Redux—global error handler -

i running redux on node. handle asynchronous actions, reading file or listing of directory, using redux-thunk in combination promises. typical action can that:

const   fs = require('fs'),    { promisify } = require('util'),   readdir = promisify(fs.readdir);  const listfiles = dir => dispatch =>    readdir(dir)     .then(files => dispatch({        type: '…',       payload: { files }     })); 

so:

try {   store.dispatch(listfiles('/some/path'));  catch (error) {   //some rescue plan here,   //won't work if directory not exists  } 

wont work here, because action asynchronous , right now, way see handle errors add .catch() promises in actions , dispatch error action there.

that has 2 downsides:

1. a lot of code repetition and
2. i need know possible errors in ahead.

so question is: there way create global error handler, called if asynchronous action fails, such can add error indicating information state, can displayed?

could possible »storeenhancer« or »middleware«?

update

i find helpful:

process.on('unhandledrejection', (reason, promise) => {   console.log(reason.message); }); 

that callback triggered whenever promise rejected , no catch block added. right seams trick, anyway, prefer solution exact same thing, rejected promises triggered within store.dispatch(), when error within processing of actions/middleware/reducers within redux comes happen.

if you're looking redux middleware solution, take @ redux-catch.