async function "SyntaxError: Unexpected token function"

[effbiae]

$ nodejs --harmony example.js 
/home/jack/ig/ig-markets-master/lib/ig.js:41
IG.prototype._request = async function (method, action, data = null, version = 2, attempt = 0) {
                              ^^^^^^^^

SyntaxError: Unexpected token function
    at exports.runInThisContext (vm.js:53:16)
    at Module._compile (module.js:374:25)
    at Object.Module._extensions..js (module.js:417:10)
    at Module.load (module.js:344:32)
    at Function.Module._load (module.js:301:12)
    at Module.require (module.js:354:17)
    at require (internal/module.js:12:17)
    at Object.<anonymous> (/home/jack/ig/ig-markets-master/example.js:1:72)
    at Module._compile (module.js:410:26)
    at Object.Module._extensions..js (module.js:417:10)

[ottosson]

Have you installed using npm?

npm install ig-markets --save

[cam861]

@effbiae You might be running the LTS version of Node (6.x) which doesn't support async functions out of the box. This commit PR #4 removed the third party async library and makes mention of the use of the --harmony flag when running node.

Alternatively, tanspiling using babel or similar might be a suitable option.

[adriandialog]

@effbiae I had the same issue, but after installing babel-cli ( $npm install --save-dev babel-cli and then $npm install --save-dev babel-preset-es2015 babel-preset-es2017) and created a .babelrc file in the root folder with the content : { "presets": ["es2015","es2017"] }. In the cmd just type babel-node example.js and it should work fine.