Delivering solution using microservices
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Microservices are small, autonomous services that are loosely coupled and help address challenges like rapidly changing requirements. A notification microservice is implemented using a pub/sub model with Kafka and stores client-specific data separately. This microservice architecture allows for technology heterogeneity, resilience, easier scaling and deployment compared to a monolithic application structure. The notification microservice reads templates, sends emails through SendGrid and publishes events to a Kafka topic.
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Delivering solution using microservices
- 2. What is Microservice When you start working in IT, very soon you realise technologies are changing more rapidly. Key fundamental shifts in software developments like Agile methodology, Domain-driven design, continuous delivery, PAAS, automation, system for scale, small teams are helping to build better software that react fast to customers constantly changing business requirements.
- 3. What is Microservice Microservices are emerged from this world. These are small autonomous services that are loosely coupled.
- 4. Challenges • In software domain, requirements change more rapidly compared to other domains. • Most of time, one-size fit solution won’t work as customers are trying to innovate and deliver differentiated experience to their end users. • Monolithic applications are creating inertia to change and moving fast.
- 5. Solution • To meet these challenges Patterns7 build technology framework in which the right systems can emerge and continue to grow as we learn more. • If you planning to break monolithic app, good idea to start by separating related code in packages.
- 7. Solution Notification service is build for high cohesion with it’s own database. If we need to add new client, simply add client specific data like “From Email”, “Twirl Templates” etc. in the Notification Database.
- 8. Key Benefits • Technology Heterogeneity • Resilience • Scaling • Ease of Deployment
- 9. Implementation details • Pub val jsonObj: JSONObject = new JSONObject(stockAsJson) jsonObj.put("Event_Type", GlobalVariables.ADD_STAFF_EVENT) jsonObj.put("App_Key", GlobalVariables.WIP_APP_KEY) NotificationKafkaProducer.produceToKafka(jsonObj.toString ())
- 10. Implementation details • Sub val consumer = new KafkaConsumer[String, String](props) consumer.subscribe(util.Collections.singletonList(GlobalVari ables.TOPIC))
- 11. Implementation details • Reading Twirl templates val htmlMessageBody = com.gta.emails.html.newUserSignup.render(request.name, request.email, gtawebUrl, gtaapiUrl)
- 12. Implementation details • Send email through Sendgrid val sendgridAdmin = new SendGrid(GlobalVariables.SENDGRID_API_KEY) val emailToAdmin = new SendGrid.Email emailToAdmin.addTo(request.email) emailToAdmin.setFrom(fromEmailId) emailToAdmin.setSubject("New user sign up on GTA") emailToAdmin.setHtml(htmlMessageBodyForClient) sendgridAdmin.send(email)
- 13. Get in touch !! Recently Patterns7 Technologies migrated architecture from monolithic to microservice based architecture. By embracing fine-grained, microservice architecture, it’s helping to deliver software faster, embrace newer technologies and give cost benefit to our clients. Welcome your views and happy to help on any queries info@patterns7tech.com Website: www.patterns7tech.com