python aiohttp into existing event loop












2















I'm testing aiohttp and asyncio. I want the same event loop to have a socket, http server, http client.



I'm using this sample code:



@routes.get('/')
async def hello(request):
return web.Response(text="Hello, world")

app = web.Application()
app.add_routes(routes)
web.run_app(app)


The problem is run_app is blocking. I want to add the http server into an existing event loop, that I create using:



asyncio.get_event_loop()









share|improve this question



























    2















    I'm testing aiohttp and asyncio. I want the same event loop to have a socket, http server, http client.



    I'm using this sample code:



    @routes.get('/')
    async def hello(request):
    return web.Response(text="Hello, world")

    app = web.Application()
    app.add_routes(routes)
    web.run_app(app)


    The problem is run_app is blocking. I want to add the http server into an existing event loop, that I create using:



    asyncio.get_event_loop()









    share|improve this question

























      2












      2








      2








      I'm testing aiohttp and asyncio. I want the same event loop to have a socket, http server, http client.



      I'm using this sample code:



      @routes.get('/')
      async def hello(request):
      return web.Response(text="Hello, world")

      app = web.Application()
      app.add_routes(routes)
      web.run_app(app)


      The problem is run_app is blocking. I want to add the http server into an existing event loop, that I create using:



      asyncio.get_event_loop()









      share|improve this question














      I'm testing aiohttp and asyncio. I want the same event loop to have a socket, http server, http client.



      I'm using this sample code:



      @routes.get('/')
      async def hello(request):
      return web.Response(text="Hello, world")

      app = web.Application()
      app.add_routes(routes)
      web.run_app(app)


      The problem is run_app is blocking. I want to add the http server into an existing event loop, that I create using:



      asyncio.get_event_loop()






      python python-asyncio aiohttp






      share|improve this question













      share|improve this question











      share|improve this question




      share|improve this question










      asked Nov 25 '18 at 8:33









      user3599803user3599803

      92831748




      92831748
























          1 Answer
          1






          active

          oldest

          votes


















          3















          The problem is run_app is blocking. I want to add the http server into an existing event loop




          run_app is just a convenience API. To hook into an existing event loop, you can directly instantiate the AppRunner:



          loop = asyncio.get_event_loop()
          # add stuff to the loop
          ...

          # set up aiohttp - like run_app, but non-blocking
          runner = aiohttp.web.AppRunner(app)
          loop.run_until_complete(runner.setup())
          site = aiohttp.web.TCPSite(runner)
          loop.run_until_complete(site.start())

          # add more stuff to the loop
          ...

          loop.run_forever()





          share|improve this answer
























          • Thanks, any reason why the server wont terminate on SIGINT (pressing CTRL+C)? I'm using windows powershell

            – user3599803
            Nov 25 '18 at 8:48











          • @user3599803 Not using Windows, sorry, but googling possibly reveals it as a long-standing issue in asyncio.

            – user4815162342
            Nov 25 '18 at 9:11






          • 1





            @user3599803 stackoverflow.com/a/37420223/2955584 check this answer for terminating the script in windows machine

            – rsb
            Nov 26 '18 at 11:18











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          1 Answer
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          active

          oldest

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          1 Answer
          1






          active

          oldest

          votes









          active

          oldest

          votes






          active

          oldest

          votes









          3















          The problem is run_app is blocking. I want to add the http server into an existing event loop




          run_app is just a convenience API. To hook into an existing event loop, you can directly instantiate the AppRunner:



          loop = asyncio.get_event_loop()
          # add stuff to the loop
          ...

          # set up aiohttp - like run_app, but non-blocking
          runner = aiohttp.web.AppRunner(app)
          loop.run_until_complete(runner.setup())
          site = aiohttp.web.TCPSite(runner)
          loop.run_until_complete(site.start())

          # add more stuff to the loop
          ...

          loop.run_forever()





          share|improve this answer
























          • Thanks, any reason why the server wont terminate on SIGINT (pressing CTRL+C)? I'm using windows powershell

            – user3599803
            Nov 25 '18 at 8:48











          • @user3599803 Not using Windows, sorry, but googling possibly reveals it as a long-standing issue in asyncio.

            – user4815162342
            Nov 25 '18 at 9:11






          • 1





            @user3599803 stackoverflow.com/a/37420223/2955584 check this answer for terminating the script in windows machine

            – rsb
            Nov 26 '18 at 11:18
















          3















          The problem is run_app is blocking. I want to add the http server into an existing event loop




          run_app is just a convenience API. To hook into an existing event loop, you can directly instantiate the AppRunner:



          loop = asyncio.get_event_loop()
          # add stuff to the loop
          ...

          # set up aiohttp - like run_app, but non-blocking
          runner = aiohttp.web.AppRunner(app)
          loop.run_until_complete(runner.setup())
          site = aiohttp.web.TCPSite(runner)
          loop.run_until_complete(site.start())

          # add more stuff to the loop
          ...

          loop.run_forever()





          share|improve this answer
























          • Thanks, any reason why the server wont terminate on SIGINT (pressing CTRL+C)? I'm using windows powershell

            – user3599803
            Nov 25 '18 at 8:48











          • @user3599803 Not using Windows, sorry, but googling possibly reveals it as a long-standing issue in asyncio.

            – user4815162342
            Nov 25 '18 at 9:11






          • 1





            @user3599803 stackoverflow.com/a/37420223/2955584 check this answer for terminating the script in windows machine

            – rsb
            Nov 26 '18 at 11:18














          3












          3








          3








          The problem is run_app is blocking. I want to add the http server into an existing event loop




          run_app is just a convenience API. To hook into an existing event loop, you can directly instantiate the AppRunner:



          loop = asyncio.get_event_loop()
          # add stuff to the loop
          ...

          # set up aiohttp - like run_app, but non-blocking
          runner = aiohttp.web.AppRunner(app)
          loop.run_until_complete(runner.setup())
          site = aiohttp.web.TCPSite(runner)
          loop.run_until_complete(site.start())

          # add more stuff to the loop
          ...

          loop.run_forever()





          share|improve this answer














          The problem is run_app is blocking. I want to add the http server into an existing event loop




          run_app is just a convenience API. To hook into an existing event loop, you can directly instantiate the AppRunner:



          loop = asyncio.get_event_loop()
          # add stuff to the loop
          ...

          # set up aiohttp - like run_app, but non-blocking
          runner = aiohttp.web.AppRunner(app)
          loop.run_until_complete(runner.setup())
          site = aiohttp.web.TCPSite(runner)
          loop.run_until_complete(site.start())

          # add more stuff to the loop
          ...

          loop.run_forever()






          share|improve this answer












          share|improve this answer



          share|improve this answer










          answered Nov 25 '18 at 8:41









          user4815162342user4815162342

          63.3k594149




          63.3k594149













          • Thanks, any reason why the server wont terminate on SIGINT (pressing CTRL+C)? I'm using windows powershell

            – user3599803
            Nov 25 '18 at 8:48











          • @user3599803 Not using Windows, sorry, but googling possibly reveals it as a long-standing issue in asyncio.

            – user4815162342
            Nov 25 '18 at 9:11






          • 1





            @user3599803 stackoverflow.com/a/37420223/2955584 check this answer for terminating the script in windows machine

            – rsb
            Nov 26 '18 at 11:18



















          • Thanks, any reason why the server wont terminate on SIGINT (pressing CTRL+C)? I'm using windows powershell

            – user3599803
            Nov 25 '18 at 8:48











          • @user3599803 Not using Windows, sorry, but googling possibly reveals it as a long-standing issue in asyncio.

            – user4815162342
            Nov 25 '18 at 9:11






          • 1





            @user3599803 stackoverflow.com/a/37420223/2955584 check this answer for terminating the script in windows machine

            – rsb
            Nov 26 '18 at 11:18

















          Thanks, any reason why the server wont terminate on SIGINT (pressing CTRL+C)? I'm using windows powershell

          – user3599803
          Nov 25 '18 at 8:48





          Thanks, any reason why the server wont terminate on SIGINT (pressing CTRL+C)? I'm using windows powershell

          – user3599803
          Nov 25 '18 at 8:48













          @user3599803 Not using Windows, sorry, but googling possibly reveals it as a long-standing issue in asyncio.

          – user4815162342
          Nov 25 '18 at 9:11





          @user3599803 Not using Windows, sorry, but googling possibly reveals it as a long-standing issue in asyncio.

          – user4815162342
          Nov 25 '18 at 9:11




          1




          1





          @user3599803 stackoverflow.com/a/37420223/2955584 check this answer for terminating the script in windows machine

          – rsb
          Nov 26 '18 at 11:18





          @user3599803 stackoverflow.com/a/37420223/2955584 check this answer for terminating the script in windows machine

          – rsb
          Nov 26 '18 at 11:18




















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