Flask

问题 I need to display/stream large video files in reactjs. These files are being uploaded to private s3 bucket by user using react form and flask. I tried getObject method, but my file size is too large. get a signed url method required me to download the file. I am new to AWS-python-react setup. What is the best/most efficient/least costly approach to display large video files in react? 回答1: AWS offers other streaming specific services but if you really want to get them off S3 you could retrieve

问题 I am using flask socket-io for a basic chat app. But I have a problem. When my device connect to server, flask give to device a session id. But after disconnect and again connect, session id changes. So, this device can't receive old room's messages. I thought if I'd do if I assign custom session id to device.Is it true? Or what is your suggestions? 回答1: The session ids are supposed to be unique, even when a client reconnects. There is no way for an application to choose these ids, they are

问题 I am using Python Flask to build a website. I can login, but not log out. The logout button does not respond when I click it. The logout function: @bp.route('/logout') def logout(): session.pop('userName') return redirect(url_for('index.html')) The code for the logout button: <button type="button">Logout</button> The logout button is in the file ...\sent\templates\base.html The logout function is in the file ...\sent\blueprints\auth.py Do I need an onclick handler to call the Python function?

问题 I have "code grant flow" login with the authlib flask integration working nicely: redirect_uri = url_for('authorize', _external=True) return oauth.myOauth2.authorize_redirect(redirect_uri) For some reason I decided I want to try to make the redirect a bit more visible. Show users my app for a moment before redirecting to a login page that may be more unfamiliar for some. Now this kind of works: redirect_uri = url_for('authorize', _external=True) aurl = oauth.myOauth2.create_authorization_url

问题 I'm trying to run the Hello World using Flask framework : from flask import Flask app = Flask(__name__) @app.route('/') def hello() -> str: return 'Hell world from Flask!' app.run() Then I go to my cmd and I run my script according to the documentation: set FLASK_APP = flaskhello.py python -m flask run And what I get is a grey window with a click me header and when I click it i get the X and Y but I don't get the http address on my cmd to run it on browser. What should I do to correct this ?

问题 I am developing a flask application, in which I have a dropdown, when I select an option, it should display below the dropdown "Your selected score : " and the selected score. I am displaying a dropdown like below : <select name="score"> {% for score in range(6) %} <option value={{score}}> {{score}} </option> {% endfor %} </select> I am displying thr selected value like : Your selected score : {{ score }} I tried and search a lot couldn't find anything. Any leads would be helpful. 回答1: You

问题 This question already has answers here : download file using an ajax request (12 answers) Download csv file as response on AJAX request (2 answers) Closed 2 years ago . I am building a python flask web app. I am trying to get a CSV file downloaded through jquery/ ajax call. This is how my ajax request looks like: $(".download-btn").on("click", function(){ $.ajax({ type: 'GET', url: '/downloadFile', contentType: 'csv', cache: false, processData: false, async: false, success: function(data) {

问题 I have the following function with multiple routes possible : @bp.route('/list/', defaults={'status': None, 'time': None, 'search': None}) @bp.route('/list/lot/', defaults={'status': None, 'search': None, 'time': None}) @bp.route('/list/lot/<string:time>/', defaults={'status': None, 'search': None}) @bp.route('/list/lot/<string:time>/<string:status>', defaults={'search': None}) @bp.route('/list/lot/<string:time>/<string:status>?search=<path:search>') @login_required def index(status, time,

问题 How to deploy Flask app on AWS Linux/UNIX EC2 instance. With any way either 1> using Gunicorn 2> using Apache server 回答1: It's absolutely possible, but it's not the quickest process! You'll probably want to use Docker to containerize your flask app before you deploy it as well, so it boils down to these steps: Install Docker (if you don't have it) and build an image for your application and make sure you can start the container locally and the app works as intended. You'll also need to write

问题 Internet is full of examples of applications served with Flask (api) and Vue.js (client), but since Vue is a SPA it make sense to serve it with flask as well. I didn't find any help, especially where the App is stored in an external js. With Firefox I get error for a disallowed type: Loading module from “http://localhost:5000/static/App” was blocked because of a disallowed MIME type (“text/html”). On Chrome I just get file not found since it tries to get the App file instead of App.vue. Here