feat: DynamoDB single-table design pattern - #9
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- Add dynamodb_keys.py with PK/SK/GSI key generation helpers - Refactor all 4 repositories for single-table design: - OrderRepository: GSI2 (email), GSI3 (product) - CertificateRepository: GSI1 (UUID), GSI2 (email), GSI3 (product), GSI4 (success) - ProductRepository: GSI3 (name) - ParticipantRepository: GSI2 (email), GSI5 (city) - Add EntityType filter to GSI queries to prevent cross-entity returns - Add get_all() using scan with EntityType filter - Update config to return single table name - Update dependency_container to not pass table_name to repositories - Add integration test for single-table CRUD operations
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Summary
Implements DynamoDB Single-Table design pattern, replacing 4 separate tables (orders, certificates, products, participants) with a single table based on AWS best practices.
Changes
GSI Design
Tested
End-to-end integration tests with MiniStack (local DynamoDB) passing.