Refactor

server/routes.js

@@ -0,0 +1,39 @@
+const path = require('path');
+import httpErrors from 'http-errors';
+import Koa from 'koa';
+import Router from 'koa-router';
+import sendfile from 'koa-sendfile';
+
+const koa = new Koa();
+const router = new Router();
+
+// // error handler
+// koa.use(async (ctx, next) => {
+//   try {
+//     await next();
+//   } catch (err) {
+//     ctx.status = err.status || 500;
+//     ctx.body = err.message;
+//   }
+// });
+
+// Frontend
+router.get('/service-worker.js', async (ctx) => {
+  ctx.set('Content-Type', 'application/javascript');
+  const stats = await sendfile(ctx, path.join(__dirname, 'static/service-worker.js'));
+  if (!ctx.status) ctx.throw(httpErrors.NotFound());
+});
+
+router.get('*', async (ctx) => {
+  const stats = await sendfile(ctx, path.join(__dirname, 'static/index.html'));
+  if (!ctx.status) ctx.throw(httpErrors.NotFound());
+});
+
+koa.use(router.routes());
+
+// 404 handler
+koa.use(async () => {
+  throw httpErrors.NotFound();
+});
+
+export default koa;