Appian WebSockets

RE: Appian WebSockets

srikrishnar — Tue, 07 Jul 2020 02:06:54 GMT

Is there a way, messages push from Appian Server to specific User Appian UI automatically without user interaction? Example Server automatically pushes messages to Client / Web pages automatically using WebSockets without user intervention in Java or .NET programming

RE: Appian WebSockets

Philip Snyman — Wed, 12 Jun 2019 16:30:41 GMT

Yes, the thought crossed my mind. Just haven't had the time to implement.

RE: Appian WebSockets

Jim Schweitzer — Wed, 12 Jun 2019 12:49:30 GMT

It's definitely possible. My company wrote the Pusher component on the App Market. If you're interested in a custom project, feel free to contact me offline.

RE: Appian WebSockets

Antonio Menolascina — Wed, 12 Jun 2019 12:40:40 GMT

Thank you for the info Philip!

Anyway, did you ever try to create a custom plugin in order to provide WebSocket in your Appian applications?

The plugin marketplace contains solutions in order to integrate external real-time communication paid services (e.g. Pusher), so I can assume that there could be a way to create a custom plugin for a custom websocket server application. Is it feasible?

RE: Appian WebSockets

Philip Snyman — Wed, 12 Jun 2019 11:01:58 GMT

The latest release of Appian 19.2 introduced the a!refreshVariable() function allowing the designer to refresh local variables defined under the a!localVariables() function. When used in an interface, the local variable can be refreshed on an interval ( i.e. polling ) or when another local variable is changed. Not quite websockets but works well.

RE: Appian WebSockets

Antonio Menolascina — Wed, 12 Jun 2019 10:49:37 GMT

Are there any updates with regards to this topic?

Is Websocket and real time UI refresh still unavailable in Appian?

Is there a way to implement some kind of workaround?

RE: Appian WebSockets

Philip Snyman — Fri, 20 Oct 2017 05:48:32 GMT

Thanks for your response. The most obvious use case is the update of the number of tasks in the Tasks list on Tempo; as well as updated to the News feed. This is however only applicable to the Appian platform. Other use cases could include realtime updates of dashboards or reports; as well as updates to record related information, i.e. milestones, etc.

RE: Appian WebSockets

Jim Schweitzer — Thu, 19 Oct 2017 19:05:27 GMT

This would be nice, but as it is, all UI changes with Appian SAIL have to be triggered by a user interaction.
It is possible to have an asynchronous workflow using webAPis to start ProcessModels, but this requires breaking the chaining between UI forms.

RE: Appian WebSockets

Tom Ryan — Thu, 19 Oct 2017 08:38:17 GMT

WebSockets are not currently supported in Appian. If you can add some more details regarding your use case, other practitioners may be able to suggest an alternative approach.