https://apiblueprint.org/
https://www.npmjs.com/package/drakov
https://github.com/apiaryio/api-blueprint/blob/master/examples/01.%20Simplest%20API.md
https://www.jianshu.com/p/d39c3553e25a
https://segmentfault.com/a/1190000008576393
https://segmentfault.com/a/1190000008573946