Eventbridge
/SKILLAWS EventBridge : bus d'événements sans serveur destiné aux architectures orientées événements. À utiliser pour créer des règles, configurer des modèles d'événements, mettre en place des événements
name: eventbridge
description: AWS EventBridge serverless event bus for event-driven architectures. Use when creating rules, configuring event patterns, setting up scheduled events, integrating with SaaS, or building cross-account event routing.
last_updated: "2026-01-07"
doc_source: https://docs.aws.amazon.com/eventbridge/latest/userguide/
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
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:
# 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:function:ProcessOrder"
}]'
# Add Lambda permission
aws lambda add-permission \
--function-name ProcessOrder \
--statement-id eventbridge-order-created \
--action lambda:InvokeFunction \
--principal events.amazonaws.com \
--source-arn arn:aws:events:us-east-1:123456789012:rule/my-app-events/order-created-ruleboto3:
import boto3
events = boto3.client('events')
# Create event bus
events.create_event_bus(Name='my-app-events')
# Create rule
events.put_rule(
Name='order-created-rule',
EventBusName='my-app-events',
EventPattern=json.dumps({
'source': ['my-app.orders'],
'detail-type': ['Order Created']
}),
State='ENABLED'
)
# Add target
events.put_targets(
Rule='order-created-rule',
EventBusName='my-app-events',
Targets=[{
'Id': 'process-order',
'Arn': 'arn:aws:lambda:us-east-1:123456789012:function:ProcessOrder'
}]
)Publish Custom Events
import boto3
import json
events = boto3.client('events')
events.put_events(
Entries=[
{
'Source': 'my-app.orders',
'DetailType': 'Order Created',
'Detail': json.dumps({
'order_id': '12345',
'customer_id': 'cust-789',
'total': 99.99,
'items': [
{'product_id': 'prod-1', 'quantity': 2}
]
}),
'EventBusName': 'my-app-events'
}
]
)Scheduled Events
# Run every 5 minutes
aws events put-rule \
--name every-5-minutes \
--schedule-expression "rate(5 minutes)"
# Run at specific times (cron)
aws events put-rule \
--name daily-cleanup \
--schedule-expression "cron(0 2 * * ? *)"
# Add target
aws events put-targets \
--rule every-5-minutes \
--targets '[{
"Id": "cleanup-function",
"Arn": "arn:aws:lambda:us-east-1:123456789012:function:Cleanup"
}]'EventBridge Scheduler (One-Time and Flexible)
# One-time schedule
aws scheduler create-schedule \
--name send-reminder \
--schedule-expression "at(2024-12-25T09:00:00)" \
--target '{
"Arn": "arn:aws:lambda:us-east-1:123456789012:function:SendReminder",
"RoleArn": "arn:aws:iam::123456789012:role/scheduler-role",
"Input": "{\"message\": \"Merry Christmas!\"}"
}' \
--flexible-time-window '{"Mode": "OFF"}'
# Recurring with flexible window
aws scheduler create-schedule \
--name hourly-sync \
--schedule-expression "rate(1 hour)" \
--target '{
"Arn": "arn:aws:lambda:us-east-1:123456789012:function:SyncData",
"RoleArn": "arn:aws:iam::123456789012:role/scheduler-role"
}' \
--flexible-time-window '{"Mode": "FLEXIBLE", "MaximumWindowInMinutes": 15}'AWS Service Events
# EC2 state changes
aws events put-rule \
--name ec2-state-change \
--event-pattern '{
"source": ["aws.ec2"],
"detail-type": ["EC2 Instance State-change Notification"],
"detail": {
"state": ["stopped", "terminated"]
}
}'
# S3 object created
aws events put-rule \
--name s3-upload \
--event-pattern '{
"source": ["aws.s3"],
"deta
