server.js

const optional = require("optional");
const express = require("express");

const webpackMiddleware = optional("webpack-dev-middleware");
const webpackConfig = optional("./webpack.dev.config.js");
const webpack = optional("webpack");
const tilelive = optional("@mapbox/tilelive");
const mbtiles = optional("@mapbox/mbtiles");

const createPool = require("./db/genericQuery").pool;

const getTrail = require("./db/getTrail");
const getBoundary = require("./db/getBoundary");
const getMapboxTerrain = require("./services/getMapboxTerrain");

require("dotenv").config();

const app = express();
const pool = createPool();

app.get("/api/trail/:id", async function(request, response) {
  const trail = await getTrail(request.params.id, pool);
  return trail.url ? response.redirect(trail.url) : response.json(trail);
});

app.get("/api/boundary/:id", async function(request, response) {
  const boundary = await getBoundary(request.params.id, pool);
  return response.json(boundary);
});

app.get("/api/terrain/:x/:y/:zoom", async function(request, response) {
  const terrain = await getMapboxTerrain(request.params, pool);
  return response.redirect(terrain);
});

if (process.env.NODE_ENV == "production") {
  app.get("/dist/bundle.js", (request, response) => {
    response.redirect(
      "https://s3-us-west-2.amazonaws.com/chrissy-gunk/bundle.js"
    );
  });
}

if (process.env.NODE_ENV !== "production") {
  mbtiles.registerProtocols(tilelive);

  app.use(
    webpackMiddleware(webpack(webpackConfig), {
      publicPath: webpackConfig.output.publicPath
    })
  );

  tilelive.load("mbtiles://./tiles/local.mbtiles", function(err, source) {
    if (err) throw err;
    app.get("/tiles/:z/:x/:y.*", function(request, response) {
      source.getTile(
        request.params.z,
        request.params.x,
        request.params.y,
        function(err, tile) {
          response.setHeader("Content-Encoding", "gzip");
          response.send(tile);
        }
      );
    });
  });
}

app.use(express.static("public"));
app.listen(process.env.PORT || 5000);

const Raven = require("raven");
Raven.config(
  "https://d23f02a0fa444c62b2f0b6b643a476ba@sentry.io/1239266"
).install();