AWS Launches ExtendDB An Open-Source PostgreSQL Adapter to Liberate Apps from DynamoDB Lock-In.

AWS Unveils "ExtendDB": An Open-Source PostgreSQL Adapter Designed to Emulate DynamoDB Outside the Cloud

In a surprising yet highly strategic shift toward multi-cloud flexibility and local development optimization, Amazon Web Services (AWS) has officially launched an open-source project named ExtendDB. The software functions as a specialized adapter layer that maps DynamoDB protocols directly onto a standard PostgreSQL database engine. This technological bridge allows developers to execute workloads originally designed for AWS’s proprietary, cloud-exclusive NoSQL database within virtually any computing environment.

The Architecture: Pure Protocol Emulation and SigV4 Support

Rather than extracting and open-sourcing the proprietary internal codebase of DynamoDB, AWS engineered ExtendDB from scratch as a highly efficient protocol translation adapter.

• Full Protocol Parity: It intercepts DynamoDB API requests and translates them seamlessly into relational, JSONB-driven PostgreSQL queries.

• Cryptographic Security: ExtendDB incorporates built-in support for AWS's native Signature Version 4 (SigV4) authentication protocol. This ensures that application security headers remain identical whether the software is communicating with the actual AWS cloud cloudscape or a local ExtendDB instance.

Primary Deployments: From Local Workstations to CI/CD Pipelines

By open-sourcing ExtendDB under the highly permissive Apache 2.0 License, AWS provides developers with absolute freedom to leverage the software across multiple operational vectors:

1. Local Machine Development: Eliminating the cloud latency and active service costs typically incurred when connecting local code to live AWS resources.

2. Robust CI/CD Integration: Streamlining automated software testing environments by allowing lightweight PostgreSQL containers to handle mock DynamoDB operations instantly.

3. Edge and On-Premises Strategy: Enabling legacy on-prem servers or hybrid-cloud nodes to run apps optimized for the DynamoDB API without a mandatory internet connection back to AWS data centers.

Originally, DynamoDB was a very high-performance NoSQL database, but it had one serious drawback: vendor lock-in (once an application was built on it, it was virtually impossible to migrate it to run on the user's own server or another cloud). AWS's creation of ExtendDB, which converts data to PostgreSQL (an open-source database readily available on every machine), eliminated this weakness and addressed the hybrid cloud trend where large organizations want to write a single codeset and run it anywhere.

This implementation wasn't just about networking; it involved integrating the powerful feature of PostgreSQL, JSONB (binary JSON data that is indexable and searchable). ExtendDB's architecture perfectly accommodates DynamoDB's schema-less data structure and stores it seamlessly in PostgreSQL's rectangular tables without sacrificing flexibility.

Typically, when programmers test systems at home... They had to use software simulation tools like LocalStack or DynamoDB Local, but these tools suffered from high resource consumption and often lacked full SigV4 security support. The arrival of ExtendDB under the Apache 2.0 license was therefore a dream come true for DevSecOps teams, enabling them to create CI/CD automation pipelines that test code faster, more cost-effectively, and in a way that closely resembles a production environment.

 

Next MLS Match to Be Streamed Entirely via iPhone 17 Pro. 

 

Source: AWS 

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AWS Unveils "ExtendDB": An Open-Source PostgreSQL Adapter Designed to Emulate DynamoDB Outside the Cloud

In a surprising yet highly strategic shift toward multi-cloud flexibility and local development optimization, Amazon Web Services (AWS) has officially launched an open-source project named ExtendDB. The software functions as a specialized adapter layer that maps DynamoDB protocols directly onto a standard PostgreSQL database engine. This technological bridge allows developers to execute workloads originally designed for AWS’s proprietary, cloud-exclusive NoSQL database within virtually any computing environment.

The Architecture: Pure Protocol Emulation and SigV4 Support

Rather than extracting and open-sourcing the proprietary internal codebase of DynamoDB, AWS engineered ExtendDB from scratch as a highly efficient protocol translation adapter.

• Full Protocol Parity: It intercepts DynamoDB API requests and translates them seamlessly into relational, JSONB-driven PostgreSQL queries.

• Cryptographic Security: ExtendDB incorporates built-in support for AWS's native Signature Version 4 (SigV4) authentication protocol. This ensures that application security headers remain identical whether the software is communicating with the actual AWS cloud cloudscape or a local ExtendDB instance.

Primary Deployments: From Local Workstations to CI/CD Pipelines

By open-sourcing ExtendDB under the highly permissive Apache 2.0 License, AWS provides developers with absolute freedom to leverage the software across multiple operational vectors:

1. Local Machine Development: Eliminating the cloud latency and active service costs typically incurred when connecting local code to live AWS resources.

2. Robust CI/CD Integration: Streamlining automated software testing environments by allowing lightweight PostgreSQL containers to handle mock DynamoDB operations instantly.

3. Edge and On-Premises Strategy: Enabling legacy on-prem servers or hybrid-cloud nodes to run apps optimized for the DynamoDB API without a mandatory internet connection back to AWS data centers.

Originally, DynamoDB was a very high-performance NoSQL database, but it had one serious drawback: vendor lock-in (once an application was built on it, it was virtually impossible to migrate it to run on the user's own server or another cloud). AWS's creation of ExtendDB, which converts data to PostgreSQL (an open-source database readily available on every machine), eliminated this weakness and addressed the hybrid cloud trend where large organizations want to write a single codeset and run it anywhere.

This implementation wasn't just about networking; it involved integrating the powerful feature of PostgreSQL, JSONB (binary JSON data that is indexable and searchable). ExtendDB's architecture perfectly accommodates DynamoDB's schema-less data structure and stores it seamlessly in PostgreSQL's rectangular tables without sacrificing flexibility.

Typically, when programmers test systems at home... They had to use software simulation tools like LocalStack or DynamoDB Local, but these tools suffered from high resource consumption and often lacked full SigV4 security support. The arrival of ExtendDB under the Apache 2.0 license was therefore a dream come true for DevSecOps teams, enabling them to create CI/CD automation pipelines that test code faster, more cost-effectively, and in a way that closely resembles a production environment.

 

Next MLS Match to Be Streamed Entirely via iPhone 17 Pro. 

 

Source: AWS