diff --git a/packages/firestore/src/index.ts b/packages/firestore/src/index.ts
index 4f626a00..c2bda88a 100644
--- a/packages/firestore/src/index.ts
+++ b/packages/firestore/src/index.ts
@@ -1,16 +1,4 @@
-import type { CollectionReference } from '@google-cloud/firestore';
+import { createAdapter } from './adapter';
+import { getBinaryEncoder } from './binary-encoder';
 
-export function adapter<T>(collection: CollectionReference) {
-  return {
-    read: async (key: string) => {
-      const snapshot = await collection.doc(key).get();
-      return snapshot.data() as T | undefined;
-    },
-    write: async (key: string, value: T) => {
-      await collection.doc(key).set(value);
-    },
-    delete: async (key: string) => {
-      await collection.doc(key).delete();
-    },
-  };
-}
\ No newline at end of file
+export const adapter = createAdapter(getBinaryEncoder());
\ No newline at end of file