python aiohttp post send and receive file

client.py

import requests

url = 'http://SERVER_ADDRESS:PORT/sendfile'
files = {'file': open('data.txt', 'r').read()}
requests.post(url, data=files)

server.py

from aiohttp import web

PORT = 8082

async def send_file(request):

	data = await request.post()
	with open('data.txt', 'w') as f:
		f.write(data['file'])
	return web.Response(text='ok',content_type="text/html")

app = web.Application(client_max_size=1024**3)
app.router.add_post('/sendfile', send_file)

web.run_app(app,port=PORT)