Abstract backend functionality to be able to easily switch out backend implementation.

src/services/adapters/local.adapter.js

@@ -0,0 +1,65 @@
+import storage from 'localforage';
+import { removeVuexORMFlags } from '@/utils/helpers';
+
+class LocalAdapter {
+  async get(uri) {
+    const parts = uri.split('/');
+
+    if (parts.length === 1) {
+      return storage.getItem(parts[0]) || [];
+    }
+
+    if (parts.length === 2) {
+      return (await storage.getItem(parts[0]))
+        .find(it => it.id === parts[1]);
+    }
+
+    return null;
+  }
+
+  async post(uri, data) {
+    const items = await this.get(uri);
+
+    removeVuexORMFlags(data);
+    items.push(data);
+
+    return storage.setItem(uri, items);
+  }
+
+  async patch(uri, data) {
+    const parts = uri.split('/');
+
+    if (parts.length === 2) {
+      const items = await this.get(parts[0]);
+
+      const index = items.findIndex(it => it.id === parts[1]);
+      removeVuexORMFlags(data);
+      items[index] = data;
+
+      return storage.setItem(parts[0], items);
+    }
+
+    return null;
+  }
+
+  async put(uri, data) {
+    return storage.setItem(uri, data);
+  }
+
+  async delete(uri) {
+    const parts = uri.split('/');
+
+    if (parts.length === 2) {
+      const items = await this.get(parts[0]);
+
+      const index = items.findIndex(it => it.id === parts[1]);
+      items.splice(index, 1);
+
+      return storage.setItem(parts[0], items);
+    }
+
+    return null;
+  }
+}
+
+export default new LocalAdapter();