esser - [E]vent [S]ourcing [Ser]verlessly

• Serverless + Pay-As-You-Go
• Aggregates
• Snapshots
• Projections

Runtime

• AWS Lambda Python

Event Store

The primary data store used for writes is DynamoDB Snapshoting can be achieved via DynamoDB streams

Query Store

Aggregates should be queried using a different store. Available strategies for storing materialsed views:

• PostgreSQL
• Elasticsearch
• Redis

AWS Lambda can pull changes from DynamoDB stream and update the query models.