Update README.md

Signed-off-by: Lorenzo Mangani <[email protected]>

examples/node/README.md

@@ -6,13 +6,49 @@ Example gRPC Flight SQL API client using NodeJS
 Install and import the [Influxdb3-js library](https://github.com/bonitoo-io/influxdb3-js)
 
 ```
-import {InfluxDB} from '@influxdata/influxdb3-client/src'
+const {InfluxDBClient, Point} = require('@influxdata/influxdb3-client');
 
-let url = 'https://eu-central-1-1.aws.cloud2.influxdata.com/';
-let database = 'my-database';
-let token = 'my-token';
+const token = "abc123"
+const org = "company"
+const bucket = "sensors"
+const database = org + "_" + bucket
 
-let client = new InfluxDB({url: url, database: database, token: token});
+async function main() {
+    await insert()
+    await query()
+}
+
+main()
+
+async function insert(){
+    // Connect to HTTP API for inserting line protocol
+    const host = "http://localhost:8080"
+    const client = new InfluxDBClient({host, token})
+    const line = `stat,unit=temperature avg=20.5,max=45.0`
+    await client.write(line, bucket, org)
+    client.close()
+}
+
+async function query(){
+    // Connect to gRPc API for querying using flightsql
+    const host = "http://localhost:8082"
+    const client = new InfluxDBClient({host, token })
+    // Execute query
+    const query = `
+        SELECT * FROM "stat"
+        WHERE
+        time >= now() - interval '5 minute'
+        AND
+        "unit" IN ('temperature')
+    `
+    const queryResult = await client.query(query, database, queryType)
+    for await (const row of queryResult) {
+        console.log(`avg is ${row.avg}`)
+        console.log(`max is ${row.max}`)
+    }
+    client.close()
+
+}
 ```
 
 ### TBD