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Example code of lushdigital/lumen-pubsub

Informations about the package lumen-pubsub

laravel-pubsub

A Pub-Sub abstraction for Laravel.

This package is a wrapper bridging php-pubsub into Lumen.

The following adapters are supported:

Installation

Register the service provider with Lumen in the bootstrap/app.php file:

The package has a default configuration which uses the following environment variables.

To customize the configuration file simply copy it from vendor/lushdigital/lumen-pubsub/config/pubsub.php to app/config/pubsub.php. Then you need to add the following line to bootstrap/app.php:

You can then edit the config at app/config/pubsub.php.

Kafka Adapter Installation

Please note that whilst the package is bundled with support for the php-pubsub-kafka adapter, the adapter is not included by default.

This is because the KafkaPubSubAdapter has an external dependency on the librdkafka c library and the php-rdkafka PECL extension.

If you plan on using this adapter, you will need to install these dependencies by following these installation instructions.

You can then include the adapter using:

Usage

Creating a Subscriber

The package includes a helper command php artisan make:subscriber MyExampleSubscriber to stub new subscriber command classes.

A lot of pub-sub adapters will contain blocking subscribe() calls, so these commands are best run as daemons running as a supervisor process.

This generator command will create the file app/Console/Commands/MyExampleSubscriber.php which will contain:

Once the command has been generated, do not forget to register it with Artisan.

This is done by editing the app/Console/Kernel.php file. To register your command, simply add the command's class name to the command list.

Kafka Subscribers

For subscribers which use the php-pubsub-kafka adapter, you'll likely want to change the consumer_group_id per subscriber.

To do this, you need to use the PubSubConnectionFactory to create a new connection per subscriber. This is because the consumer_group_id cannot be changed once a connection is created.

Here is an example of how you can do this:

Adding a Custom Driver

Please see the php-pubsub documentation Writing an Adapter.

To include your custom driver, you can call the extend() function.

All versions of lumen-pubsub with dependencies

PHP Build Version
Package Version
Requires php Version >=5.6.0
laravel/lumen-framework Version ~5.0
superbalist/php-pubsub Version ^1.0
superbalist/php-pubsub-redis Version ^1.0
superbalist/php-pubsub-google-cloud Version ^2.0|^3.0
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