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(dev mode) start backend without waiting for page compilation (#2549)

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* start backend without waiting for page compilation

* remove prints for measuring time saved

* pin tighter on uvicorn
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jackie-pc 2024-02-08 12:13:39 -08:00 committed by GitHub
parent 7fb9747fa7
commit a4c8c72177
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3 changed files with 532 additions and 508 deletions
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1023
poetry.lock generated
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5
pyproject.toml
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@ -40,10 +40,7 @@ redis = "^4.3.5"
rich = "^13.0.0" rich = "^13.0.0"
sqlmodel = "^0.0.14" sqlmodel = "^0.0.14"
typer = ">=0.4.2,<1" typer = ">=0.4.2,<1"
uvicorn = [ uvicorn = "^0.27.0"
{version = "^0.24.0", python = ">=3.12"},
{version = "^0.20.0", python = "<3.12"},
]
watchdog = "^2.3.1" watchdog = "^2.3.1"
watchfiles = "^0.19.0" watchfiles = "^0.19.0"
starlette-admin = "^0.9.0" starlette-admin = "^0.9.0"

12
reflex/app_module_for_backend.py
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@ -1,13 +1,21 @@
"""Shims the real reflex app module for running backend server (uvicorn or gunicorn). """Shims the real reflex app module for running backend server (uvicorn or gunicorn).
Only the app attribute is explicitly exposed. Only the app attribute is explicitly exposed.
""" """
from concurrent.futures import ThreadPoolExecutor
from reflex import constants from reflex import constants
from reflex.utils.prerequisites import get_compiled_app from reflex.utils.prerequisites import get_app, get_compiled_app
if "app" != constants.CompileVars.APP: if "app" != constants.CompileVars.APP:
raise AssertionError("unexpected variable name for 'app'") raise AssertionError("unexpected variable name for 'app'")
app = getattr(get_compiled_app(), constants.CompileVars.APP)
app_module = get_app(reload=False)
app = getattr(app_module, constants.CompileVars.APP)
ThreadPoolExecutor(max_workers=1).submit(app.compile_)
# ensure only "app" is exposed. # ensure only "app" is exposed.
del app_module
del get_app
del get_compiled_app del get_compiled_app
del constants del constants
del ThreadPoolExecutor