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Allow custom toast message in production mode by adding optional connection_error_message arg in rx.config #6060

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Allow custom toast message in production mode by adding optional connection_error_message arg in rx.config #6060

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2d14f28
Add connection_error_message to configuration for custom connection e…
JoaquinVeraOrtega Dec 19, 2025
5993ed4
refactor(connection_toaster): extract duplicated dev mode check to va…
JoaquinVeraOrtega Dec 20, 2025
9fefbc8
Remove REFLEX_ENV_MODE checks from ConnectionToaster
JoaquinVeraOrtega Jan 8, 2026
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7 changes: 6 additions & 1 deletion reflex/components/core/banner.py
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Original file line number Diff line number Diff line change
Expand Up @@ -16,6 +16,7 @@
from reflex.components.radix.themes.layout.flex import Flex
from reflex.components.radix.themes.typography.text import Text
from reflex.components.sonner.toast import ToastProps, toast_ref
from reflex.config import get_config
from reflex.constants import Dirs, Hooks, Imports
from reflex.constants.compiler import CompileVars
from reflex.environment import environment
Expand Down Expand Up @@ -100,9 +101,11 @@ def add_hooks(self) -> list[str | Var]:
"""
toast_id = "websocket-error"
target_url = WebsocketTargetURL.create()
config = get_config()
props = ToastProps(
description=LiteralVar.create(
f"Check if server is reachable at {target_url}",
config.connection_error_message
or f"Check if server is reachable at {target_url}"
),
close_button=True,
duration=120000,
Expand Down Expand Up @@ -135,6 +138,8 @@ def add_hooks(self) -> list[str | Var]:
else:
loading_message = Var.create(
f"Cannot connect to server: {connection_error}."
if not config.connection_error_message
else ""
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@adhami3310 adhami3310 Jan 8, 2026

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shouldn't it be connection error message?

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@JoaquinVeraOrtega JoaquinVeraOrtega Jan 9, 2026

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That would duplicate the error message. The connection error toast has two parts, title and description, but since I'm setting one error message in rxconfig I figured just pass the message in the title and leave the description empty.

)
toast_var = Var(
f"toast?.error({loading_message!s}, {{...toast_props, onDismiss: () => setUserDismissed(true)}},)"
Expand Down
3 changes: 3 additions & 0 deletions reflex/config.py
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Expand Up @@ -262,6 +262,9 @@ class BaseConfig:

_prefixes: ClassVar[list[str]] = ["REFLEX_"]

# The message to display in the frontend when a connection error occurs.
connection_error_message: str | None = None


_PLUGINS_ENABLED_BY_DEFAULT = [
SitemapPlugin,
Expand Down