eventbridge

# AWS EventBridge Amazon EventBridge is a serverless event bus that connects applications using events. Route events from AWS services, custom applications, and SaaS partners. ## Table of Contents - [Core Concepts](#core-concepts) - [Common Patterns](#common-patterns) - [CLI Reference](#cli-reference) - [Best Practices](#best-practices) - [Troubleshooting](#troubleshooting) - [References](#references) ## Core Concepts ### Event Bus Channel that receives events. Types: - **Default**: Receives AWS service events - **Custom**: Your application events - **Partner**: SaaS application events ### Rules Match incoming events and route to targets. Each rule can have up to 5 targets. ### Event Patterns JSON patterns that define which events match a rule. ### Targets AWS services that receive matched events (Lambda, SQS, SNS, Step Functions, etc.). ### Scheduler Schedule one-time or recurring events to invoke targets. ## Common Patterns ### Create Custom Event Bus and Rule **AWS CLI:** ```bash # Create custom event bus aws events create-event-bus --name my-app-events # Create rule aws events put-rule \ --name order-created-rule \ --event-bus-name my-app-events \ --event-pattern '{ "source": ["my-app.orders"], "detail-type": ["Order Created"] }' # Add Lambda target aws events put-targets \ --rule order-created-rule \ --event-bus-name my-app-events \ --targets '[{ "Id": "process-order", "Arn": "arn:aws:lambda:us-east-1:123456789012:functio...