Add proxy for c-base calendar json

server/route/calendar.js

@@ -0,0 +1,10 @@
+require('isomorphic-fetch');
+
+module.exports = (router) => {
+  router.get('/calendar', async (ctx) => {
+    const res = await fetch('https://www.c-base.org/calendar/exported/events.json');
+    ctx.assert((res.status === 200), res.status);
+    const body = await res.json();
+    ctx.body = body;
+  });
+};