S3Proxy is an open-source and highly customizable proxy server that enables developers to emulate Amazon S3 storage locally.
With S3Proxy, we can integrate backend storage systems like local filesystems or databases and access them using the same S3 API calls your application uses in production.
S3Proxy acts as a middleware between our application and various storage backends by emulating the Amazon S3 API.
To use S3Proxy in your Java project, include the s3proxy and AWS SDK for S3 dependencies in your Maven project configuration.
S3Proxy provides a locally hosted endpoint that emulates the Amazon S3 API whereas the AWS SDK for S3 provides the tools to interact with this endpoint as though it were a real S3 service.
By running S3Proxy locally, developers can emulate S3 interactions without needing access to AWS.
The article includes an example to configure and use S3Proxy for Java applications along with detailed explanation of the code.
S3Proxy supports other storage backends, including Google Cloud Storage, OpenStack Swift, Microsoft Azure Blob Storage, and Ceph RADOS Gateway.
S3Proxy is a versatile solution for integrating and testing with various storage systems.
The article concludes by discussing how S3Proxy helps in building and testing S3-compatible applications without incurring AWS costs or requiring an active internet connection.