React Webpack 4 Resolve Alias

The only thing I was missing was the dot before /app!

apiAlias: path.resolve(__dirname, './app/services/api/')

What you can do is remove the first '/' in your ApiAccounts import:

import ApiAccounts from 'apiAlias/ApiAccounts.js';

This way your import path start with the key in your alias object, which in your case is apiAlias.