Improve stream example

Author: cressie176

CHANGELOG.md

@@ -1,5 +1,9 @@
 # Change log for amqplib
 
+## Unreleased
+
+- Improve stream example as per https://github.com/amqp-node/amqplib/issues/722
+
 ## Changes in v0.10.3
 
     git log v0.10.2..v0.10.3

examples/stream_queues/.gitignore

@@ -0,0 +1 @@
+package-lock.json

examples/stream_queues/package.json

@@ -0,0 +1,14 @@
+{
+  "name": "stream_queues",
+  "version": "1.0.0",
+  "description": "An example demonstrating use of stream queues",
+  "main": "n",
+  "dependencies": {
+    "amqplib": "^0.10.3"
+  },
+  "devDependencies": {},
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "license": "ISC"
+}

examples/stream_queues/receive_stream.js

@@ -1,8 +1,6 @@
-#!/usr/bin/env node
 const amqp = require('amqplib');
 
-
-async function receiveStream() {
+(async () => {
     try {
         const connection = await amqp.connect('amqp://localhost');
         process.once('SIGINT', connection.close);
@@ -30,18 +28,26 @@ async function receiveStream() {
         }, {
             noAck: false,
             arguments: {
-                'x-stream-offset': 'first'  // Here you can specify the offset: : first, last, next, and timestamp
-                                            // with first start consuming always from the beginning
+                /*
+                    Here you can specify the offset: : first, last, next, offset and timestamp, i.e.
+
+                    'x-stream-offset': 'first'
+                    'x-stream-offset': 'last'
+                    'x-stream-offset': 'next'
+                    'x-stream-offset': 5
+                    'x-stream-offset': { '!': 'timestamp', value: 1686519750 }
+
+                    The timestamp must be the desired number of seconds since 00:00:00 UTC, 1970-01-01
+
+                */
+                'x-stream-offset': 'first'
             }
         });
 
         console.log(' [*] Waiting for messages. To exit press CTRL+C');
     }
     // Catch and display any errors in the console
-    catch(e) { console.log(e) }
-}
-
-
-module.exports = {
-    receiveStream
-}
+    catch(e) {
+        console.log(e)
+    }
+})();

examples/stream_queues/send_stream.js

@@ -1,15 +1,14 @@
-#!/usr/bin/env node
 const amqp = require('amqplib');
 
 
-async function sendStream () {
+(async () => {
     try {
         const connection = await amqp.connect('amqp://localhost');
         process.once('SIGINT', connection.close);
 
         const channel = await connection.createChannel();
         const queue = 'my_first_stream';
-        const msg = 'Hello World!';
+        const msg = `Hello World! ${Date.now()}`;
 
         // Define the queue stream
         // Mandatory: exclusive: false, durable: true  autoDelete: false
@@ -32,10 +31,8 @@ async function sendStream () {
         connection.close();
     }
     // Catch and display any errors in the console
-    catch(e) { console.log(e) }
-}
-
+    catch(e) {
+        console.log(e)
+    }
+})();
 
-module.exports = {
-    sendStream
-}