Dry-Validation as a schema validation layer for Ruby on Rails API

There are days, when you don’t get to write your new shiny application using Grape and JSON-API. Life would be much easier, if we could always start from the beginning. Unfortunately we can’t and one of the things that make some developers more valuable that others is their ability to adapt. The app might be outdated, it might have abandoned gems, but if you’re able to introduce new concepts to it (without breaking it and having to rewrite everything), you should be able to overcome any other difficulties.