Rename main folders and write sql backend adaptor

frontend/public/sw.js

@@ -0,0 +1,67 @@
+/* eslint-disable no-restricted-globals */
+
+import { clientsClaim, skipWaiting } from 'workbox-core'
+import { ExpirationPlugin } from 'workbox-expiration'
+import { precacheAndRoute, createHandlerBoundToURL, cleanupOutdatedCaches } from 'workbox-precaching'
+import { registerRoute } from 'workbox-routing'
+import { StaleWhileRevalidate, NetworkFirst } from 'workbox-strategies'
+
+skipWaiting()
+clientsClaim()
+
+// Injection point
+precacheAndRoute(self.__WB_MANIFEST)
+
+cleanupOutdatedCaches()
+
+const fileExtensionRegexp = new RegExp('/[^/?]+\\.[^/]+$')
+registerRoute(
+  // Return false to exempt requests from being fulfilled by index.html.
+  ({ request, url }) => {
+    // If this isn't a navigation, skip.
+    if (request.mode !== 'navigate') {
+      return false
+    } // If this is a URL that starts with /_, skip.
+
+    if (url.pathname.startsWith('/_')) {
+      return false
+    } // If this looks like a URL for a resource, because it contains // a file extension, skip.
+
+    if (url.pathname.match(fileExtensionRegexp)) {
+      return false
+    } // Return true to signal that we want to use the handler.
+
+    return true
+  },
+  createHandlerBoundToURL('index.html')
+)
+
+registerRoute(
+  // Add in any other file extensions or routing criteria as needed.
+  ({ url }) => url.origin === self.location.origin && (
+    url.pathname.endsWith('.png')
+    || url.pathname.endsWith('.svg')
+    || url.pathname.endsWith('.jpg')
+    || url.pathname.endsWith('.jpeg')
+    || url.pathname.endsWith('.ico')
+    || url.pathname.endsWith('.ttf')
+    || url.pathname.endsWith('.woff')
+    || url.pathname.endsWith('.woff2')
+  ), // Customize this strategy as needed, e.g., by changing to CacheFirst.
+  new StaleWhileRevalidate({
+    cacheName: 'res',
+    plugins: [
+      // Ensure that once this runtime cache reaches a maximum size the
+      // least-recently used images are removed.
+      new ExpirationPlugin({ maxEntries: 50 }),
+    ],
+  })
+)
+
+registerRoute(
+  // Add in any other file extensions or routing criteria as needed.
+  ({ url }) => url.origin === self.location.origin && url.pathname.includes('i18n'),
+  new NetworkFirst({
+    cacheName: 'i18n',
+  })
+)