next.js/examples/api-routes-apollo-server-and-client-auth/pages/api/graphql.ts

import { ApolloServer } from "@apollo/server";
import { startServerAndCreateNextHandler } from "@as-integrations/next";
import { NextApiRequest, NextApiResponse } from "next";
import { schema } from "../../apollo/schema";

type ExampleContext = {
  req: NextApiRequest;
  res: NextApiResponse;
};

const apolloServer = new ApolloServer<ExampleContext>({ schema });

export default startServerAndCreateNextHandler(apolloServer, {
  context: async (req, res) => ({ req, res }),
});