check in producer test logic

kafka/eventProducer.js

@@ -0,0 +1,76 @@
+// import the `Kafka` instance from the kafkajs library
+const { Kafka } = require('kafkajs');
+
+// the client ID lets kafka know who's producing the messages
+const clientId = 'my-app';
+// we can define the list of brokers in the cluster
+const brokers = ['localhost:9092', 'localhost:9093', 'localhost:9094'];
+// this is the topic to which we want to write messages
+const topic = 'event';
+
+// initialize a new kafka client and initialize a producer from it
+const kafka = new Kafka({ clientId, brokers });
+const { Partitioners } = require('kafkajs');
+
+const producer = kafka.producer({ createPartitioner: Partitioners.DefaultPartitioner });
+
+// we define an async function that writes a new message each second
+async function produce_event() {
+  await producer.connect();
+  let i = 0;
+
+  // after the produce has connected, we start an interval timer
+  setInterval(async () => {
+    try {
+      // send a message to the configured topic with
+      // the key and value formed from the current value of `i`
+      let y = Math.random()
+        .toString(36)
+        .replace(/[^a-z]+/g, '')
+        .substr(0, 5);
+      let z = Math.random()
+        .toString(36)
+        .replace(/[^a-z]+/g, '')
+        .substr(0, 5);
+      let x = {
+        event_uuid: '00fea66e-a433-536d-a13d-2d873fab0a08',
+        website_id: i,
+        session_uuid: '00fea66e-a433-536d-a13d-2d873fab0a08',
+        created_at: '2020-07-18 11:53:33',
+        url: y,
+        event_data: z,
+      };
+
+      await producer.send({
+        topic,
+        messages: [
+          {
+            key: 'my-key',
+            value: JSON.stringify(x),
+          },
+          {
+            key: 'my-key',
+            value: JSON.stringify(x),
+          },
+          {
+            key: 'my-key',
+            value: JSON.stringify(x),
+          },
+          {
+            key: 'my-key',
+            value: JSON.stringify(x),
+          },
+          {
+            key: 'my-key',
+            value: JSON.stringify(x),
+          },
+        ],
+      });
+      i++;
+    } catch (err) {
+      console.error('could not write message ' + err);
+    }
+  }, 4);
+}
+
+module.exports = produce_event;