{"id":3427,"date":"2022-12-07T10:33:06","date_gmt":"2022-12-07T10:33:06","guid":{"rendered":"http:\/\/the-codest.localhost\/blog\/learn-more-about-ruby-on-rails-with-pub-sub\/"},"modified":"2026-03-09T13:04:35","modified_gmt":"2026-03-09T13:04:35","slug":"aprenda-mas-sobre-ruby-on-rails-con-pub-sub","status":"publish","type":"post","link":"https:\/\/thecodest.co\/es\/blog\/learn-more-about-ruby-on-rails-with-pub-sub\/","title":{"rendered":"M\u00e1s informaci\u00f3n sobre Ruby on Rails con Pub\/Sub"},"content":{"rendered":"<p><strong><a href=\"https:\/\/thecodest.co\/es\/case-studies\/providing-a-team-of-ruby-developers-for-a-fintech-company\/\">Ruby<\/a> en <a href=\"https:\/\/thecodest.co\/es\/blog\/ways-to-increase-your-rails-performance\/\">Rieles<\/a><\/strong> (Rails, <a href=\"https:\/\/thecodest.co\/es\/blog\/hire-ror-developer\/\">RoR<\/a>) es un conocido <a href=\"https:\/\/thecodest.co\/es\/blog\/find-your-ideal-stack-for-web-development\/\">web<\/a> escrito en el lenguaje de programaci\u00f3n <strong>Ruby<\/strong> lenguaje de programaci\u00f3n. <strong>Pub\/Sub<\/strong> es un nombre abreviado de los patrones de dise\u00f1o de software denominados <b>Publicar-suscribir<\/b>. Voy a explicar c\u00f3mo la comunicaci\u00f3n entre los componentes de software en Rails podr\u00eda ser manejado por Pub \/ Sub.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u00bfQu\u00e9 es Pub\/sub?<\/h2>\n\n\n\n<p><strong>Pub\/sub<\/strong> es un patr\u00f3n de dise\u00f1o de software que proporciona comunicaci\u00f3n de servicio a servicio. Servicio<br>implica uno de los dos papeles: editor (quien produce) o receptor (quien consume). \u00bfCu\u00e1l es<br>producido para ser consumido se determina como un evento o un mensaje o una notificaci\u00f3n. En el<br>En el contexto de este art\u00edculo, se utilizan indistintamente para referirse a lo mismo.<br>El servicio que produce no sabe qui\u00e9n consume. El servicio que consume no<br>conocer el origen del mensaje. Pueden permanecer desconocidos entre s\u00ed. Es diferente de<br>colas de mensajes, en las que el componente que env\u00eda el mensaje suele conocer su destino<br>- Este estilo de mensajer\u00eda permite enviar mensajes a cualquier lugar. Este mecanismo es un n\u00facleo<br>de <strong>Pub\/sub<\/strong> y significa que est\u00e1n desacoplados.<\/p>\n\n\n\n<p>Para expresar sus intereses mutuos, deben compartir un entendimiento com\u00fan. Por tanto,<br>ambos roles tienen impl\u00edcito un mecanismo del stick donde el productor de un mensaje y el<br>consumidor del mensaje se re\u00fanen. Este mecanismo se denomina asunto, suscripci\u00f3n o tema. Es<br>responsable de categorizar los mensajes a los sujetos, es esencialmente un filtro de mensajes sin estado.<br>Los temas act\u00faan como emisoras. Un editor produce el mensaje para el tema,<br>los abonados reciben inmediatamente el mensaje del tema. Debido al desacoplamiento<br>la forma m\u00e1s eficaz de intercambiar mensajes es hacerlo de forma as\u00edncrona.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Rails sin Pub\/Sub<\/h2>\n\n\n\n<p>Por defecto, Rails no tiene sobrecarga de patrones de dise\u00f1o de software para el paso de mensajes entre componentes. Los desarrolladores utilizan el est\u00e1ndar <strong>programaci\u00f3n orientada a objetos<\/strong> (<a href=\"https:\/\/thecodest.co\/es\/dictionary\/object-oriented-programming-oop\/\">OOP<\/a>): pasar par\u00e1metros a funciones, pedir clases sobre valores.<\/p>\n\n\n\n<p>Cuando la aplicaci\u00f3n es poco complicada, podr\u00eda ser suficiente. Cuando la aplicaci\u00f3n crece, por ejemplo, algunas operaciones deben realizarse de forma as\u00edncrona, entonces el <a href=\"https:\/\/thecodest.co\/es\/dictionary\/why-do-projects-fail\/\">proyecto<\/a> necesita una abstracci\u00f3n que resuelva que <a href=\"https:\/\/thecodest.co\/es\/blog\/app-data-collection-security-risks-value-and-types-explored\/\">datos<\/a> flujo de trabajo. En lugar de reinventar la rueda, los desarrolladores pueden implementar <strong>Pub\/sub<\/strong> para suplir esta falta de abstracci\u00f3n.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Ventajas de Pub\/Sub con Rails<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Evite las devoluciones de llamada de registros activos.<\/li>\n\n\n\n<li>Al a\u00f1adir el procesamiento paralelo as\u00edncrono a un sistema, el rendimiento, la fiabilidad y el <a href=\"https:\/\/thecodest.co\/es\/blog\/difference-between-elasticity-and-scalability-in-cloud-computing\/\">escalabilidad<\/a> se mejoran.<\/li>\n\n\n\n<li>Los mensajes pueden difundirse de forma as\u00edncrona a distintas partes del sistema.<\/li>\n\n\n\n<li>Permite emitir mensajes de forma as\u00edncrona a diferentes partes de un sistema.<\/li>\n\n\n\n<li>Desacoplamiento: a\u00f1adir o cambiar una funcionalidad no afectar\u00e1 a nada porque Pub\/Sub<br>te permite modificar c\u00f3mo interact\u00faa todo.<\/li>\n\n\n\n<li>El consumidor de mensajes ya no tendr\u00e1 que comprobar peri\u00f3dicamente si hay actualizaciones o nuevas<br>informaci\u00f3n. Reduce la latencia de entrega que puede ser especialmente problem\u00e1tica en sistemas<br>sin tolerancia a los retrasos.<\/li>\n\n\n\n<li>No hay l\u00edmite para el n\u00famero de abonados que puede manejar el sistema porque puede cambiar,<br>actualizarse, multiplicarse o desaparecer en cualquier momento.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Contras de Pub\/Sub con Rails<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>La principal desventaja de los sistemas Pub\/sub es que desvinculan el editor de los usuarios.<br>abonado.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Rails Pub\/Sub introducir<\/h2>\n\n\n\n<p>Los ejemplos de c\u00f3digo fuente en Rails se escribieron utilizando la librer\u00eda<br><a href=\"https:\/\/github.com\/stevo\/pubsub_on_rails\" rel=\"nofollow\">Pub\/Sub en Rails<\/a> (en la nomenclatura de Ruby, una biblioteca se llama gema): Encontrar\u00e1s m\u00e1s detalles en el readme de la gema. La implementaci\u00f3n se compone de m\u00f3dulos:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Dominio,<\/li>\n\n\n\n<li>Evento,<\/li>\n\n\n\n<li>Controlador de eventos,<\/li>\n\n\n\n<li>Editor del evento,<\/li>\n\n\n\n<li>Suscripci\u00f3n.<\/li>\n<\/ol>\n\n\n\n<h3 class=\"wp-block-heading\">Dominio<\/h3>\n\n\n\n<p>Describe la l\u00f3gica de negocio con el fin de proporcionar contexto para Pub\/Sub y, por lo tanto, hacer limpio <a href=\"https:\/\/thecodest.co\/es\/dictionary\/what-is-code-refactoring\/\">c\u00f3digo<\/a>.<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code lang=\"ruby\" class=\"language-ruby\"> m\u00f3dulo Notificaciones\n   extend PubSub::Dominio\n end<\/code><\/pre>\n\n\n\n<pre class=\"wp-block-code\"><code lang=\"ruby\" class=\"language-ruby\"> m\u00f3dulo Reports\n   extend PubSub::Dominio\n end\n\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">Evento<\/h3>\n\n\n\n<p>Es una clase que describe lo sucedido. Declara el nombre de la clase como auto-descriptivo con lo sucedido como sea posible, por ejemplo: cancelado, cambiado, creado, destruido, enviado, actualizado. Los nombres de eventos pueden ser como ProfitAndLossStatementCreatedEvent, que significa que un estado financiero fue creado.<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code lang=\"ruby\" class=\"language-ruby\"> clase Reports::ProfitAndLossStatementCreatedEvent &lt; PubSub::DomainEvent\n   atributo :profit_and_loss_statement_id, Types::Strict::Integer\n fin<\/code><\/pre>\n\n\n\n<p><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Editor del evento<\/h3>\n\n\n\n<p>Clase capaz de emitir eventos. El ejemplo muestra la creaci\u00f3n de un informe de servicio. Cuando el informe se ha creado correctamente, emite el evento de creaci\u00f3n de dicho informe.<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code lang=\"ruby\" class=\"language-ruby\">clase Reports::ProfitAndLossStatementService\n   include PubSub::Emit\n    def ejecutar\n     emit(:informe_estado_de_ganancias_y_p\u00e9rdidas_creado, estado_de_ganancias_y_p\u00e9rdidas_id: id) if result.ok?\n   end\n end<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">Controlador de eventos<\/h3>\n\n\n\n<p>Esta clase debe ejecutarse en respuesta a la gesti\u00f3n de un evento.<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code lang=\"ruby\" class=\"language-ruby\">m\u00f3dulo Notificaciones\n class ReportsProfitAndLossStatementCreatedHandler &lt; PubSub::DomainEventHandler\n   def call\n     ReportMailer.estado_ganancias_y_p\u00e9rdidas(estado_ganancias_y_p\u00e9rdidas).deliver_now\n   end\n\n   privado\n\n   def declaraci\u00f3n_de_ganancias_y_p\u00e9rdidas\n     ProfitAndLossStatement.find(event_data.profit_and_loss_statement_id)\n   end\n end\nend<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">Suscripci\u00f3n<\/h3>\n\n\n\n<p>Los eventos se vinculan a sus gestores mediante suscripciones.<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code lang=\"yaml\" class=\"language-yaml\">notificaciones:\n reports__profit_and_loss_statement_created: async<\/code><\/pre>\n\n\n\n<p><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Ejemplos de casos de uso:<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Funci\u00f3n \"Seguir\" en las redes sociales,<\/li>\n\n\n\n<li>Internet de los objetos,<\/li>\n\n\n\n<li>Correo,<\/li>\n\n\n\n<li>Notificaci\u00f3n sobre los archivos generados.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Patrones similares<\/h2>\n\n\n\n<ol class=\"wp-block-list\">\n<li><b>EventBus<\/b> - pueden enviar eventos a EventBus sin saber qui\u00e9n los recoger\u00e1 o cu\u00e1ntos encuestados lo har\u00e1n. <a href=\"https:\/\/thecodest.co\/es\/blog\/react-development-all-you-have-to-know\/\">reaccionar<\/a>,<\/li>\n\n\n\n<li><b>Observador<\/b> - el sujeto mantiene una lista de dependientes, llamados observadores, y les notifica cada vez que cambia su estado,<\/li>\n\n\n\n<li><b>Puesta en com\u00fan<\/b> - al sondear, los clientes preguntan peri\u00f3dicamente al sistema si hay nuevos eventos o datos.<\/li>\n<\/ol>\n\n\n\n<h2 class=\"wp-block-heading\">Gemas<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\n<p><a href=\"https:\/\/github.com\/edisonywh\/rocketman\" rel=\"nofollow\">https:\/\/github.com\/edisonywh\/rocketman<\/a><\/p>\n<\/li>\n\n\n\n<li>\n<p><a href=\"https:\/\/github.com\/krisleech\/wisper\" rel=\"nofollow\">https:\/\/github.com\/krisleech\/wisper<\/a><\/p>\n<\/li>\n\n\n\n<li>\n<p><a href=\"https:\/\/github.com\/stevo\/pubsub_on_rails\" rel=\"nofollow\">https:\/\/github.com\/stevo\/pubsub<em>en<\/em>ra\u00edles<\/a><\/p>\n<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Resumen<\/h2>\n\n\n\n<p>Pub\/sub no es un enfoque com\u00fan en Ruby in Rails. Tal y como se introduce en el art\u00edculo, este patr\u00f3n puede aportar muchos beneficios al proyecto: puede hacer que el c\u00f3digo sea limpio, desacoplar servicios y hacerlos f\u00e1cilmente escalables.<\/p>\n\n\n\n<figure class=\"wp-block-image\"><a href=\"https:\/\/thecodest.co\/contact\"><img decoding=\"async\" src=\"\/app\/uploads\/2024\/05\/interested_in_cooperation_.png\" alt=\"bandera de cooperaci\u00f3n\"\/><\/a><\/figure>","protected":false},"excerpt":{"rendered":"<p>Pub\/Sub puede aportar muchos beneficios al proyecto - puede hacer que el c\u00f3digo sea limpio, desacoplar servicios y hacerlos f\u00e1cilmente escalables. \u00a1Obt\u00e9n m\u00e1s informaci\u00f3n sobre Pub\/Sub en el siguiente art\u00edculo y sube de nivel tu proyecto!<\/p>","protected":false},"author":2,"featured_media":3428,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"categories":[8],"tags":[12],"class_list":["post-3427","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-software-development","tag-it"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.3 (Yoast SEO v27.3) - 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