refactor: local storage

libs/datasource/db-service/src/services/base.ts

@@ -154,6 +154,14 @@ export abstract class ServiceBaseClass {
         await this.database.unregisterTagExporter(workspace, name);
     }
 
+    async setupDataExporter(
+        workspace: string,
+        initialData: Uint8Array,
+        cb: (data: Uint8Array) => Promise<void>
+    ) {
+        await this.database.setupDataExporter(workspace, initialData, cb);
+    }
+
     protected async _observe(
         workspace: string,
         blockId: string,

libs/datasource/db-service/src/services/database/index.ts

@@ -192,4 +192,13 @@ export class Database {
             }
         }
     }
+
+    async setupDataExporter(
+        workspace: string,
+        initialData: Uint8Array,
+        callback: (binary: Uint8Array) => Promise<void>
+    ) {
+        const db = await this.getDatabase(workspace);
+        await db.setupDataExporter(initialData, callback);
+    }
 }