RESTBase was built to provide a low-latency & high-throughput API for Wikipedia / Wikimedia content. It is basically a storage proxy, which presents a coherent API powered by Swagger specs to the outside, and backs up many of these entry points with storage. The default table storage backend is based on Cassandra, which helps it to perform well at Wikimedia's scale without placing undue burden on operations.As a proxy, RESTBase does not perform any significant content processing itself. Instead, it requests content transformations from backend services when needed, and typically (depending on configuration) stores it back for later retrieval. For high-volume static end points, most requests will be satisfied directly from storage.