Events

A tool for inspecting EventBridge configuration.

To run the tool use:

go run ./cli/*.go --event=someEvent --source=com.example

Use cases

There are a number of goals for this tool that will help it become a productive and compelling offering for those using EventBridge:

Query all subscribers to a specific event (including other AWS accounts)
Query the publisher(s) of a specific event
Validate events as they are in transit on the bus, publish metrics about event validation
Re-raise events in a new source to indicate they've passed validation
Query the relationship between events & functions
Group events & functions by tag to create contextual diagrams
Query built-in AWS events and see the relationship between these events and business events
Query publisher / subscriber relationships in multi-regional setups

This tool makes the following assumptions about your EventBridge events:

You use the Source field to denote the "namespace" under which the event is raised (eg. com.mybusiness).
You use the DetailType field to denote the event name.
You use the Detail field to store the event payload.
You add a lambda ARN to the Resources field of the event to indicate which function raised the event.
All your events are run over the default event bus (TODO: Remove this requirement)