AWS's managed event bus.
## Quotas of note
https://docs.aws.amazon.com/eventbridge/latest/userguide/eb-quota.html
- PutEvents (10,000 requests/sec) (soft limit, varies by region)
- Max 300 subscriber invocations per second (soft limit)- "The maximum number of invocations per second to send to each API destination endpoint per account per Region. Once the quota is met, future invocations to that API endpoint are throttled. The invocations will still occur, but are delayed.")
- The invocations quota has a soft limit of 18,750 requests per second. An invocation is an event matching a rule and then being sent to the rule’s targets. If the invocation of a target fails due to a problem with the target service or account throttling, EventBridge reattempts for up to 24 hours.