/Python/Django/Django 3 create async rest api

Django 3 create async rest api

import asyncio
import concurrent.futures
import os
import django
from starlette.applications import Starlette
from starlette.responses import Response
from starlette.routing import Route

os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'pjt.settings')
django.setup()

from django_app.xxx import synchronous_func1
from django_app.xxx import synchronous_func2

executor = concurrent.futures.ThreadPoolExecutor(max_workers=2)

async def simple_slow(request):
    """ simple function, that sleeps in an async matter """
    await asyncio.sleep(5)
    return Response('hello world')

async def call_slow_dj_funcs(request):
    """ slow django code will be called in a thread pool """
    loop = asyncio.get_running_loop()
    future_func1 = executor.submit(synchronous_func1)
    func1_result = future_func1.result()
    future_func2 = executor.submit(synchronous_func2)
    func2_result = future_func2.result()
    response_txt = "OK"
    return Response(response_txt, media_type="text/plain")

routes = [
    Route("/simple", endpoint=simple_slow),
    Route("/slow_dj_funcs", endpoint=call_slow_dj_funcs),
]

app = Starlette(debug=True, routes=routes)

Source: stackoverflow.com

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