SyntaxError: Unexpected token export

[genebean]

When working on #2 I ran into this error that I don't really understand:

$ SLACK_WEBHOOK=https://hooks.slack.com/services/my-hook-path node server/index.js
/vagrant/server/slack.js:64
export default SlackClient;
^^^^^^
SyntaxError: Unexpected token export
    at createScript (vm.js:56:10)
    at Object.runInThisContext (vm.js:97:10)
    at Module._compile (module.js:542:28)
    at Object.Module._extensions..js (module.js:579:10)
    at Module.load (module.js:487:32)
    at tryModuleLoad (module.js:446:12)
    at Function.Module._load (module.js:438:3)
    at Module.require (module.js:497:17)
    at require (internal/module.js:20:19)
    at Object.<anonymous> (/vagrant/server/index.js:11:19)

Google & Stack Overflow lead me to believe that it is related to this from https://stackoverflow.com/a/40021867/910874:

You are using ES6 Module syntax.

This means your environment (e.g. node.js) must support ES6 Module syntax.

NodeJS uses CommonJS Module syntax (module.exports) not ES6 module syntax (export keyword).

Solution:

Use babel npm package to transpile your ES6 to a commonjs target
Refactor with CommonJS syntax.