Redux-Validator-Middleware

validator-middleware-example.js

import { validator } from 'validator'
import { VALIDATOR_SYMBOL } from 'validator-middleware';

const data = { x: 1, y: 2 };
const validator = validator(fn1, fn2); // curry, one data input left

const action = {
    [VALIDATOR_SYMBOL]: {
        data,
        validator,
        types: ['VALID', 'INVALID']
    }
}

// validator-middleware read VALIDATOR ACTION
// then do validation with action's validator and data
// then dispatch FSA to next middleware according to validate result

{
    type: 'VALID' || 'INVALID',
    payload: result
}

// Then you can for example create custom reducer to save validator result

const formReducer = (state, action) => {
    if (action.type === 'VALID') {
        return action.payload;
    }
    return state;
}