you don't have to move GWT RPC to REST and JSON when you want to move the backend to Spring Boot. GWT RPC is just a servlet which you can register in Spring Boot.
Here are some examples of the standard GWT Demo StockWatcher but implemented using Spring Boot with GWT RPC and REST JSON:
https://github.com/lofidewanto/stockwatcher
(1) This example shows how to integrate the GWT RPC servlet to Spring Boot using @WebServlet: https://github.com/lofidewanto/stockwatcher/blob/master/stockwatcher-springboot-webapp/stockwatcher-springboot-webapp-server/src/main/java/stockwatcher/GreetingServiceImpl.java
(2) This example shows to integrate the GWT RPC servlet to Spring Boot, but I think doesn't work so far. I could take a look if you want to.
https://github.com/lofidewanto/stockwatcher/blob/master/stockwatcher-springboot/stockwatcher-springboot-server/src/main/java/stockwatcher/WebConfig.java
Cheers,
Lofi
Michael Joyner schrieb am Montag, 21. November 2022 um 16:50:29 UTC+1:
Yes! we are using GWT-RPC & currently having a single WAR of near about 500mb, having CLIENT-SHARED-SERVER in a same project.Are you using gwt-RPC ?
You can still have everything in a master parent project that builds the final WAR with all the client JS and SERVER classes in the same war.
You'll need to switch to JSON for data transport.
Is there any drawback of switching to JSON in GWT, such as impact on performance etc.You lose easy polymorphism for models, they will require an extra set of annotations at the very least if you have polymorphism as part of your DTO setup.
You'll need to use something like DominoKit REST.We found one RestyGWT, but not sure about its final impact as we haven't applied it yet. any suggestions...RestyGWT is effectively defunct. Stick with a modern GWT3 compatible approach such as DominoKit.
It would be also be best to split the project into three projects. An API project, a shared code project, and a UI project.
We cannot get why keeping SHARED CODE as a separate project is best. We are not having any library of GWT on server side. So except MODELS, what are the other stuffs we can have in SHARED CODE PROJECT.
In this case SHARED CODE is really just the MODELS and INTERFACES and possible the REST Interface.
If you are using gwt-RPC then IMHO there will need to be a big refactoring change at the very least
This is where we are stuck & looking for the solution with a minimum change and should be stable but unable to figure out yet.
I don't think you can accomplish this with a large project with minimum of change unless the client API calls are fully abstracted away (or can be) so that code could be replaced with a different class.
--On Monday, November 21, 2022 at 7:37:33 PM UTC+5:30 Michael Joyner wrote:
There are a lot of factors to consider.
Are you using gwt-RPC ? You'll need to switch to JSON for data transport.
You'll need to use something like DominoKit REST (https://github.com/DominoKit/domino-rest) for the data transport layer.
It would be also be best to split the project into three projects. An API project, a shared code project, and a UI project.
If you are using gwt-RPC then IMHO there will need to be a big refactoring change at the very least.We are having a huge project already running successfully on GWT.
But for some reasons we are planning to move our backend to SPRING-BOOT keeping front end in GWT.
Is there any way we can do it easily without a big change in our existing application.
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