feat(front): Service worker is coming!

1 files changed, 22 insertions, 0 deletions

diff --git a/Timeline/ClientApp/src/sw/sw.ts b/Timeline/ClientApp/src/sw/sw.ts
new file mode 100644
index 00000000..67f5dfd4
--- /dev/null
+++ b/Timeline/ClientApp/src/sw/sw.ts
@@ -0,0 +1,22 @@
+import { precacheAndRoute, matchPrecache } from 'workbox-precaching';
+import { setDefaultHandler } from 'workbox-routing';
+import { NetworkOnly } from 'workbox-strategies';
+
+declare let self: ServiceWorkerGlobalScope;
+
+precacheAndRoute(self.__WB_MANIFEST);
+
+const networkOnly = new NetworkOnly();
+
+setDefaultHandler((options) => {
+  const { request, url } = options;
+  if (url && url.pathname.startsWith('/api/')) {
+    return networkOnly.handle(options);
+  }
+
+  if (request instanceof Request && request.destination === 'document')
+    return matchPrecache('/index.html').then((r) =>
+      r == null ? Response.error() : r
+    );
+  else return networkOnly.handle(options);
+});