server.js

"use strict";

require("dotenv-safe").load();
const cfGraphql = require("cf-graphql");
const express = require("express");
const { getLogger, getConfig } = require("./utils");
const logger = getLogger("server");
const cors = require("cors");

const EventCache = require("./eventCache");

async function startServer({ space, accessToken, hostname, port, basePath }) {
  logger.info(`Starting server at ${hostname}:${port}`);
  const app = express();

  app.use(cors());

  const events = new EventCache({ space, accessToken });

  app.get("/events", (req, res, next) => {
    events
      .getLandingPageEvents()
      .then(events => {
        res.send(
          events.map(event => {
            // Hide secrets.
            delete event.secrets;
            return event;
          })
        );
      })
      .catch(next);
  });

  // This API call will request an entry with the specified ID from the space defined at the top, using a space-specific access token.

  app.get("/event", (req, res, next) => {
    events
      .getEvent(req.query.name)
      .then(event => {
        // Hide secrets.
        delete event.secrets;
        res.send(event);
      })
      .catch(next);
  });

  app.get("/:event/schema", (req, res, next) => {
    events
      .getSchema(req.params.event)
      .then(schema => {
        return res.send(schema);
      })
      .catch(next);
  });

  app.get("/:locale/:event/graphiql", (req, res) => {
    const ui = cfGraphql.helpers.graphiql({
      title: "Assembly GraphQL Content",
      // TODO: Remove locale specific middleware once https://github.com/contentful-labs/cf-graphql/issues/29 has been resolved.
      url: `${basePath}${req.params.locale}/${req.params.event}/graphql`
    });
    res
      .set(ui.headers)
      .status(ui.statusCode)
      .end(ui.body);
  });

  app.use("/:locale/:event/graphql", (req, res, next) => {
    // TODO: Remove locale specific middleware once https://github.com/contentful-labs/cf-graphql/issues/29 has been resolved.
    events
      .getApi(req.params.event, req.params.locale)
      .then(middleware => middleware(req, res, next))
      .catch(next);
  });

  app.listen(port, hostname);
  logger.info("Contentful backend running!");
  logger.info(
    `You can access GraphiQL at http://${hostname}:${port}/{event}/graphiql/`
  );
  logger.info(
    `You can use the GraphQL endpoint at http://${hostname}:${port}/{event}/graphql/`
  );
}

(async () => {
  const config = getConfig();
  await startServer(config);
})().catch(err => {
  logger.fatal(err.message);
  process.exit(1);
});