upgrade libsql-js: 0.4.1 -> 0.4.4

+ add vector sync example

Author: sivukhin

package-lock.json

@@ -0,0 +1,51 @@
+import { createClient } from "@libsql/client";
+import reader from "readline-sync";
+
+async function example() {
+    const config = {
+        url: process.env.URL ?? "file:local.db",
+        syncUrl: process.env.SYNC_URL,
+        authToken: process.env.AUTH_TOKEN,
+    };
+    const db = createClient(config);
+    await db.sync();
+    await db.execute(
+        "CREATE TABLE IF NOT EXISTS movies (title TEXT, embedding FLOAT32(4))",
+    );
+    await db.execute(
+        "CREATE INDEX IF NOT EXISTS movies_idx ON movies (libsql_vector_idx(embedding))",
+    );
+    await db.sync();
+
+    const title = reader.question("Add movie (title): ");
+    const embedding = reader.question(
+        "Add movie (embedding, e.g. [1,2,3,4]): ",
+    );
+
+    await db.execute({
+        sql: "INSERT INTO movies (title, embedding) VALUES (?, vector32(?))",
+        args: [title, embedding],
+    });
+
+    await db.sync();
+
+    const all = await db.execute(
+        "SELECT title, vector_extract(embedding) as embedding FROM movies",
+    );
+    console.info("all movies:");
+    for (const row of all.rows) {
+        console.log(" - " + row.title + ": " + row.embedding);
+    }
+
+    const query = reader.question("KNN query (e.g. [1,2,3,4]): ");
+    const nn = await db.execute({
+        sql: "SELECT title, vector_extract(embedding) as embedding FROM vector_top_k('movies_idx', vector32(?), 2) as knn JOIN movies ON knn.id = movies.rowid",
+        args: [query],
+    });
+    console.info("nearest neighbors:");
+    for (const row of nn.rows) {
+        console.log(" - " + row.title + ": " + row.embedding);
+    }
+}
+
+example();

packages/libsql-client/examples/sync_vector.js

@@ -105,7 +105,7 @@
         "@libsql/core": "^0.10.0",
         "@libsql/hrana-client": "^0.6.2",
         "js-base64": "^3.7.5",
-        "libsql": "^0.4.1",
+        "libsql": "^0.4.4",
         "promise-limit": "^2.7.0"
     },
     "devDependencies": {