ESM not usable in Node

[cprussin]

Currently this package is using the "module" package.json field, which is nonstandard and unsupported by node. As a result, node is unable to load ESM code and loads cjs code instead.

This package should define exports in the package.json to properly support ESM.

[3aluw]

You are right, I was facing an error using the ES6 syntax provided in the README : import contentful from "contentful-management"

[axe312ger]

I'll take care of this :)