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Consider, I have a flask server deployed which routes to multiple webpages. If I want to change content of one route, by changing its code, is it possible to reflect those changes in webpages without rerunning the flask server? It is possible to host and rerun other scripts on the linux server or entriely another flask server as long as the website url(port number and route) doesn't change.
Please suggest any way you can come up with!
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To reload Python Flask app when template file changes, we set the TEMPLATES_AUTO_RELOAD to True . to config our Flask app to auto reload the app when we changed the template code.
The reason for this is that due to how the reload mechanism works there are some bizarre side-effects (like executing certain code twice...)
Although Flask has a built-in web server, as we all know, it's not suitable for production and needs to be put behind a real web server able to communicate with Flask through a WSGI protocol. A common choice for that is Gunicorn—a Python WSGI HTTP server.
Flask development server provides such provision using which you can easily achieve the goal. Applications that use DEBUG mode in development environment will automatically restart whenever files in the application change. This can be a useful feature as it gives a very fast feedback loop for code changes. Prerequisites
The code lets us run a basic web application that we can serve, as if it were a website. from flask import Flask app = Flask (__name__) @app.route ("/") def home (): return "Hello, World!" if __name__ == "__main__": app.run (debug=True) This piece of code is stored in our main.py.
So you should also run your development server with export FLASK_ENV=development before flask run. If you are using the built-in app.run () try adding app.run (debug=True) It solves.
insert into user values(1, 'Soumitra', '[email protected]', '43256789', 'Earth'); Configure Flask The following configuration is written into a file app.py: from flask import Flask config = { "DEBUG": True # run app in debug mode } app = Flask(__name__) # Flask to use the above defined config app.config.from_mapping(config)
setting flask environment will do the thing for you in the shell.
export FLASK_ENV=development
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