AWS EventBridge

Overview

AWS EventBridge is a serverless event bus that makes it easy to connect applications using data from your own apps, integrated SaaS applications, and AWS services. EventBridge delivers a stream of real-time data from event sources and routes that data to targets like Lambda, Step Functions, SNS, SQS, and over 20 AWS services. You define event patterns to filter and route events to specific targets without writing integration code.

Key capabilities include event replay (reprocess historical events), event archive (store events for compliance or debugging), schema registry (discover and version event schemas), and cross-account event routing. EventBridge is ideal for building event-driven architectures, coordinating multi-agent AI systems, implementing async workflows, and decoupling microservices. The service is fully managed with automatic scaling and built-in reliability.

Key Features

• **Event patterns**: Filter events with JSON pattern matching on event attributes
• **20+ AWS integrations**: Connect Lambda, Step Functions, SNS, SQS, Kinesis, ECS, EC2, and more
• **SaaS integrations**: Direct connections to Zendesk, Datadog, PagerDuty, Auth0, and 30+ partners
• **Event replay**: Reprocess historical events from archives for debugging or recovery
• **Event archive**: Store events long-term for compliance, auditing, and analysis
• **Schema registry**: Auto-discover event schemas and generate code bindings
• **Cross-account routing**: Route events across AWS accounts and regions
• **Content-based filtering**: Route events based on payload content, not just metadata

Use Cases

• **Multi-agent AI coordination**: Route events between AI agents, orchestrate complex workflows
• **Async AI pipelines**: Trigger model inference, data processing, and result aggregation
• **Microservices decoupling**: Connect services without point-to-point integrations
• **SaaS application integration**: React to events from CRM, support, monitoring tools
• **Event-driven ETL**: Trigger data pipelines when new data arrives in S3, DynamoDB
• **Real-time alerting**: Route CloudWatch alarms, security events to notification systems
• **Scheduled automation**: Replace cron with EventBridge Scheduler for serverless scheduling
• **Cross-account workflows**: Coordinate processes across organizational boundaries

Technical Specifications

EventBridge supports ingestion rates up to millions of events per second with automatic scaling. Event delivery latency is typically under 500ms. The service offers at-least-once delivery to targets with automatic retries and dead-letter queue (DLQ) support for failed deliveries. Maximum event size is 256KB. Event archives can store events for up to 90 days (configurable), and replay can reprocess events at rates up to 350 events/second per archive.

Event patterns support complex matching including prefix, suffix, numeric range, IP address, and exists matching. Rules can have up to 5 targets per rule. CloudWatch metrics and logs provide visibility into event flow, rule invocations, and target delivery success rates. Integration with AWS X-Ray enables distributed tracing across event-driven applications.

Pricing

EventBridge pricing is pay-as-you-go with no upfront costs. Custom events (PutEvents API): $1.00 per million events. Cross-account events: $1.00 per million events. Third-party SaaS events: Priced by the SaaS provider. Event replay: $0.023 per GB replayed. Event archive storage: $0.023 per GB-month. Schema registry: Free for first 100 schemas, $0.10 per schema per month after. The free tier includes 14 million events per month from AWS services permanently free.

Code Example

import boto3\nimport json\n\n# Initialize EventBridge client\nevents = boto3.client('events')\n\n# Put custom event\nresponse = events.put_events(\n    Entries=[\n        {\n            'Source': 'com.myapp.agents',\n            'DetailType': 'Agent Task Completed',\n            'Detail': json.dumps({\n                'agent_id': 'agent-123',\n                'task': 'document-analysis',\n                'status': 'success',\n                'output_location': 's3://bucket/results.json'\n            }),\n            'EventBusName': 'default'\n        }\n    ]\n)\n\n# Create rule to route events to Lambda\nevents.put_rule(\n    Name='AgentCompletionRule',\n    EventPattern=json.dumps({\n        'source': ['com.myapp.agents'],\n        'detail-type': ['Agent Task Completed'],\n        'detail': {\n            'status': ['success']\n        }\n    }),\n    State='ENABLED'\n)\n\n# Add Lambda as target\nevents.put_targets(\n    Rule='AgentCompletionRule',\n    Targets=[\n        {\n            'Id': '1',\n            'Arn': 'arn:aws:lambda:us-east-1:123456789012:function:ProcessResults'\n        }\n    ]\n)

Professional Integration Services by 21medien

21medien offers comprehensive integration services for AWS EventBridge, including API integration, workflow automation, performance optimization, custom development, architecture consulting, and training programs. Our experienced team helps businesses leverage AWS EventBridge for production applications with enterprise-grade reliability, security, and support. We provide end-to-end solutions from initial consultation and proof of concept through full-scale deployment, optimization, and ongoing maintenance. Our services include custom feature development, third-party integrations, migration assistance, performance tuning, and dedicated technical support. Schedule a free consultation through our contact page to discuss your specific requirements and explore how AWS EventBridge can transform your AI capabilities and accelerate your digital transformation initiatives.

Resources

Official website: https://aws.amazon.com/eventbridge