One of the challenges of using cloud services is being able to develop and test locally. solves this problem for AWS by providing local implementations of a wide range of AWS services, including S3, Kinesis, DynamoDB and Lambda. It builds on top of best-of-breed tools such as , and and adds isolated processes and error injection functionality. LocalStack is very easy to use, ships with a simple JUnit runner and a JUnit 5 extension and can also run inside a docker container. For many teams, it has become the default for testing services that are deployed on AWS.
One of the challenges of using cloud services is being able to develop and test locally using those services. solves this problem for AWS by providing local implementations of a wide range of AWS services, including S3, Kinesis, DynamoDB and Lambda. It builds on top of existing best-of-breed tools such as , and and adds isolated processes and error injection functionality. LocalStack is very easy to use and ships with a simple JUnit runner and a JUnit 5 extension. We're using it in a few of our projects and have been impressed with it.

