index.js

import express from "express";
import { graphqlExpress, graphiqlExpress } from "apollo-server-express";
import bodyParser from "body-parser";
import { ApolloEngine } from "apollo-engine";
import { makeExecutableSchema } from "graphql-tools";
import cors from "cors";

import "./src/config/db";
import constants from "./src/config/constants";
import { typeDefs } from "./src/graphql/schema";
import { resolvers } from "./src/graphql/resolvers";
import middlewares from "./src/config/middlewares";

const app = express();

app.use(cors());
middlewares(app);

require("dotenv").config();

if (!process.env.TM_API_KEY) {
  throw new Error(
    "Please provide an API key for Ticketmaster in the environment variable TM_API_KEY."
  );
}

if (!process.env.ENGINE_API_KEY) {
  throw new Error(
    "Please provide an API key for Apollo Engine in the environment variable ENGINE_API_KEY."
  );
}

// Required: Export the GraphQL.js schema object as "schema"
const schema = makeExecutableSchema({
  typeDefs,
  resolvers
});

app.post(
  constants.GRAPHQL_PATH,
  bodyParser.json(),
  graphqlExpress(req => ({
    schema,
    tracing: true,
    cacheControl: true,
    context: {
      user: req.user,
      secrets: {
        TM_API_KEY: process.env.TM_API_KEY
      }
    }
  }))
);

const gql = String.raw;

// Using Route Handlers
app.get("/thanks", (req, res) => {
  res.send({ greeting: "Hey friend!" });
});

app.get(
  constants.GRAPHIQL_PATH,
  graphiqlExpress({
    endpointURL: constants.GRAPHQL_PATH
    // query: gql`
    //   query UpcomingEvents {
    //     myFavoriteArtists {
    //       name
    //       twitterUrl
    //       events {
    //         name
    //         startDateTime
    //       }
    //     }
    //   }
    // `
  })
);

if (process.env.NODE_ENV === "production") {
  // Express will serve up production assets
  // like our main.js file, or main.css file!
  app.use(express.static("client/build"));

  // Express will serve up the index.html file
  // if it doesn't recognize the route
  const path = require("path");
  app.get("*", (req, res) => {
    res.sendFile(path.resolve(__dirname, "client", "build", "index.html"));
  });
}

// app.use(express.static("public"));

const engine = new ApolloEngine({
  apiKey: process.env.ENGINE_API_KEY,
  // logging: {
  //   level: "DEBUG"
  // },
  stores: [
    {
      name: "publicResponseCache",
      inMemory: {
        cacheSize: 10485760
      }
    }
  ],
  queryCache: {
    publicFullQueryStore: "publicResponseCache"
  }
});

// // Start the app
engine.listen(
  {
    port: constants.PORT,
    expressApp: app
  },
  () => {
    console.log(
      `Go to http://localhost:${constants.PORT}/graphiql to run queries!`
    );
  }
);