esse

https://github.com/marcosgz/esse

With all elegance of Ruby and ElasticSearch flexibility this gem brings to you the best of both worlds. Provides a solid architecture allowing to easily Extract, Transform, Enrich and Load data from any data source into ElasticSearch/OpenSearch and also to search it. It is framework-agnostic, which means you can use it with any Ruby framework or even without any framework at all.