In-Memory

The in-memory backends ship with the core framework.

Event Store

import "github.com/modernice/goes/event/eventstore"

store := eventstore.New()

The in-memory event store supports the full event.Store interface: insert, find, query, and delete. Events are stored in memory and lost when the process exits.

Event Bus

import "github.com/modernice/goes/event/eventbus"

bus := eventbus.New()

The in-memory event bus supports the full event.Bus interface: publish and subscribe. Events are delivered to subscribers within the same process.

Auto-Publish with WithBus

To automatically publish events when they're inserted into the store:

store := eventstore.WithBus(eventstore.New(), bus)

When to Use

• Testing — fast and requires zero infrastructure
• Prototyping — get started without databases
• Development — iterate quickly on domain logic
• Single-process applications — when persistence isn't needed

Limitations

• Events are lost when the process stops
• No distribution — subscribers must be in the same process
• No persistence — cannot survive restarts
• Not suitable for production (unless you don't need durability)