Synthetic event stream · Explicit bounded polling
Realtime updates
Practise refresh, ordering, reconnect, and controlled-fault assertions with a scripted sequence. This Lab uses bounded HTTP polling only: every update starts from a button click and no background worker, WebSocket, or SSE connection is started.
Sequence control
Run one deterministic update
You can also select a scenario with?scenario=refresh, ordering,reconnect, or fault.
Preparing the deterministic realtime fixture…
Assertion-ready event log
Ordered updates
Events are rendered in canonical sequence order even when a scenario declares a different received order.
| Sequence | Received order | Event | Visible result |
|---|---|---|---|
| Run a scripted update to populate this log. | |||