Amazon S3 # Amazon Simple Storage Service (Amazon S3) provides cloud object storage for a variety of use cases. You can use S3 with Flink for reading and writing data as well in conjunction with the streaming state backends. You can use S3 objects like regular files by specifying paths in the following format: s3:/// The endpoint can either be a single file or a directory, for example: // Read from S3 bucket FileSource fileSource = FileSource.