Apollo Server for saleor federation with JWT

index.js

const { ApolloServer } = require("apollo-server");
const { ApolloGateway, RemoteGraphQLDataSource } = require("@apollo/gateway");

const gateway = new ApolloGateway({
  serviceList: [
    { name: "saleor", url: "http://localhost:8000/graphql/" },
    { name: "reviews", url: "http://localhost:8080/" },
  ],
  buildService({ name, url }) {
    return new RemoteGraphQLDataSource({
      url,
      willSendRequest({ request, context }) {
        request.http.headers.set('Authorization', context.Authorization);
      },
    });
  },
});

(async () => {
  const { schema, executor } = await gateway.load();

  const server = new ApolloServer({
    schema, executor, context: ({ req }) => {
      return {
        Authorization: req.headers.authorization || null
      }
    }
  });

  server.listen().then(({ url }) => {
    console.log(`🚀 Server ready at ${url}`);
  });
})();