Vaadin Push not working (404)

Vaadin 6 / 7 / 8
1

Hi,
I have a issue with push notification (Liferay 6.2/Wildfly 10). When I add @Push(transport=Transport.WEBSOCKET_XHR), on servlet load in chrome inspector I get:

WebSocket connection to ‘ws://pippo.it:7040/group/guest/filedashboard?p_p_id=FileDashboard_WAR_PIPPO_CustomerManagement_INSTANCE_LhzB96Pez7wZ&p_p_lifecycle=2&p_p_state=normal&p_p_mode=view&p_p_resource_id=APP&p_p_cacheability=cacheLevelPage&p_p_col_id=column-1&p_p_col_pos=1&p_p_col_count=3&_FileDashboard_WAR_PIPPO_CustomerManagement_INSTANCE_LhzB96Pez7wZ_v-resourcePath=%252FPUSH&v-uiId=0&v-pushId=86496d2c-f245-4c93-a39c-379fbe9d4dd0&X-Atmosphere-tracking-id=0&X-Atmosphere-Framework=2.3.2.vaadin1-javascript&X-Atmosphere-Transport=websocket&X-Atmosphere-TrackMessageSize=true&Content-Type=application/json;%20charset=UTF-8&X-atmo-protocol=true’ failed: Error during WebSocket handshake: Unexpected response code: 404

vaadinPush.debug.js?v=8.4.1:3259 Websocket closed, reason: Connection was closed abnormally (that is, with no close frame being sent). - wasClean: false

I’ve added in Wildfly Server:
- vaadin-push.jar and atmosphere-framework.jar in WEB-INF/lib
- extracted VAADIN folder from vaadin-push.jar in html/VAADIN

and vaadin-push and atmosphere-runtime in my pom.xml

Any suggestion?
Thx!

2

Push is not supported in portlet environments such as Liferay, only with servlet deployments. There is an experimental addon for push in Liferay which might help: https://vaadin.com/directory/component/portal-push-add-on

3

Thanks Artur! It works perfectly on Vaadin 8.4.1/Liferay 6.2 GA5.
I’ve seen addon exists since 2/3 years, it’s pretty stable and can be deployed in a production environment?

Ps You’ve save me a lot of time, you’ve a beer paid in Rome :slight_smile:

4

Nice to hear it works. I am not using it myself but there are no issues reported except that Liferay 7 support would be nice, and there should be no fundamental problems with the approach. Just keep in mind that it will open a separate push connnection for each portlet on the same page.

5

Dear all,
it is not clear how to use the addon in Vaadin 8 and Liferay 7, using OSGi.
Do you have any suggestion?
Regards