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RAP application with REST server [message #1844017]

Fri, 27 August 2021 13:58

Magnus Konze

Messages: 13
Registered: November 2014

Junior Member

Hi,

i need to expose a REST API for my application.

Generally i can see two approaches:
- integrating the REST-"stuff" in the current application
- creating a second (non RAP) application (the REST server) which works on the same database

Is the frist approach even valid or should i expect major problems? I've written REST-APIs with Spring Boot in the past, but i'm unsure on how to get it work in a RAP application.

I played around with some tutorials (e.g. https://www.javachinna.com/creating-spring-rest-api-without-using-spring-boot/) but it didnt't work. Even the RAP application didn't work anymore (org.springframework.web.servlet.DispatcherServlet:noHandlerFound(1147) - No mapping found for HTTP request with URI [/MyApp/rwt-resources/311/rap-client.js] in DispatcherServlet with name 'dispatcher').

Any hints how to approach this? Is the separate application the way to go?

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Re: RAP application with REST server [message #1844020 is a reply to message #1844017]

Fri, 27 August 2021 15:13

Dmitry Dukhov

Messages: 192
Registered: February 2013

Senior Member

I preferred integrate https://sparkjava.com/ inside RAP application for Rest functions. This is light micro-web server and very convenient.

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Re: RAP application with REST server [message #1844052 is a reply to message #1844020]

Mon, 30 August 2021 08:33

Magnus Konze

Messages: 13
Registered: November 2014

Junior Member

Thanks for the advice. Great looking framework, got it working in about an hour.

When deploying in a tomcat server you have to consider some extras, but nothing special: https://reactivedu.com/blog/deploying-spark-framework-app-to-tomcat/

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Re: RAP application with REST server [message #1844081 is a reply to message #1844052]

Tue, 31 August 2021 14:57

Dmitry Dukhov

Messages: 192
Registered: February 2013

Senior Member

stupid question but
Why are you integrating Spark with Tomcat? Spark already has a built-in web server (jetty) and doesn't depend on web servers.

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Re: RAP application with REST server [message #1844137 is a reply to message #1844081]

Thu, 02 September 2021 13:54

Magnus Konze

Messages: 13
Registered: November 2014

Junior Member

My whole RAP-application is deployed in one war-file in a tomcat. So, when integrating Spark in the application there is no need for the built-in server.

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