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Mode / Multicast

Launch the server in multicast mode to synchronize browser state across a user's clients. Open /demo in multiple browsers and watch them synchronize in realtime.

from h2o_wave import main, app, Q, ui, pack

@app('/demo', mode='multicast')async def serve(q: Q):    count = q.user.count or 0    if 'increment' in q.args:        count += 1        q.user.count = count
    items = pack([ui.button(name='increment', label=f'Count={count}')])
    if count > 0:        form =['example']        form.items = items    else:['example'] = ui.form_card(box='1 1 12 10', items=items)

Tags: โ€‚mode โ€‚multicast