docs(ilp): add ILP authentication example (#7)

* docs(ilp): add ILP authentication example

* chore(nodejs): fix comment

Co-authored-by: glasstiger <imre@questdb.io>

Author: jerrinot

examples.manifest.yaml

@@ -3,6 +3,19 @@
   path: examples/basic.js
   header: |-
     NodeJS client library [repo](https://github.com/questdb/nodejs-questdb-client).
+- name: ilp-auth
+  lang: javascript
+  path: examples/auth.js
+  header: |-
+    NodeJS client library [repo](https://github.com/questdb/nodejs-questdb-client).
+  auth:
+    kid: testapp
+    d: 9b9x5WhJywDEuo1KGQWSPNxtX-6X6R2BRCKhYMMY6n8
+    x: aultdA0PjhD_cWViqKKyL5chm6H1n-BiZBo_48T-uqc
+    y: __ptaol41JWSpTTL525yVEfzmY8A6Vi_QrW1FjKcHMg
+  addr:
+    host: localhost
+    port: 9009
 - name: ilp-auth-tls
   lang: javascript
   path: examples/auth_tls.js

examples/auth.js

@@ -0,0 +1,37 @@
+const { Sender } = require("@questdb/nodejs-client");
+
+async function run() {
+  // construct a JsonWebKey
+  const CLIENT_ID = "testapp";
+  const PRIVATE_KEY = "9b9x5WhJywDEuo1KGQWSPNxtX-6X6R2BRCKhYMMY6n8";
+  const PUBLIC_KEY = {
+    x: "aultdA0PjhD_cWViqKKyL5chm6H1n-BiZBo_48T-uqc",
+    y: "__ptaol41JWSpTTL525yVEfzmY8A6Vi_QrW1FjKcHMg"
+  };
+  const JWK = {
+    ...PUBLIC_KEY,
+    d: PRIVATE_KEY,
+    kid: CLIENT_ID,
+    kty: "EC",
+    crv: "P-256",
+  };
+
+  // pass the JsonWebKey to the sender
+  // will use it for authentication
+  const sender = new Sender({bufferSize: 4096, jwk: JWK});
+
+  // connect() takes an optional second argument
+  // if 'true' passed the connection is secured with TLS encryption
+  await sender.connect({port: 9009, host: "127.0.0.1"}, false);
+
+  // send the data over the authenticated connection
+  sender.table("prices").symbol("instrument", "EURUSD")
+      .floatColumn("bid", 1.0197).floatColumn("ask", 1.0224).atNow();
+  await sender.flush();
+
+  // close the connection after all rows ingested
+  await sender.close();
+  return 0;
+}
+
+run().then(value => console.log(value)).catch(err => console.log(err));