This is an example of using json schemas to validate endpoints and create flow types.
The goal of a setup like this is to maintain high confidence in the test suite without bloating feature tests.
This was inspired by a Sarah Mei tweet in a chain about avoiding selenium: https://twitter.com/sarahmei/status/929240592348884992
Right now the types need to be regenerated with npm run regenerate-flow-types-from-schemas.
If I was setting this up in a real project, I would have a check/test that makes sure the flow types are up to date.
If you'd like to play around with the project locally:
Setup:
bundle install
npm install
Validating the contract:
rake
./node_modules/.bin/flow