How to use react-i18n?

[JorensM]

Hello, I'm trying to figure out how to use react-i18n.

Specifically, I'm not sure how I'm supposed to link my translation files.

Here is example code:

i18n.formatDate(new Date(order.createdAt), {
  style: DateStyle.Humanize
})

I get the following error:

Missing translation for key: date.humanize.lessThanOneHourAgo in locale: en

Where do I define these translations so I can use i18n.formatDate() ?