I've been trying websocket-client and socketio-client with no luck so far. The broad picture of what I want to accomplish is this:
Currently, I have a Flask Rest API that has both a web front-end and a command line interface, and it handles several different sets of file uploads/downloads. Both communicate with the server using HTTP requests, the web one from JQuery AJAX and the CLI uses python requests. I would like to switch to using sockets so that database changes from one client appear on all of them. I have been able to get Flask-SocketIO working between my JQuery and Flask server, but I'm struggling with getting any client libraries working from the CLI portion. Is there an easy to use python library for sockets similar to requests I should be using for this transition, or am I going in a totally wrong direction with making this switch?
Another option, unsure of the viability, would be to try and keep both the REST API for the CLI and have sockets for the web interface. Sounds very messy though.
After doing a lot of searching and messing around with various libraries, the one that was easiest to get up and running connecting a command line tool with a Flask-SocketIO webapp was socketIO-client.
This repository came in handy for the issues where I was struggling to understand how to correctly use the waits to receive info on the client side.
Once I've finished the project in a few weeks, I will come back and add more details so people finding this in the future can have an easier time getting this set up.
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I want to build a static web page based on python as server side and React for frontend on glitch online programming environment but unable to do .
I tried to implement by using CDN link but unable to use efficiently . Apart from this, I also wanted to use MATERIAL UI but according to there website it says
Using this approach in production is discouraged though - the client has to download the entire library, regardless of which components are actually used, affecting performance and bandwidth utilization.
Please elaborate steps to do the same.
Im sorry if that's too simple, but I managed to do it reading this article:
https://towardsdatascience.com/build-deploy-a-react-flask-app-47a89a5d17d9
I use the framework Flask, but if you are using Django the process must be similar.
But I recomend building a API with python and communicate with the front-end through the fecth API from javascript, or axios on react. You'll even be able to work on the frontend and backend in two different servers if you want.
I have been developing a Python app that serves a React frontend with server-side rendering.
Locally, this has worked fine as I'm able to run two servers on separate ports to handle different parts of my application. My Python backend receives the initial request and then sends an http request to my Node.js server which does my server-side rendering. The result is then sent back to my Python backend which injects the server-rendered frontend into the HTML which is sent to the client.
However, Heroku limits applications to a single, dynamically generated port. This limits me to only running one web server which means I'm no longer able to run my Node.js server to do my server-side rendering. I have thought of some gimmicky ways to make this work, but I don't want to have to create an entirely new app on Heroku just to run the Node.js server I need.
I'm not sure how I can make this work with these limitations in place so I'm hoping I can learn some alternative ways to make this work on Heroku. What are some viable workarounds to handle this problem?
I think you need to create to separate apps on Heroku(even though you don't want to), as far as I know there's no other available options on Heroku.
I use Heroku for a SSR application running on two apps. One for frontend(react) and one for backend(nodejs). Works like a charm
I've made a small python script to scrap the web. I would like to make a nice and simple web interface where the user can enter data to search for and have the result displayed as a list.
I understand that there's many different ways to do that but don't know which one would be the best in my case.
I would like something :
Really simple and light
Running locally with the less dependencies possible.
So far I've thinking about :
A NodeJS server displaying content and executing the script
A web framework in Python (web.py, Flask, Django..?)
A local webserver (XAMPP) and cgi
Please note that I don't know much about web in python but I'm a bit used to NodeJS.
What would you recommend ?
Thanks, Victor
Personally I prefer gevent, bottle or Flask, and some front end framework like bootstrap or framework7.
Gevent easily makes it asynchronous and has websockets built right in, and bottle is the easiest (and fastest) way to build a web app or api.
Socket.io ist Very easy to send Data between Websites and scripts.
The Website Connect with the Socket.io Server and Inside the Server the Python Script can be executed
I am developing my web app with Python 2.7 + Bottle. Everything is great and python is an amazing language coming from ASP.NET. I am building a web application that needs to use real-time client/server communication and socket.io for node.js comes to mind.
I wanted to know how can I implement socket.io-like using Python + bottle. I've read this article on bottle, but I can't still seem to understand how it works - what I need to install, and how all works out (code examples?).
I really need that for my next web application but need help in understanding what I need to put in my project in order for it to work. I have no problem working with 'preview' codes which aren't stable release yet. I'm developing on Windows platform. Thanks.
I also want to know if its scalabe. whether I can use redis in the back so all calls will be sync when running my website on several servers, so when one client send data, all the other clients connected to the other servers will get it to.
maybe websocket can help you,many modern browser support this protocol,but bottle.py don't support it now,you can get some idea from tornado.websocket and some answer here
cause every connection can be saved,so i guess it can run on several servers,but i never implement.
since bottle is micro framework,you should do something by yourself.
I've been working on a Flask app which handles SMS messages using Twilio, stores them in a database, and provides access to a frontend via JSONP GET requests. I've daemonized it using supervisord, which seems to be working pretty well, but every few days it starts to hang (i.e. all requests pend forever or time out) and I have to restart the process. (I've also tried simply running it with nohup, but same problem.) I was suspicious that sqlite3 was somehow blocking occasionally, but my most recent test was to write a request method which didn't involve database access, and that's timing out too. I'm incredibly puzzled -- hopefully you've seen something similar or know what might be causing this.
The relevant code can be found here, and it's currently running (and stalled, as of this post) on my VPS at mattnichols.net:6288
Thanks!
Update: do you think this could be an issue with Flask's dev server? I'd like to believe that wrapping my app with Tornado (or something similar) could solve the problem, but I've also run other things for much longer without problems using the dev server.
For the record, this seems to have been solved by running my app using Tornado instead of the Flask dev server. Wrapping my Flask code into a Tornado server was super easy once I decided to do so: consult http://flask.pocoo.org/docs/deploying/wsgi-standalone/#tornado if you find yourself in my same situation.