JavaScript sends data to Flask, Flask sends back some data - better as JSON - and JavaScript receives this data and updates HTML in browser. – furas Commented Dec 4, 2016 at 20:53

2015年4月5日 · from flask import Flask, jsonify from OpenSSL import SSL context = SSL.Context(SSL.PROTOCOL_TLSv1_2 ...

# -*- coding: utf-8 -*- from flask import Flask from flask_sockets import Sockets app = Flask(__name__) sockets = Sockets(app) app.config.from_object('config') from app import views Using Flask-Websockets made my life a lot easier. Here is the launcher : launchwithsockets.sh #!/bin/sh gunicorn -k flask_sockets.worker app:app

From the Flask API Documentation (v. 2.0.x):. flask.redirect(location, code=302, Response=None) Returns a response object (a WSGI application) that, if called, redirects the client to the target location.

2013年12月18日 · from flask import Flask, send_from_directory from flask_restful import Api, Resource from server ...

I think you may be misunderstanding a few things about Flask. For one, you can't nest multiple functions in a single route. You're not making a set of functions available for a particular route, you're defining the one specific thing the server will do when that route is called.

The URL parameters are available in request.args, which is an ImmutableMultiDict that has a get method, with optional parameters for default value (default) and type (type) - which is a callable that converts the input value to the desired format.

2017年8月29日 · As a follow-up to @peter-hoffmann's answer, I've written a Flask extension specifically to handle server-sent events. It's called Flask-SSE, and it's available on PyPI. To install it, run: $ pip install flask-sse You can use it like this:

FLASK_APP=app.py FLASK_ENV=development FLASK_RUN_HOST=[dev-host-ip] FLASK_RUN_PORT=5000 If you have a virtual environment, activate it and do a pip install python-dotenv. This package is going to use the .flaskenv file, and declarations inside it will be automatically imported across terminal sessions. Then you can do flask run

I am trying to save a cache dictionary in my flask application. As far as I understand it, the Application Context, in particular the flask.g object should be used for this. Setup: import flask as f app = f.Flask(__name__) Now if I do: with app.app_context(): f.g.foo = "bar" print f.g.foo It prints bar. Continuing with the following: