Can you use Flask with React?
route decorator tells Flask which URL should trigger our serve(path) function. At this current stage (before deployment), React is running on port 3000 and Flask on port 5000. Hence, when React is making a request to Flask backend, this CORS error pops up.
Can we use Flask as backend?
Flask is used for the backend, but it makes use of a templating language called Jinja2 which is used to create HTML, XML or other markup formats that are returned to the user via an HTTP request. And if you have a little Python know-how, you can quickly hit the ground running and start creating web apps in no time.
How do you combine Flask and React?
You need to install three packages on your machine:
- Node. js: The JavaScript runtime that you will use to run your frontend project.
- Yarn: A package and project manager for Node. js applications.
- Python: A recent Python 3 interpreter to run the Flask backend on.
Is flask a Python framework?
Flask is a micro web framework written in Python. It is classified as a microframework because it does not require particular tools or libraries. However, Flask supports extensions that can add application features as if they were implemented in Flask itself.
Is Flask good for web development?
Flask is a good start if you are getting into web development. There are many websites built on the flask and gain heavy traffic, but not as much compared to the ones in Django.
Is Flask a Python library?
Does Flask need JavaScript?
You can choose not to use javascript. It is not obligatory ( although it is for all the modern web sites today).
Do I need backend for React app?
No. React is a Front end Javascript library, it is not even a framework. React is capable of making API calls (send request to backend), which deals with the data. React cannot deal with database or any datasource itself.