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AWS's ExtendDB offers a Rust-based adapter that translates the DynamoDB wire protocol to SQL, enabling developers to run familiar NoSQL workloads on PostgreSQL or other pluggable backends. This open-source project facilitates local development and CI testing without modifying existing SDKs, effectively decoupling application logic from proprietary managed services. For engineering teams, this provides a practical path to reduce vendor lock-in and optimize infrastructure costs while maintaining API compatibility.
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ExtendDB: Open Source Amazon DynamoDB Compatible Adapter with Pluggable Storage Backends

InfoQ4 min read

AWS recently announced ExtendDB, a DynamoDB-compatible adapter that lets developers use the DynamoDB API with different storage backends, starting with PostgreSQL. The project supports existing SDKs and tools without modification, giving teams greater flexibility to run DynamoDB-style workloads outside of native DynamoDB while maintaining compatibility with current applications and workflows. By Renato Losio

AWS recently announced ExtendDB, a DynamoDB-compatible adapter that lets developers use the DynamoDB API with different storage backends, starting with PostgreSQL. The open source project supports existing AWS SDKs and tools without modification, giving teams greater flexibility to run DynamoDB-style workloads outside of native DynamoDB while maintaining compatibility with current applications and workflows. Currently at version 0.1, ExtendDB implements DynamoDB control plane and data plane APIs, including support for tables,…

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