DynamoDBlike

DynamoDBlike is a Python library designed to provide a simple, in-memory simulation of Amazon DynamoDB functionality. It allows developers to test their DynamoDB-related code without needing an actual AWS connection or incurring any costs. The library mimics core DynamoDB operations such as creating tables, putting items, getting items, querying, and scanning.

The primary purpose of DynamoDBlike is to facilitate local development and unit testing. By offering a DynamoDB-like interface, it enables developers to write and run tests for their applications that interact with DynamoDB, ensuring that the logic is sound before deploying to the cloud. It aims for compatibility with the boto3 library's DynamoDB interface, making it a relatively seamless drop-in replacement for testing scenarios.

DynamoDBlike stores data entirely in memory, meaning that all data is lost when the Python process terminates. This ephemeral nature is suitable for testing but not for persistent data storage. The library supports basic data types and structures that can be stored in DynamoDB, such as strings, numbers, and booleans. It also handles primary keys and secondary indexes, albeit with simplified implementations compared to the full-featured DynamoDB service. Developers can configure table schemas and provisioned throughput in a similar fashion to DynamoDB, allowing for realistic test configurations.