Updated examples and fixed npm audit reports

CHANGELOG.md

@@ -43,6 +43,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
   More information, follow the [deployment Readme](./deployment/README.md). [#319](https://github.com/Accenture/reactive-interaction-gateway/issues/319)
 - make README smaller, easier to read and highlight features. [#284](https://github.com/Accenture/reactive-interaction-gateway/issues/284)
 - Updated Phoenix LiveDashboard setup to show also metrics based on the Prometheus metrics (for now only proxy and events metrics). [#157](https://github.com/Accenture/reactive-interaction-gateway/issues/157)
+- Updated [Channels Example](https://github.com/Accenture/reactive-interaction-gateway/tree/master/examples/channels-example) to use [Kafkajs](https://kafka.js.org/) and NodeJS 14. Updated [Smoke Tests](https://github.com/Accenture/reactive-interaction-gateway/tree/master/smoke_tests) to use NodeJS 14.
 
 ### Fixed
 

examples/channels-example/frontend/package.json

@@ -10,7 +10,7 @@
     "react-dom": "^16.8.6"
   },
   "devDependencies": {
-    "react-scripts": "^4.0.0"
+    "react-scripts": "^4.0.3"
   },
   "scripts": {
     "start": "react-scripts start",

examples/channels-example/frontend/src/components/Channels/Message.jsx

@@ -41,10 +41,10 @@ class Message extends PureComponent {
     );
   }
 
-  successCall(message) {
+  successCall() {
     return (
       <p className="notification is-success">
-        Successful REST API call. Response <strong>{message}</strong>.
+        Successful REST API call.
       </p>
     );
   }
@@ -62,7 +62,7 @@ class Message extends PureComponent {
           const messageString = JSON.stringify(callStatus.message);
 
           if (callStatus.status === 'ok') {
-            return this.successCall(messageString);
+            return this.successCall();
           }
           return this.errorCall(messageString);
         })()}

examples/channels-example/service/Dockerfile

@@ -1,4 +1,4 @@
-FROM node:10-alpine
+FROM node:14-alpine
 
 # Set working directory
 WORKDIR /opt/service/

examples/channels-example/service/index.js

@@ -1,21 +1,23 @@
 'use strict';
 
-const Hapi = require('hapi');
+const Hapi = require('@hapi/hapi');
 const kafkaRoutes = require('./kafka/kafka-routes');
 
 const port = 8000;
-const server = new Hapi.Server({ port });
+const server = Hapi.server({
+  port,
+});
 
 server.route(kafkaRoutes);
 
 const init = async () => {
-    await server.start();
-    console.log(`Server running at: ${server.info.uri}`);
+  await server.start();
+  console.log(`Server running at: ${server.info.uri}`);
 };
 
 process.on('unhandledRejection', (err) => {
-    console.log(err);
-    process.exit(1);
+  console.log(err);
+  process.exit(1);
 });
 
 init();

examples/channels-example/service/kafka/kafka-ctrl.js

@@ -1,53 +1,33 @@
 'use strict';
 
-const kafka = require('no-kafka');
+const { Kafka } = require('kafkajs');
 
 const KAFKA_HOSTS = process.env.KAFKA_HOSTS || 'localhost:9092';
 const KAFKA_SOURCE_TOPICS = process.env.KAFKA_SOURCE_TOPICS || 'example';
 
-const kafkaProducer = (message) => {
-    const producer = new kafka.Producer({
-        connectionString: KAFKA_HOSTS,
-    });
-
-    const stringMessageValue = JSON.stringify(message);
-
-    return producer.init()
-        .then(() => {
-            const data = {
-                topic: KAFKA_SOURCE_TOPICS,
-                message: {
-                    value: stringMessageValue,
-                },
-            };
-
-            return producer.send(data);
-        })
-        .then((result) => {
-            producer.end();
-
-            const { error } = result[0];
-            if (error) {
-                return error;
-            }
-
-            console.log(`Message successfully produced to Kafka ${JSON.stringify(result)}`);
-            return result;
-        })
-        .catch((e) => {
-            console.log(`Could not produce message to topic ${KAFKA_SOURCE_TOPICS}`);
-            console.log(e);
-            producer.end();
-            return e;
-        });
-};
+const kafka = new Kafka({
+  clientId: 'channel-service',
+  brokers: [KAFKA_HOSTS],
+});
+const producer = kafka.producer();
 
 exports.produce = {
-    handler: (request) => {
-        const msg = request.payload;
-
-        return kafkaProducer(msg)
-            .then(message => ({ status: 'ok', message }))
-            .catch(message => ({ status: 'error', message }));
-    },
+  handler: async (request) => {
+    const msg = request.payload;
+
+    try {
+      await producer.connect();
+      await producer.send({
+        topic: KAFKA_SOURCE_TOPICS,
+        messages: [{ value: JSON.stringify(msg) }],
+      });
+      await producer.disconnect();
+      console.log('Message successfully produced to Kafka');
+
+      return { status: 'ok' };
+    } catch (error) {
+      console.error('Failed to produce message to Kafka', error);
+      return { status: 'error', message: error };
+    }
+  },
 };

examples/channels-example/service/kafka/kafka-routes.js

@@ -3,9 +3,9 @@
 const kafkaController = require('./kafka-ctrl');
 
 module.exports = [
-    {
-        method: 'POST',
-        path: '/produce',
-        config: kafkaController.produce,
-    },
+  {
+    method: 'POST',
+    path: '/produce',
+    config: kafkaController.produce,
+  },
 ];