Implementation of long-polling in asynchronous web framework like twisted or klein












0














I'm relatively new to REST API and web development in general. I'm looking for options for a client GET request to receive data incrementally/streaming until all data is sent with some criterias:




  • Has to be async (need to use twisted/klein as framework), here's only with Flask as reference.

  • Need to render server-side (next.js has option with socket.io in here with react -> which is the frontend I use), I know it's unrelated, but it's nice to have reading materials like that so I can glue/frankensteinize components together.


my model



From the server (python) It has to be yielded from generator object, right? what confusing me is the underlying options/quirks between websocket, long polling, and server-sent-events, not to mention frameworks like autobahn, WAMP and service like pushpin and crossbar.io which I think is overkill for my case.



The reason I'm mentioning them all is to ask for best practice in using them with their many ways of implementation (phew..). It's a bit overwhelming without enough experience.



At the core level (http headers/protocols/curl), what need to be actually set on the client and server given my scenario? And does long polling sounds like the solution? Does async is a good idea?



Reference reading:



What are Long-Polling, Websockets, Server-Sent Events (SSE) and Comet?



My Understanding of HTTP Polling, Long Polling, HTTP Streaming and WebSockets



http://blog.fanout.io/2016/11/21/moving-from-polling-to-long-polling/



https://blog.al4.co.nz/2016/01/streaming-json-with-flask/



TL;DR: Best practice of long polling implementation in asynchronous python webserver.










share|improve this question






















  • Nevow Athena (based on Twisted Web) uses essentially the low-level technique you describe here to provide a high-level bi-directional symmetric RPC system. It's a fairly obscure library, though, and you may have difficulty finding a supporting community for it.
    – Jean-Paul Calderone
    Nov 12 at 12:41










  • Thank you, I'll take a look at it, it's in the documentation the whole time (twisted web), should've looked there first.
    – Ardhi
    Nov 13 at 0:20
















0














I'm relatively new to REST API and web development in general. I'm looking for options for a client GET request to receive data incrementally/streaming until all data is sent with some criterias:




  • Has to be async (need to use twisted/klein as framework), here's only with Flask as reference.

  • Need to render server-side (next.js has option with socket.io in here with react -> which is the frontend I use), I know it's unrelated, but it's nice to have reading materials like that so I can glue/frankensteinize components together.


my model



From the server (python) It has to be yielded from generator object, right? what confusing me is the underlying options/quirks between websocket, long polling, and server-sent-events, not to mention frameworks like autobahn, WAMP and service like pushpin and crossbar.io which I think is overkill for my case.



The reason I'm mentioning them all is to ask for best practice in using them with their many ways of implementation (phew..). It's a bit overwhelming without enough experience.



At the core level (http headers/protocols/curl), what need to be actually set on the client and server given my scenario? And does long polling sounds like the solution? Does async is a good idea?



Reference reading:



What are Long-Polling, Websockets, Server-Sent Events (SSE) and Comet?



My Understanding of HTTP Polling, Long Polling, HTTP Streaming and WebSockets



http://blog.fanout.io/2016/11/21/moving-from-polling-to-long-polling/



https://blog.al4.co.nz/2016/01/streaming-json-with-flask/



TL;DR: Best practice of long polling implementation in asynchronous python webserver.










share|improve this question






















  • Nevow Athena (based on Twisted Web) uses essentially the low-level technique you describe here to provide a high-level bi-directional symmetric RPC system. It's a fairly obscure library, though, and you may have difficulty finding a supporting community for it.
    – Jean-Paul Calderone
    Nov 12 at 12:41










  • Thank you, I'll take a look at it, it's in the documentation the whole time (twisted web), should've looked there first.
    – Ardhi
    Nov 13 at 0:20














0












0








0







I'm relatively new to REST API and web development in general. I'm looking for options for a client GET request to receive data incrementally/streaming until all data is sent with some criterias:




  • Has to be async (need to use twisted/klein as framework), here's only with Flask as reference.

  • Need to render server-side (next.js has option with socket.io in here with react -> which is the frontend I use), I know it's unrelated, but it's nice to have reading materials like that so I can glue/frankensteinize components together.


my model



From the server (python) It has to be yielded from generator object, right? what confusing me is the underlying options/quirks between websocket, long polling, and server-sent-events, not to mention frameworks like autobahn, WAMP and service like pushpin and crossbar.io which I think is overkill for my case.



The reason I'm mentioning them all is to ask for best practice in using them with their many ways of implementation (phew..). It's a bit overwhelming without enough experience.



At the core level (http headers/protocols/curl), what need to be actually set on the client and server given my scenario? And does long polling sounds like the solution? Does async is a good idea?



Reference reading:



What are Long-Polling, Websockets, Server-Sent Events (SSE) and Comet?



My Understanding of HTTP Polling, Long Polling, HTTP Streaming and WebSockets



http://blog.fanout.io/2016/11/21/moving-from-polling-to-long-polling/



https://blog.al4.co.nz/2016/01/streaming-json-with-flask/



TL;DR: Best practice of long polling implementation in asynchronous python webserver.










share|improve this question













I'm relatively new to REST API and web development in general. I'm looking for options for a client GET request to receive data incrementally/streaming until all data is sent with some criterias:




  • Has to be async (need to use twisted/klein as framework), here's only with Flask as reference.

  • Need to render server-side (next.js has option with socket.io in here with react -> which is the frontend I use), I know it's unrelated, but it's nice to have reading materials like that so I can glue/frankensteinize components together.


my model



From the server (python) It has to be yielded from generator object, right? what confusing me is the underlying options/quirks between websocket, long polling, and server-sent-events, not to mention frameworks like autobahn, WAMP and service like pushpin and crossbar.io which I think is overkill for my case.



The reason I'm mentioning them all is to ask for best practice in using them with their many ways of implementation (phew..). It's a bit overwhelming without enough experience.



At the core level (http headers/protocols/curl), what need to be actually set on the client and server given my scenario? And does long polling sounds like the solution? Does async is a good idea?



Reference reading:



What are Long-Polling, Websockets, Server-Sent Events (SSE) and Comet?



My Understanding of HTTP Polling, Long Polling, HTTP Streaming and WebSockets



http://blog.fanout.io/2016/11/21/moving-from-polling-to-long-polling/



https://blog.al4.co.nz/2016/01/streaming-json-with-flask/



TL;DR: Best practice of long polling implementation in asynchronous python webserver.







python-3.x web-services asynchronous twisted klein-mvc






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asked Nov 12 at 11:28









Ardhi

631513




631513












  • Nevow Athena (based on Twisted Web) uses essentially the low-level technique you describe here to provide a high-level bi-directional symmetric RPC system. It's a fairly obscure library, though, and you may have difficulty finding a supporting community for it.
    – Jean-Paul Calderone
    Nov 12 at 12:41










  • Thank you, I'll take a look at it, it's in the documentation the whole time (twisted web), should've looked there first.
    – Ardhi
    Nov 13 at 0:20


















  • Nevow Athena (based on Twisted Web) uses essentially the low-level technique you describe here to provide a high-level bi-directional symmetric RPC system. It's a fairly obscure library, though, and you may have difficulty finding a supporting community for it.
    – Jean-Paul Calderone
    Nov 12 at 12:41










  • Thank you, I'll take a look at it, it's in the documentation the whole time (twisted web), should've looked there first.
    – Ardhi
    Nov 13 at 0:20
















Nevow Athena (based on Twisted Web) uses essentially the low-level technique you describe here to provide a high-level bi-directional symmetric RPC system. It's a fairly obscure library, though, and you may have difficulty finding a supporting community for it.
– Jean-Paul Calderone
Nov 12 at 12:41




Nevow Athena (based on Twisted Web) uses essentially the low-level technique you describe here to provide a high-level bi-directional symmetric RPC system. It's a fairly obscure library, though, and you may have difficulty finding a supporting community for it.
– Jean-Paul Calderone
Nov 12 at 12:41












Thank you, I'll take a look at it, it's in the documentation the whole time (twisted web), should've looked there first.
– Ardhi
Nov 13 at 0:20




Thank you, I'll take a look at it, it's in the documentation the whole time (twisted web), should've looked there first.
– Ardhi
Nov 13 at 0:20

















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