What happens underneath GraphQL Federated API
I am really fascinated to work with GraphQL federated API. Recently I was building a code generation framework which can generate actual compilable and deploy-able code in Java and which connect to each other automatically be means of GraphQL Federation API.
For this to really shine I needed to have a very deep understanding on how GrahQL works and what is actually going underneath.
In this post I will discuss on what go in the life-cycle of a federated GraphQL API. We will take a very simple Federated GraphQL API built with NodeJS and intercept it’s traffic with HTTP Toolkit.
You can follow along with me every step and I promise the end result will be delicious. We will get to know how the Gateway queries all the attached services.
The project is hosted at:
In a Federated GraphQL service, the responsibillity of the gateway is to
- Consolidate all the component GraphQL service schema structures.
- Validate all the services by doing a query and making sure…
