Apollo-server-lambda with additional endpoints

I’d like to use apollo-server-lambda but also serve additional routes like this

export const handler = apolloServer.createHandler({
  expressAppFromMiddleware: (middleware) => {
    const app = express();
    app.get('/my-path', (req, res) => {
      res
        .status(200)
        .send('This is an additional endpoint.')
        .end();
    });
    app.use(middleware);
    return app;
  }
});

Is this possible?

This worked for me.

const { ApolloServer } = require("apollo-server-lambda");
const express = require("express");

const typeDefs = require("./graphql/typedefs");
const resolvers = require("./graphql/resolvers");

const server = new ApolloServer({
  typeDefs,
  resolvers,
  context: ({ event }) => ({ req: { headers: event.headers } }),
});

exports.graphqlHandler = server.createHandler({
  expressGetMiddlewareOptions: {
    cors: {
      origin: "*",
      credentials: true,
    },
  },
  expressAppFromMiddleware(middleware) {
    const app = express();

    app.get("/upload", (req, res, next) => {
      console.log("Test root!");
      res.send("Hello world REST!");
      next();
    });
    app.use(middleware);

    return app;
  },
});

How to access this endpoint? Do you have to write something in the SAM template?