feat: db save content

Author: Saamu192

src/repository.js

@@ -0,0 +1,12 @@
+import { writeFile, readFile } from "fs/promises";
+
+export const save = async (data) => {
+  const { pathname: databaseFile } = new URL(
+    "./../database.json",
+    import.meta.url
+  );
+  const currentData = JSON.parse(await readFile(databaseFile));
+  currentData.push(data);
+
+  await writeFile(databaseFile, JSON.stringify(currentData, null, 2));
+};