When my team took the plunge to migrate Square’s largest Ruby app to GraphQL, no way were we going to manually redefine over 200 objects. Implementing a GraphQL layer includes repetitive and straightforward processes that can be expedited with metaprogramming. I will start with some GraphQL basics, then dig into process of metaprogramming a GraphQL layer from a demo ruby server. I will explain the benefits of using this design pattern and how it improves developer experience. At the end, I will demo the server handling a set diverse and complex client calls!