Rails SQL Query Tracker
Compare Ruby's Grape to Golang's Martini for Web API Server
Fast Base62 encoding and decoding in Ruby
Generates swagger-ui json files for Rails APIs with a simple DSL.
Generate a random User-Agent for you
https://stevenyue.com/blogs/http-message-parsing-in-java-web-servers/
A JSON Serializer for Ruby Objects
A Ruby/Rack web server built for concurrency
An implementation of Protocol Buffers for Ruby.
Python DB-API client for Presto