Is there a way to know which user is the sender of the application? In order to create for example a game where the sender is the first player.

There is no way to get selfAddr of the app sender. It is only possible to get selfAddr of an update, so the first player has to send at least one update.

Somewhat related: On mobile you can open a webxdc app before sending it, you can already configure it there. This is useful for polls for example. Desktop does not have this feature yet, but there is an issue for it.

this is needed for some mini-apps, for example having a webxdc.senderId (or webxdc.senderAddr) would be awesome and open several possibilities like having someone act as admin inside an app, or offer different view depending on who is the sender (ex. in the poll app or the confetti app you want the …

Delta Chat

Find sender of app?

Mini Apps

webxdc-api-future, development

WofWca January 13, 2026, 7:19am 4

Add API to be able to have synchronized random seed per instance In-Chat Apps

some webxdc apps have a need to have some random seed per instance, for example Reactle game (wordle clon) would benefit from having some unique seed per instance to having different words of the day in every chat, so you can play the game with different groups of friends/family the problem why it is not feasible to do the seed generation in one of the users is side, is because then it becomes a synchronization problem, and the seed could be different from one user to another, it needs to be a …

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