A mad two-line helper for generating flexible Redux Action Creators with an inflexible naming schema

ActionCreatorHelper.js

const ah/*ActionHelper*/ = (g='DEFAULT',n='ACTION') => (o={}) => (Object.assign({type:`${g}_${n}`.toUpperCase()},o))
const ach/*ActionCreatorHelper*/ = (n,arr) => (arr.reduce((a,b)=>Object.assign(a,{[b]:ah(n,b)}),{}))

/*
  Example usage

  //Helper strings
    const C='create',R='read',U='update',D='delete',S='success',F='failure';

  const Sync = ach('sync',[S,F]);
  const CrudApp = ach('data',[C,R,U,D]);
  const User = ach('user',['signin','signout']);
  
  const justAnActionCreator = ah('sync','success');
  
  //Generates objects like
  //  Sync = {success: [fn] , failure: [fn]  }
  //  Sync.success = object =>( { type:'SYNC_SUCCESS' , ...object} )
  //  justAnActionCreator == Sync.success
*/

On a side note, you can probably replace those Object.assigns with object rest params, but Node support for it is a bit weak (doesn't work in my Node 6.8.0, that's for sure), depending on your version, so I didn't test it.

Babel will deal with it though, so if you really wanna save a few bytes and up your ES6+ game, go for it!

Might build this out into an npm module (I'm thinking I'll rename it 'Objection!', or more specifically redux-objection)