diff --git a/cozo-core/Cargo.toml b/cozo-core/Cargo.toml
index 92e2f8c8..7e83ec47 100644
--- a/cozo-core/Cargo.toml
+++ b/cozo-core/Cargo.toml
@@ -18,7 +18,7 @@ exclude = [
 [features]
 #! # Features
 
-default = ["compact", "storage-rocksdb"]
+default = ["compact"]
 ## Enables the `minimal`, `requests` and `graph-algo` features
 compact = ["minimal", "requests", "graph-algo", "rayon"]
 ## Enables the `minimal`, `requests` and `graph-algo` features in single threaded mode
diff --git a/cozo-lib-wasm/src/lib.rs b/cozo-lib-wasm/src/lib.rs
index c8dc8705..b5926c2b 100644
--- a/cozo-lib-wasm/src/lib.rs
+++ b/cozo-lib-wasm/src/lib.rs
@@ -25,17 +25,23 @@ extern "C" {
 
 #[wasm_bindgen]
 pub struct CozoDb {
-    db: Db<MemStorage>,
+    db: DbInstance,
 }
 
 #[wasm_bindgen]
 impl CozoDb {
     pub fn new() -> Self {
         utils::set_panic_hook();
-        let db = new_cozo_mem().unwrap();
+        let db = DbInstance::new("mem", "", Default::default()).unwrap();
         Self { db }
     }
     pub fn run(&self, script: &str, params: &str) -> String {
         self.db.run_script_str(script, params)
     }
+    pub fn export_relations(&self, rels: &str) -> String {
+        self.db.export_relations_str(rels)
+    }
+    pub fn import_relation(&self, data: &str) -> String {
+        self.db.import_relation_str(data)
+    }
 }