Amazon EventBridge

What This Service Solves

EventBridge routes events between AWS services, SaaS partners, and custom applications using buses and rules.

• Use EventBridge for event-driven routing, SaaS integration, scheduled events, archive/replay, and loosely coupled workflows.

When You Should Not Use It

• Avoid EventBridge when strict queue semantics, consumer-controlled polling, or long backlog processing are central.

What AWS Manages and What You Manage

AWS manages event bus routing. You manage event patterns, buses, rules, targets, archives, permissions, and schema expectations.

Security Implications

Use resource policies for cross-account buses and least-privilege target roles.

Availability and Scaling

Targets can fail independently. Use DLQs, retries, and idempotency.

Event patterns and target limits matter. Archive/replay helps recover from downstream issues.

Cost Behavior

Events published, archive storage, replay, and target service cost add up.

Common Integrations

• Lambda
• Step Functions
• SQS
• SNS
• CloudTrail
• Scheduler

How AWS Might Present It

Certification-Specific Depth

Related Comparisons

Sources and Review Metadata

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