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Merged
jourdain merged 3 commits into from
Dec 13, 2025
Merged

docs(life-cycle): Document LifeCycle.on_error #835

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7a31717
docs(readme): Document on_error, add on_server_start
snacksbro Dec 11, 2025
ba3fc81
chore(readme): Typo
snacksbro Dec 11, 2025
fd735a3
chore(example): Add LifeCycle.on_error to example
snacksbro Dec 11, 2025
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3 changes: 2 additions & 1 deletion README.rst
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Original file line number Diff line number Diff line change
Expand Up @@ -120,9 +120,10 @@ and are prefixed with `on_*`.
* **on_server_ready** : All protocols initialized and available for client to connect
* **on_client_connected** : Connection established to server
* **on_client_exited** : Linked to browser "beforeunload" event
* **on_server_start** : Trame is starting its event loop
* **on_server_exited** : Trame is exiting its event loop

* **on_server_reload** : If callback registered it is used for reloading server side modules
* **on_error** : A JavaScript error has occurred in the client, can be used to do something on the server when this occurs


Reserved state entries
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5 changes: 5 additions & 0 deletions examples/validation/decorators/default_class_decorator.py
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Expand Up @@ -34,6 +34,10 @@ def one_slider(self, slider_value1, **kwargs):
def on_ready(self, *args, **kwargs):
print("on_ready")

@life_cycle.on_error
def on_error(self, message):
print(f"A JS error occured: {message}")

def ui(self):
with SinglePageLayout(self.server) as layout:
with layout.toolbar:
Expand All @@ -47,6 +51,7 @@ def ui(self):
vuetify.VBtn("trigger", click="trigger('exec')")
vuetify.VBtn("method", click=self.method_call)
vuetify.VBtn("ctrl", click=self.ctrl.hello)
vuetify.VBtn("JS error", click="undefined_func()")


app = App()
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