Sending messages to all other app instances

[Patrick_Salo]

@Greg_O Had a solution a year or so ago that you might be able to adapt, depending upon your situation (second paragraph of his reply):

@Greg_O

As for the first problem, you could make your admin function write a file to disc, let’s say a json string which contains the reason and the time when the update will be applied. Then add a Timer to the App class which looks for the file once a minute. If it finds it, it notifies all of the users that the app is going down, why and when. In app.opening you delete the file if it exists.

Original Reply

The essence being that instead of pushing a message to the active sessions, they regularly check in and poll/pull updates.