index1.js

// // Create and deploy your first functions
// // https://firebase.google.com/docs/functions/get-started
//
// exports.helloWorld = functions.https.onRequest((request, response) => {
//   functions.logger.info("Hello logs!", {structuredData: true});
//   response.send("Hello from Firebase!");
// });
const functions = require("firebase-functions");
const { ApolloServer } = require("apollo-server-express");
const express = require("express");
const cors = require("cors");
const typeDefs = require("./schema");
const resolvers = require("./resolvers");

const server = new ApolloServer({
  typeDefs,
  resolvers,
  introspection: true,
  playground: true,
  context: ({ req, res }) => ({
    headers: req.headers,
    req,
    res,
  }),
});

const app = express();
app.use(cors());

exports.graphql = functions.https.onRequest(async (req, res) => {
  if (req.method === "OPTIONS") {
    res.set("Access-Control-Allow-Methods", "POST");
    res.set("Access-Control-Allow-Headers", "Content-Type");
    res.status(204).send("");
  } else {
    await server.start();
    server.applyMiddleware({ app, path: "/", cors: false });
    return app(req, res);
  }
});