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Webinar: Building WebSocket Browser Applications with Spring

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Webinar: Building WebSocket Browser Applications with Spring

· Java Zone
Free Resource

In the complimentary O’Reilly eBook, Migrating to Cloud-Native Application Architectures, Pivotal’s Matt Stine examines the cultural, organizational, and technical changes necessary to migrate traditional monolithic applications and service-oriented architectures to cloud-native architectures.

So, you've written a "Hello world!" WebSocket application or perhaps even a chat sample. You're able to exchange messages even in pre-Servlet 3.1 containers and pre-IE 10 browsers (that don't yet support WebSocket) thanks to the SockJS protocol and Spring's support for it. However a message is a blank page that can have any content. 

Whatever message format you choose, proprietary or standard, both client and server need to understand it as well as distinguish different kinds of messages. You need support for the publish-subscribe pattern central to messaging applications so you can broadcast messages to one or more subscribers. You need to incorporate security, validation, and so on. In short you need to build a real-world application. 

If you're used to web applications (and Spring MVC annotated controllers) you are familiar with the foundation that HTTP provides including URLs (nouns), HTTP methods (verbs), headers, parameters, and others. Imagine building an application without HTTP, just a socket. WebSocket gives you this brand new, exciting capability -- full duplex, two-way communication -- yet you no longer have an application-level protocol. Can an entire application be built around a single Endpoint class processing all messages, assuming a single WebSocket connection between browser and server? Join Rossen Stoyanchev as he demonstrates that, thankfully, the WebSocket protocol has a built-in sub-protocol mechanism.

Europe

Tuesday, October 8 3:00PM GMT Summer Time London, GMT+01:00)

Register https://gopivotal.webex.com/gopivotal/onstage/g.php?t=a&d=667384670

North America

Tuesday, October 8 10:00AM PDT San Francisco, GMT-07:00)

Register https://gopivotal.webex.com/gopivotal/onstage/g.php?t=a&d=660130258

In this complimentary eBook, you will find a migration cookbook, with recipes for decomposing monolithic applications into microservices, implementing fault-tolerant patterns, and performing automated testing of cloud-native services.

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Published at DZone with permission of Pieter Humphrey, DZone MVB. See the original article here.

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