Time: 15 to 25 minutes · You'll need: paper or a notes app · Builds on: Lesson 5
Warm-up
Check yourself
A filter has `"since": 500` and `"until": 800`. Does an event with `created_at` 800 match the time range?
Check yourself
A subscription's filter has `"limit": 5`. After EOSE, eight new matching events are published. How many does the app receive?