restQL-core - microservice query language

RestQL-core is a Java/Clojure microservice query language to fetch information from multiple services. It should be included because many people look for some library or framework to centralize and query multiple APIs in a easier and more efficient manner.

With restQL-core people can map their API urls (resources) and use a query language (clojure) or the query builder to fetch resources from multiple sources in one query, instead of having to perform multiple calls separately.