reedx/src/utils/createTypes.js

Like redux but with less code

import invariant from 'invariant'
import isFunc from './isFunc'

const { values, keys } = Object
const PREFIX = '@@reedx'

const snakeCase = (str) =>
  str.replace(/([A-Z])/g, (char) => `_${char.toLowerCase()}`)

const typeByHandlersKeys = (name) => (type) =>
  `${PREFIX}/${name}/${snakeCase(type).toUpperCase()}`

const createTypes = (name, reducers) => {
  invariant(
    values(reducers).every(isFunc),
    'All of you reducers need to be a function'
  )

  return keys(reducers).map(typeByHandlersKeys(name))
}

export default createTypes