There are several implementations. There&#x27;s a reference in javascript based on express, sangria for scala, and I read on a blog post about people working on a ruby server. See: <a href="http:&#x2F;&#x2F;facebook.github.io&#x2F;react&#x2F;blog&#x2F;2015&#x2F;09&#x2F;14&#x2F;community-roundup-27.html" rel="nofollow">http:&#x2F;&#x2F;facebook.github.io&#x2F;react&#x2F;blog&#x2F;2015&#x2F;09&#x2F;14&#x2F;community-ro...</a><p>You basically define the schema, and for each method you want to support you implement pulling the data from your datastore.<p>Authentication is up to you - stick a bearer header on your requests and implement checks in your server and you have secure backends, etc.