I get the below error when building the app, is anyone aware of how to resolve this?

Error:

Type error: Route "app/api/graphql/route.ts" has an invalid "GET" export:
  Type "undefined" is not a valid type for the function's second argument.
    Expected "RouteContext", got "undefined".

Code

import { startServerAndCreateNextHandler } from "@as-integrations/next";
import { ApolloServer } from "@apollo/server";
import { NextRequest } from "next/server";
import db from "@/lib/mongo/db";
import typeDefs from "./schema/typedefs";
import resolvers from "./schema/resolvers";


const server = new ApolloServer({
  typeDefs,
  resolvers,
});

const handler = startServerAndCreateNextHandler<NextRequest>(server, {
  context: async (req) => {
    await db();
    return { req };
  },
});

export { handler as GET, handler as POST };