How to configure multiple exchanges in laravel-queue-rabbitmq? - laravel

Question

I have found famous library for using RabbitMQ in Laravel.
In configuration config/queue.php
I can specify only one exchange and queue name.
Does it
support multiple exchanges?

Answer 1

For future people who will search the answer for this question.
There is one(bad) way to add multiple exchanges. You have to duplicate rabbitmq connection with new exchange and when you will want to publish the message to new exchange, you will just change connection.
This is a very ugly way, but i didn't another one. Laravel queue doesn't provide a method to change the exchange, but there is the method onConnection what you help you.
Here is a simple example
'conn_one' => [
'driver' => 'rabbitmq',
'queue' => env('RABBITMQ_QUEUE', 'default'),
'connection' => PhpAmqpLib\Connection\AMQPLazyConnection::class,
'hosts' => [
[
'host' => env('RABBITMQ_HOST', '127.0.0.1'),
'port' => env('RABBITMQ_PORT', 5672),
'user' => env('RABBITMQ_USER', 'guest'),
'password' => env('RABBITMQ_PASSWORD', 'guest'),
'vhost' => env('RABBITMQ_VHOST', '/'),
],
],
'options' => [
'ssl_options' => [
'cafile' => env('RABBITMQ_SSL_CAFILE', null),
'local_cert' => env('RABBITMQ_SSL_LOCALCERT', null),
'local_key' => env('RABBITMQ_SSL_LOCALKEY', null),
'verify_peer' => env('RABBITMQ_SSL_VERIFY_PEER', true),
'passphrase' => env('RABBITMQ_SSL_PASSPHRASE', null),
],
'queue' => [
'job' => VladimirYuldashev\LaravelQueueRabbitMQ\Queue\Jobs\RabbitMQJob::class,
'exchange' => 'exchange_two',
'exchange_type' => 'fanout',
],
],
],
'conn_two' => [
'driver' => 'rabbitmq',
'queue' => env('RABBITMQ_QUEUE', 'default'),
'connection' => PhpAmqpLib\Connection\AMQPLazyConnection::class,
'hosts' => [
[
'host' => env('RABBITMQ_HOST', '127.0.0.1'),
'port' => env('RABBITMQ_PORT', 5672),
'user' => env('RABBITMQ_USER', 'guest'),
'password' => env('RABBITMQ_PASSWORD', 'guest'),
'vhost' => env('RABBITMQ_VHOST', '/'),
],
],
'options' => [
'ssl_options' => [
'cafile' => env('RABBITMQ_SSL_CAFILE', null),
'local_cert' => env('RABBITMQ_SSL_LOCALCERT', null),
'local_key' => env('RABBITMQ_SSL_LOCALKEY', null),
'verify_peer' => env('RABBITMQ_SSL_VERIFY_PEER', true),
'passphrase' => env('RABBITMQ_SSL_PASSPHRASE', null),
],
'queue' => [
'job' => VladimirYuldashev\LaravelQueueRabbitMQ\Queue\Jobs\RabbitMQJob::class,
'exchange' => 'exchange_two',
'exchange_type' => 'fanout',
],
],
],
Use
ExampleJob::dispach($data)->onConnection('conn_one');
ExampleJob::dispach($data)->onConnection('conn_two');

Answer 2

Or another ugly way could be to set config like this
Config::set('queue.connections.rabbitmq.options.queue.exchange', 'exchange_two');
before dispatching the job to the new exchange. In this way you dont have to create a duplicate connection just setting new exchange name before dispatching the job to the new exchange.