enum first

import { Validator, validationStates } from 'react-joi-form-decorator'

The Validator component takes 2 props, a data object and a joiObject which represents the Joi validation object.
The render method provides 2 outputs, an isValid flag and a validations data object, where each key of this object is a key from the provided data object, and the value is anobject with a state and error parameters.

state could be one of validationStates.CORRECT, validationStates.WRONG, validationStates.EMPTY

error is a string explaining why data is wrong (in English! Localization is not supported yet)

React Native configuration

You should install react-native-joi since it is used as an external dependency

npm install --save react-native-joi

Browser configuration

Please refer to react-joi-form-decorator

Basic Usage

Here's a simple example:

import React from 'react'
import { Validator, validationStates } from 'react-joi-form-decorator'
import Joi from 'joi'

class MyForm extends React.Component {
    constructor (props) {
        super (props)
            
        this.state = {
            data: {
                name: 'Frankie Frankson'
            }
        }
    }
    
    render() {
        const { data } = this.state
        
        return (
            <Validator data={data} joiObject={Joi.object().keys({name: Joi.string().min(5).required()})}>
                {(isValid, validations) => (
                    <div>
                        <label>Your name:</label>
                        <input type="text" name="name" value={data.name} onChange={() => {
                            // an update state function
                        }} />
                        {
                            validations.name.state === validationStates.WRONG && <label>{validations.name.error}</label>
                        }
                        <button type="submit" disabled={!isValid}>Submit</button>
                    </div>
                )}
            </Validator>
        )
    }
}

More power!

react-joi-form-decorator works great with react-attire!

Here's an other example:

import React from 'react'
import { Attire } from 'react-attire'
import { Validator, validationStates } from 'react-joi-form-decorator'

class MyForm extends React.Component {
    render() {
        return (
            <Attire initial={{name: 'Frankie Frankson'}}>
                {(data, onChange, reset) => (
                    <Validator data={data} joiObject={Joi.object().keys({name: Joi.string().min(5).required()})}>
                        {(isValid, validations) => (
                            <div>
                                <label>Your name:</label>
                                <input type="text" name="name" value={data.name} onChange={() => {
                                    // an update state function
                                }} />
                                {
                                    validations.name.state === validationStates.WRONG && <label>{validations.name.error}</label>
                                }
                                <button onClick={reset}>Reset my name!</button>
                                <button type="submit" disabled={!isValid}>Submit</button>
                            </div>
                        )}
                    </Validator>
                )}
            </Attire>
        )
    }
}

Contributing

If you see something you don't like or think that something is broken, please open an issue or better yet, make a PR!

License

MIT