Services & Controllers § Should controllers access the repository? § How should I split my services? § Is ContainerAware that bad? § How to organize my Business Layer?
What if we want to change The data layer? Actually frontend servers make MySQL queries. But in the long term, it’s not a good practice (see coming slides).
Think as small as possible Microservices The secret to building large apps is never build large apps. Break your application into small pieces. Then, assemble those testable, bite-sized pieces into your big application — Justin Meyer
Request-Response However front-end servers should NOT access the database directly It should fetch normalized data from an internal service API for the win!
Request-Response Even RabbitMQ can be used for synchronous requests scrutinizer-ci/rabbitmq src/Scrutinizer/RabbitMQ/Rpc http://www.rabbitmq.com/tutorials/tutorial-six-python.html
Sending Newsletters publish 100k messages Create an army of workers in AWS consume send mails message payload = emails address + content App Scheduler (Java + Quartz) Worker NL @10am segment X Get users of segment X (Scroll ElasticSearch)
PubSub $dispatcher = new EventDispatcher();! ! // Listen using an object or a callback! $listener = new AcmeListener();! $dispatcher->addListener('foobar', array($listener, 'onFoobar'));! ! $dispatcher->addListener('foobar', function (Event $event) {! // do something else with the events! });! ! // Dispatch event! $dispatcher->dispatch('foobar', $event);! Example with the Symfony EventDispatcher
Now we have the keys to start a distributed architecture let’s start decoupling our application… Front-end desktop + mobile Hard to split in several projects (need to delegate jobs) API For mobile apps & partners Backoffice Set of administration tools Workers Already decoupled from the core app
Backoffice — Moderation Manage user « data » which need to be moderated user.upload_avatar user.edit_bio user.left_rating UI to check data manually Auto detect spam & non compliant data Machine Learning data.received data.treated send mails
id_token Multiple Response Type Encoding Practices. Provides an assertion of the identity of the Resource Owner. http://openid.bitbucket.org/oauth-v2-multiple-response-types-1_0.html
SAML (Security Assertion Markup Language) SAML is an XML-based protocol that uses security tokens containing assertions to pass information about a principal between an identity provider, and a consumer. There are bundles/lib for that (but not maintained, see impl.) § pdias/FOSSamlBundle § aerialship/SamlSPBundle § chtitux/sfSAMLPlugin (symfony1)
Be ready for production Don’t loose time in configuration setup Parameters for $ENV Config template for $PROJECT Config file for $PROJECT/$ENV Centralized build tool to generate a project configuration file for any environment (local / dev / staging / prod)
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