{"id":1502,"date":"2018-09-22T07:28:39","date_gmt":"2018-09-22T05:28:39","guid":{"rendered":"https:\/\/voxxeddays.com\/microservices2019\/?p=1502"},"modified":"2018-09-22T07:28:39","modified_gmt":"2018-09-22T05:28:39","slug":"cedric-vidal-and-nicolas-romanetti-on-kafka-stream-and-bpmn","status":"publish","type":"post","link":"https:\/\/voxxeddays.com\/microservices\/2018\/09\/22\/cedric-vidal-and-nicolas-romanetti-on-kafka-stream-and-bpmn\/","title":{"rendered":"C\u00e9dric Vidal and Nicolas Romanetti on Kafka Stream and BPMN"},"content":{"rendered":"<h3>Hi C\u00e9dric, Hi Nicolas, tell us who you are and what lead you into microservices?<\/h3>\n<p>Hi! My name is C\u00e9dric Vidal and I\u2019ve been passionate about software since I got my first Macintosh SE in 1987, I was 7 and never stopped since. I\u2019ve been designing numerous server architecture styles since my first monolith TCP server in 2001, searching for the right balance of agility and simplicity.<\/p>\n<p>I started working with Quicksign first as a consultant then as its CTO in January 2014&#8211; that\u2019s when I took on the challenge to migrate the current legacy application to a microservices platform. I had experimented various CQRS ideas on a few previous projects before coming up with our CQRS ES and BPMN microservices architecture. However, building at such a large scale within Quicksign was quite a ride!<\/p>\n<p>Hi, my name is Nicolas Romanetti and I am a Software Engineer with more than 20 years of experience and I currently work as the Delivery Manager on QuickSign\u2019s new platform which C\u00e9dric just described.<\/p>\n<p>I remember pretty well the first time I created a \u201cmicroservice\u201d, it was in 1999 in Mountain View, the application I was working on at that time (Corba based ahaha) needed some kind of flexible external extension, I came up with a simple server\/http\/servlet \u201cmicroservice\u201d that the application could easily invoke. Ok it was rudimentary, but it was a blast!<\/p>\n<h3>What will you be talking about at Voxxed Days Microservices?<\/h3>\n<p>We\u2019ll talk about how building a microservices platform at scale is a great challenge. Before going for it, you should be aware of potential pitfalls, how to avoid them and whether it matches your business case.<\/p>\n<p>We\u2019ll share why the microservices approach was relevant for us, how we leveraged Kafka as the backbone of our architecture and BPMN as the heart to orchestrate our microservices and Kafka Streams to implement the CQRS-ES architectural pattern.<\/p>\n<p>We believe these choices will lay the strongest foundation for QuickSign\u2019s growth in the coming years, we\u2019ll explain why &amp; why it could be relevant for you.<\/p>\n<h3>When we see BPMN written somewhere we always think of a huge monolith with business rules so complex that we need a BPMN. It looks like you\u2019ve revamped BPMN to a newer look. Why choosing a BPMN in your architecture?<\/h3>\n<p>Indeed, BPMN can be quite intimidating at first, but for QuickSign it made sense since we have the proper use cases and incentives :<\/p>\n<ul>\n<li>Managing long running workflows&#8211;a typical digital onboarding case can last from less than an hour to up to 3 months&#8211;which only allow certain actions depending on the state you\u2019re in at any given point in time<\/li>\n<li>Dealing with workflows that are specific to each tenant and onboarding product which have their own ownership, lifecycle and versioning independent of the core platform<\/li>\n<li>Being able to conceive and communicate the workflow visually helps to align business objectives with what\u2019s being developed<\/li>\n<\/ul>\n<p>BPMN has been traditionally integrated as a monolith and advocated as incompatible with microservices architectures but we believe the contrary: the BPMN engine can simply be used as a <a href=\"https:\/\/microservices.io\/patterns\/data\/saga.html\">Saga pattern<\/a> implementation. It contains long running state and orchestrates microservices.<\/p>\n<p>We wanted BPMN to be fun and easy to work with on a daily basis, not just some irrealist architectural idealism. The tooling has changed a lot and modern products such as Camunda make BPMN pleasant to use. The ease of use of the modeler, the extensibility of the core engine, as well as the clarity of the source code (except for the core process virtual machine which is complex) and the excellent Spring integration made us feel right at home and confident that we would be able to commit to BPMN on the long run.<\/p>\n<h3>Good, see you soon then<\/h3>\n<p>Yes, we\u2019re looking forward to meeting passionate people! Feel free to come and discuss with us, we love questions &amp; feedbacks. We also have interesting open positions at QuickSign in case what we do tickles your brain.<\/p>\n<p><strong>#quicksign #kafka #camunda<\/strong><\/p>\n<p>Twitter: <a href=\"https:\/\/twitter.com\/cedricvidal\">https:\/\/twitter.com\/cedricvidal<\/a><br \/>\nLinkedin: <a href=\"https:\/\/www.linkedin.com\/in\/cedricvidal\">https:\/\/www.linkedin.com\/in\/cedricvidal<\/a><br \/>\nGitHub: <a href=\"https:\/\/github.com\/cedricvidal\">https:\/\/github.com\/cedricvidal<\/a><br \/>\nTwitter: <a href=\"https:\/\/twitter.com\/nromanetti\">https:\/\/twitter.com\/nromanetti<\/a><br \/>\nLinkedIn: <a href=\"https:\/\/www.linkedin.com\/in\/nromanetti\">https:\/\/www.linkedin.com\/in\/nromanetti<\/a><br \/>\nGitHub: <a href=\"https:\/\/github.com\/nromanetti\">https:\/\/github.com\/nromanetti<\/a><br \/>\nLinkedIn: <a href=\"https:\/\/www.linkedin.com\/company\/quicksign\">https:\/\/www.linkedin.com\/company\/quicksign<\/a><br \/>\nTwitter: <a href=\"https:\/\/twitter.com\/quicksign_sas\">https:\/\/twitter.com\/quicksign_sas<\/a><\/p>\n<h3><a href=\"https:\/\/vxdms2018.confinabox.com\/talks\/conf\">Check the other conferences<\/a><\/h3>\n","protected":false},"excerpt":{"rendered":"<p>Hi C\u00e9dric, Hi Nicolas, tell us who you are and what lead you into microservices? Hi! My name is C\u00e9dric Vidal and I\u2019ve been passionate about software since I got my first Macintosh SE in 1987, I was 7 and never stopped since. I\u2019ve been designing numerous server architecture styles since my first monolith TCP [&hellip;]<\/p>\n","protected":false},"author":1301,"featured_media":1505,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[12],"tags":[73,72,71],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v15.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>C\u00e9dric Vidal and Nicolas Romanetti on Kafka Stream and BPMN : Voxxed Days Microservices 2019<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/voxxeddays.com\/microservices\/2018\/09\/22\/cedric-vidal-and-nicolas-romanetti-on-kafka-stream-and-bpmn\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"C\u00e9dric Vidal and Nicolas Romanetti on Kafka Stream and BPMN : Voxxed Days Microservices 2019\" \/>\n<meta property=\"og:description\" content=\"Hi C\u00e9dric, Hi Nicolas, tell us who you are and what lead you into microservices? Hi! My name is C\u00e9dric Vidal and I\u2019ve been passionate about software since I got my first Macintosh SE in 1987, I was 7 and never stopped since. I\u2019ve been designing numerous server architecture styles since my first monolith TCP [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/voxxeddays.com\/microservices\/2018\/09\/22\/cedric-vidal-and-nicolas-romanetti-on-kafka-stream-and-bpmn\/\" \/>\n<meta property=\"og:site_name\" content=\"Voxxed Days Microservices 2019\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/vxdmicroservice\/\" \/>\n<meta property=\"article:published_time\" content=\"2018-09-22T05:28:39+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/voxxeddays.com\/microservices\/wp-content\/uploads\/sites\/54\/2018\/09\/CecricVidalNicolasRomanettiBanner.png\" \/>\n\t<meta property=\"og:image:width\" content=\"1024\" \/>\n\t<meta property=\"og:image:height\" content=\"513\" \/>\n<meta property=\"fb:app_id\" content=\"vxdmicroservice\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@agoncal\" 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