chimera_http_client (rubygems): The Chimera http client offers an easy to learn interface and consistent error handling. It is lightweight, fast and enables you to queue HTTP requests to run them in parallel for better performance and simple aggregating of distributed data. Despite it's simple interface it allows for advanced features like using custom deserializers, loggers, caching requests individiually, and instrumentation support (soon to be implemented). 
Keywords: api-client|gem|hacktoberfest|http-client|queue-request|ruby