20 ways event-driven architectures can improve your development - Copy.pptx
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The document outlines 20 ways event-driven architectures, specifically using AWS EventBridge, can enhance development processes. It discusses benefits such as workload decoupling, simplified interactions with AWS services, and improved scalability. The author, James Beswick, emphasizes how implementing these architectures can lead to greater flexibility and efficiency in software development.
20 ways event-driven architectures can improve your development - Copy.pptx
- 1. © 2022, Amazon Web Services, Inc. or its affiliates. © 2022, Amazon Web Services, Inc. or its affiliates. 20 ways event-driven architectures can improve your development process James Beswick Principal Developer Advocate AWS Serverless
- 2. © 2022, Amazon Web Services, Inc. or its affiliates. About me James Beswick Email: [email protected] Twitter: @jbesw Principal Developer Advocate Self-confessed serverless geek Previously Software Developer Product Manager
- 3. © 2022, Amazon Web Services, Inc. or its affiliates.
- 4. © 2022, Amazon Web Services, Inc. or its affiliates. Amazon EventBridge A serverless event bus service for SaaS and AWS services
- 5. © 2022, Amazon Web Services, Inc. or its affiliates. © 2022, Amazon Web Services, Inc. or its affiliates. 1. Decouple your workloads 5
- 6. © 2022, Amazon Web Services, Inc. or its affiliates. © 2022, Amazon Web Services, Inc. or its affiliates. 2. Replace private APIs 6
- 7. © 2022, Amazon Web Services, Inc. or its affiliates. © 2022, Amazon Web Services, Inc. or its affiliates. 3. Integrate with SaaS providers 7
- 8. © 2022, Amazon Web Services, Inc. or its affiliates. © 2022, Amazon Web Services, Inc. or its affiliates. 4. Replace API chains (aka monoliths) 8
- 9. © 2022, Amazon Web Services, Inc. or its affiliates. The happy path works well
- 10. © 2022, Amazon Web Services, Inc. or its affiliates. . . . but exception handling can be messy
- 11. © 2022, Amazon Web Services, Inc. or its affiliates. © 2022, Amazon Web Services, Inc. or its affiliates. 5. Build for extensibility 11
- 12. © 2022, Amazon Web Services, Inc. or its affiliates. © 2022, Amazon Web Services, Inc. or its affiliates. 6. Simpler webhooks that 12 scale
- 13. © 2022, Amazon Web Services, Inc. or its affiliates. Building scalable webhooks HTTP API endpoint Custom event bus Default event bus AWS Lambda function Amazon SQS queue Download and deploy this code at https://github.com/aws-samples/decoupling-with-amazon-eventbridge
- 14. © 2022, Amazon Web Services, Inc. or its affiliates. © 2022, Amazon Web Services, Inc. or its affiliates. 7. Break down large AWS SAM templates 14
- 15. © 2022, Amazon Web Services, Inc. or its affiliates. Going from this… 15 Src: https://aws.amazon.com/blogs/compute/decoupling-larger-applications-with-amazon-eventbridge/
- 16. © 2022, Amazon Web Services, Inc. or its affiliates. Going from this… 16 Src: https://aws.amazon.com/blogs/compute/decoupling-larger-applications-with-amazon-eventbridge/
- 17. © 2022, Amazon Web Services, Inc. or its affiliates. © 2022, Amazon Web Services, Inc. or its affiliates. 8. Easier interaction with Amazon S3 buckets. 17
- 18. © 2022, Amazon Web Services, Inc. or its affiliates. In AWS SAM… 18 Src: https://serverlessland.com/patterns/s3-eventbridge AWSTemplateFormatVersion: '2010-09-09' Transform: AWS::Serverless-2016-10-31 Description: S3 bucket to EventBridge - @jbesw Resources: SourceBucket: Type: AWS::S3::Bucket Properties: NotificationConfiguration: EventBridgeConfiguration: EventBridgeEnabled: True ## Lambda function MyFunction: Type: AWS::Serverless::Function Properties: CodeUri: src/ Handler: app.handler Runtime: nodejs14.x MemorySize: 128 Timeout: 3 Policies: - S3ReadPolicy: BucketName: !Ref SourceBucket Events: Trigger: Type: EventBridgeRule Properties: Pattern: source: - "aws.s3"
- 19. © 2022, Amazon Web Services, Inc. or its affiliates. © 2022, Amazon Web Services, Inc. or its affiliates. 9. Create workloads for multiple S3 buckets easily 19
- 20. © 2022, Amazon Web Services, Inc. or its affiliates. One rule for multiple buckets 20 EventBridge AWS Lambda function Amazon S3 mySales-Jan mySales-Feb mySales-Mar Events Rule EventRule: Type: AWS::Events::Rule Properties: Description: "EventRule" State: "ENABLED" EventPattern: source: - "aws.s3" detail: eventName: - "PutObject" requestParameters: bucketName: - 'mySales-Jan' - 'mySales-Feb' - 'mySales-Mar'
- 21. © 2022, Amazon Web Services, Inc. or its affiliates. © 2022, Amazon Web Services, Inc. or its affiliates. 10. Wait! What about buckets that don't exist yet? 21
- 22. © 2022, Amazon Web Services, Inc. or its affiliates. One rule for dynamic buckets 22 EventBridge AWS Lambda function Amazon S3 mySales-Jan mySales-Feb mySales-Mar Events Rule EventRule: Type: AWS::Events::Rule Properties: Description: "EventRule" State: "ENABLED" EventPattern: source: - "aws.s3" detail: eventName: - "PutObject" requestParameters: bucketName: - "prefix": "mySales-" mySales-Apr
- 23. © 2022, Amazon Web Services, Inc. or its affiliates. © 2022, Amazon Web Services, Inc. or its affiliates. 11. Use custom event buses as a security boundary 23
- 24. © 2022, Amazon Web Services, Inc. or its affiliates. © 2022, Amazon Web Services, Inc. or its affiliates. 12. Use rules as a central logging point for microservices 24
- 25. © 2022, Amazon Web Services, Inc. or its affiliates. © 2022, Amazon Web Services, Inc. or its affiliates. 13. Use events to synchronize your applications 25
- 26. © 2022, Amazon Web Services, Inc. or its affiliates. Use events to synchronize applications EventBridge rules Events Step Functions Order processing workflow AWS Account EventBridge Event bus Ordering app API Gateway Order Manager service QR validator service Barista app Display app Front ends Events Publisher service Events Events Events API Gateway IoT Core Lambda function Lambda function Step Functions DynamoDB table DynamoDB table WebSocket API REST API REST API Download and deploy this code at: https://s12d.com/espresso
- 27. © 2022, Amazon Web Services, Inc. or its affiliates. © 2022, Amazon Web Services, Inc. or its affiliates. 14. Add regional failover to your application with global endpoints 27
- 28. © 2022, Amazon Web Services, Inc. or its affiliates. How global endpoints work 28 Read more at: https://aws.amazon.com/blogs/compute/introducing-global-endpoints-for-amazon-eventbridge/
- 29. © 2022, Amazon Web Services, Inc. or its affiliates. © 2022, Amazon Web Services, Inc. or its affiliates. 15. Improve your test/dev process using event archives 29
- 30. © 2022, Amazon Web Services, Inc. or its affiliates. Setting up an event archive in EventBridge 30 Read more at: https://aws.amazon.com/blogs/compute/archiving-and-replaying-events-with-amazon-eventbridge/
- 31. © 2022, Amazon Web Services, Inc. or its affiliates. © 2022, Amazon Web Services, Inc. or its affiliates. 16. Use EventBridge to scale up Lambda really quickly 31
- 32. © 2022, Amazon Web Services, Inc. or its affiliates. Setting up an event archive in EventBridge 32 Read more at: https://github.com/aws-samples/serverless-gif-generator/
- 33. © 2022, Amazon Web Services, Inc. or its affiliates. © 2022, Amazon Web Services, Inc. or its affiliates. 17. Use Schema Registry to keep track your events 33
- 34. © 2022, Amazon Web Services, Inc. or its affiliates. © 2022, Amazon Web Services, Inc. or its affiliates. 18. Use Atlas to visualize events 34
- 35. © 2022, Amazon Web Services, Inc. or its affiliates. Visualize event flows with Atlas 35 More at: https://eventbridge-atlas.netlify.app/
- 36. © 2022, Amazon Web Services, Inc. or its affiliates. © 2022, Amazon Web Services, Inc. or its affiliates. 19. Use rules to reduce Lambda invocations – and cost! 36
- 37. © 2022, Amazon Web Services, Inc. or its affiliates. © 2022, Amazon Web Services, Inc. or its affiliates. 20. Use input transformation to replace (some) Lambda functions 37
- 38. © 2022, Amazon Web Services, Inc. or its affiliates. https://serverlessland.com © 2022, Amazon Web Services, Inc. or its affiliates. All rights reserved.
- 39. © 2022, Amazon Web Services, Inc. or its affiliates. Thank you! © 2022, Amazon Web Services, Inc. or its affiliates. James Beswick @jbesw
Editor's Notes
- #12: Sing, dance and emit events like nobody is looking
- #15: SAM templates can get to be enormous
- #18: Do you need overlapping prefixs or suffixes to connect S3 to Lambda? You don't need to go S3 to Lambda to somewhere or S3 to SNS to somewhere. Just send events directly to EB
- #24: Ben Kehoe
- #28: Last year: 2 feature to route events from any commercial AWS Region, and across your AWS accounts. Wide range of use cases for global event delivery and replication scenarios. Global endpoints extends this. Simpler/more reliable way for you to improve the availability and reliability of event-driven applications. Fail over event ingestion automatically to a secondary Region during service disruptions.
- #29: Global endpoints solve these issues by introducing two core service capabilities: A global endpoint is a managed Amazon Route 53 DNS endpoint. It routes events to the event buses in either Region, depending on the health of the service in the primary Region. New metric called IngestionToInvocationStartLatency. This exposes the time to process events from the point at which they are ingested by EventBridge to the point the first invocation of a target in your rules is made. Any extended periods of high latency over 30 seconds may indicate a service disruption. The failover is triggered via a Route 53 health check that monitors a CloudWatch alarm that observes the IngestionToInvocationStartLatency in the primary Region. Diagram shows how global endpoints reroutes events being delivered from the event bus in the primary Region to the event bus in the secondary Region when CloudWatch alarms trigger the failover of the Route 53 health check.
- #38: You can customize the text from an event before EventBridge passes the event to the target of a rule. Using the input transformer in the console or the API, you define variables that use JSON path to reference values in the original event source. You can define up to 100 variables, assigning each a value from the input. Then you can use those variables in the Input Template as <variable-name>.