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make sure running prod backend only uses backend port #6346

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Merged
adhami3310 merged 1 commit into from
Apr 20, 2026
+16 −5
Merged

make sure running prod backend only uses backend port #6346

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21 changes: 16 additions & 5 deletions reflex/reflex.py
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Original file line number Diff line number Diff line change
Expand Up @@ -338,14 +338,25 @@ def _run(

_run_dev(running_mode, frontend_port, backend_port, backend_host)
else:
port = (
frontend_port or backend_port or config.frontend_port or config.backend_port
)
if running_mode == constants.RunningMode.BACKEND_ONLY:
requested_port = backend_port or config.backend_port
fallback_port = constants.DefaultPorts.BACKEND_PORT
elif running_mode == constants.RunningMode.FRONTEND_ONLY:
requested_port = frontend_port or config.frontend_port
fallback_port = constants.DefaultPorts.FRONTEND_PORT
else:
requested_port = (
frontend_port
or backend_port
or config.frontend_port
or config.backend_port
)
fallback_port = constants.DefaultPorts.FRONTEND_PORT

port = processes.handle_port(
service_name=running_mode.name.lower(),
port=(port or constants.DefaultPorts.FRONTEND_PORT),
auto_increment=port is None,
port=requested_port or fallback_port,
auto_increment=requested_port is None,
)

_run_prod(running_mode, port, backend_host)
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