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#!/usr/bin/env python3
"""Example for aiohttp.web basic server
"""
import asyncio
import textwrap
from aiohttp.web import Application, Response, StreamResponse
def intro(request):
txt = textwrap.dedent("""\
Type {url}/hello/John {url}/simple or {url}/change_body
in browser url bar
""").format(url='127.0.0.1:8080')
binary = txt.encode('utf8')
resp = StreamResponse()
resp.content_length = len(binary)
resp.start(request)
resp.write(binary)
return resp
def simple(request):
return Response(body=b'Simple answer')
def change_body(request):
resp = Response()
resp.body = b"Body changed"
return resp
@asyncio.coroutine
def hello(request):
resp = StreamResponse()
name = request.match_info.get('name', 'Anonymous')
answer = ('Hello, ' + name).encode('utf8')
resp.content_length = len(answer)
resp.start(request)
resp.write(answer)
yield from resp.write_eof()
return resp
@asyncio.coroutine
def init(loop):
app = Application(loop=loop)
app.router.add_route('GET', '/', intro)
app.router.add_route('GET', '/simple', simple)
app.router.add_route('GET', '/change_body', change_body)
app.router.add_route('GET', '/hello/{name}', hello)
app.router.add_route('GET', '/hello', hello)
handler = app.make_handler()
srv = yield from loop.create_server(handler, '127.0.0.1', 8080)
print("Server started at http://127.0.0.1:8080")
return srv, handler
loop = asyncio.get_event_loop()
srv, handler = loop.run_until_complete(init(loop))
try:
loop.run_forever()
except KeyboardInterrupt:
loop.run_until_complete(handler.finish_connections())
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