update examples

example/nodejs-commonjs/document-persistent/index.js

@@ -0,0 +1,68 @@
+const { Document, Charset } = require("flexsearch");
+const Sqlite = require("flexsearch/db/sqlite");
+// const Postgres = require("flexsearch/db/postgres");
+// const MongoDB = require("flexsearch/db/mongodb");
+// const Redis = require("flexsearch/db/redis");
+// const Clickhouse = require("flexsearch/db/clickhouse");
+
+// loading test data
+const data = require(__dirname + "/data.json");
+
+(async function(){
+
+    // create DB instance with namespace
+    const db = new Sqlite("my-store");
+
+    // create the document index
+    const document = new Document({
+        document: {
+            id: "tconst",
+            store: true,
+            index: [{
+                field: "primaryTitle",
+                tokenize: "forward",
+                encoder: Charset.LatinSimple
+            },{
+                field: "originalTitle",
+                tokenize: "forward",
+                encoder: Charset.LatinSimple
+            }],
+            tag: [{
+                field: "startYear"
+            },{
+                field: "genres"
+            }]
+        }
+    });
+
+    // mount database to the index
+    await document.mount(db);
+    // await document.destroy();
+    // await document.mount(db);
+
+    // add test data
+    for(let i = 0; i < data.length; i++){
+        document.add(data[i]);
+    }
+
+    // transfer changes (bulk)
+    await document.commit();
+
+    // perform a query
+    const result = await document.search({
+        query: "carmen",
+        tag: {
+            "startYear": "1894",
+            "genres": [
+                "Documentary",
+                "Short"
+            ]
+        },
+        suggest: true,
+        enrich: true,
+        merge: true
+    });
+
+    console.log(result);
+
+}());