GET /v2/reviews returns empty list

[prouleau]

You need to read this. It explains what you saw.

API changes - Get All Reviews

As some of you may be aware, our reviews table is very large and very slow to access. This does not pose an immediate problem for WaniKani until someone tries to read all their review data. We have been experiencing increasingly frequent issues concerning the access to this data, which is causing the rest of the application to perform poorly or not at all. Unfortunately, we can’t continue to provide access to this data to the detriment of users being able to submit their reviews or do lessons. …