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Making asynchronous tasks in PHP
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Olivier Dolbeau @odolbeau Web Architect About me
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RIDESHARING Cost of motoring 100€ 25€ 25€ 25€ 25€ @BlaBlaCar_FR ALONE
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A fast growing community
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A European phenomenon
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Your visitors don’t want to wait! and if they have to, they don’t want to know it
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For you :
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Your web servers want to make their job! (they don’t care about emails other boring tasks)
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Separating concerns Serveur web Consumer Consumer Consumer Consumer Consumer
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Separating concerns
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How Rabbit work?
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With more consumers
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You can add simple routing logic
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Or more complex logic
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How your app talks to RabbitMQ?
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With the PECL extension Thanks to Pieter de Zwart See: pdezwart/php-amqp Use librabbitmq (alanxz/rabbitmq-c)
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How to connect to RabbitMQ?
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How to publish a message?
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How to consume a message?
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It’s a trap !
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get > consume ● consume is a blocking call ● you don’t want blocking calls in your application ! ● Use “get” method with a poll-interval
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Wait 30 seconds and retry!
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Wait 3 minutes and retry!
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Wait half an hour and retry!
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Swarrot
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Existing processors
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Last tip !
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Making asynchronous tasks is good (even in PHP)
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@odolbeau https://joind.in/ 11237 https://github.com/swarrot/swarrot https://speakerdeck.com/odolbeau/asynchronous-tasks-in-php