From next_steps

Get production-ready

Before you go into production, there is a couple of things we recommend taking care of.

Move to WebSocket
The REST api is only recommended for initial testing. For proper integration, we recommend switching to WebSocket (see REST vs. WebSocket)

Realistic testing
To get a feel for the behavior of matchmaking, you need to create a test where you constantly enqueue players with different skill levels. This is necessary in order for the matchmaker to learn the distribution of skill and the stochasticity/patterns of players enqueueing (see Notes on testing).