primer cambio

node_modules/amqplib/examples/headers.js

@@ -0,0 +1,40 @@
+#!/usr/bin/env node
+
+const amqp = require('../');
+
+(async () => {
+
+  const connection = await amqp.connect();
+  const channel = await connection.createChannel();
+
+  process.once('SIGINT', async () => {
+    await channel.close();
+    await connection.close();
+  });
+
+  const { exchange } = await channel.assertExchange('matching exchange', 'headers');
+  const { queue } = await channel.assertQueue();
+
+  // When using a headers exchange, the headers to be matched go in
+  // the binding arguments. The routing key is ignore, so best left
+  // empty.
+
+  // 'x-match' is 'all' or 'any', meaning "all fields must match" or
+  // "at least one field must match", respectively. The values to be
+  // matched go in subsequent fields.
+  await channel.bindQueue(queue, exchange, '', {
+    'x-match': 'any',
+    'foo': 'bar',
+    'baz': 'boo'
+  });
+
+  await channel.consume(queue, (message) => {
+    console.log(message.content.toString());
+  }, { noAck: true });
+
+  channel.publish(exchange, '', Buffer.from('hello'), { headers: { baz: 'boo' }});
+  channel.publish(exchange, '', Buffer.from('hello'), { headers: { foo: 'bar' }});
+  channel.publish(exchange, '', Buffer.from('lost'), { headers: { meh: 'nah' }});
+
+  console.log(' [x] To exit press CTRL+C.');
+})();