Strawberry Apollo Federation demo

This repo contains a demo of Strawberry's Apollo Federation support.

It contains 3 services:

1. A books service
2. A reviews service
3. A gateway service

Books

The books service provides a GraphQL API that returns a list of books.

Reviews

The reviews service provides a GraphQL API that only extends the Book type (coming from the books service) with a reviews field.

The reviews field is a list of reviews for the book.

Gateway

The gateway service provides a GraphQL API that combines the books and reviews. It is implemented with Apollo Server and Apollo Gateway.

Schema

Running the demo

For convenience we provided a docker-compose file that can be used to run the whole demo.

Before being able to run the demo you need the following environment variables, in both .env and gateway/.env:

APOLLO_KEY=...
APOLLO_GRAPH_REF=...

You can get these values by creating a new service in Apollo Studio. You can follow the instructions here: https://www.apollographql.com/docs/studio/getting-started/

Once you have the environment variables set, you can upload the schema to Apollo Studio by running:

make publish

Assuming you have docker and docker compose installed you can run the following command to start the demo:

docker-compose up

This should start all the services and you should be able to access the GraphQL API at http://localhost:4000/graphql.