Created
August 10, 2017 15:06
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RabbitMQ DLX + priority queue
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| let messageOptions = { | |
| persistent: true, | |
| expiration: 5000, | |
| priority: 10 | |
| }; | |
| var queues = { | |
| INCOMING_MESSAGE_QUEUE: { name: 'incomming_message', options: { durable: true }, exchange: 'incomming-message-exchange', routing: 'incomming-message-routing' }, | |
| INCOMING_MESSAGE_DLX_QUEUE: { | |
| name: 'incomming_message_dlx', | |
| options: { | |
| durable: true, | |
| deadLetterExchange: 'incomming-message-exchange', | |
| deadLetterRoutingKey: 'incomming-message-routing', | |
| arguments: { | |
| 'x-max-priority': 10 | |
| } | |
| } | |
| } | |
| } | |
| pushTask: function({ task, queue, callback, messageOptions }) | |
| { | |
| amqp.connect(this.endpoint()).then(connection => | |
| { | |
| connection.createChannel().then(channel => | |
| { | |
| channel.assertQueue(queue.name, queue.options); | |
| if (queue.exchange && queue.routing) | |
| { | |
| channel.assertExchange(queue.exchange, 'direct'); | |
| channel.bindQueue(queue.name, queue.exchange, queue.routing); | |
| } | |
| if (!messageOptions) | |
| messageOptions = { persistent: true }; | |
| channel.sendToQueue(queue.name, new Buffer(JSON.stringify(task)), messageOptions); | |
| callback(null); | |
| }); | |
| }); | |
| } |
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