How to run localhost with https in flask?

@aubrey 

To run Flask with HTTPS on localhost, you will need to create an SSL certificate and key. Here's how you can do it:

1. Generate a self-signed SSL certificate and key using OpenSSL. Open a terminal and run the following command:

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openssl req -x509 -newkey rsa:4096 -nodes -out cert.pem -keyout key.pem -days 365

Follow the prompts to provide the necessary information for the certificate.

1. Create a Flask app that serves over HTTPS. Here's an example of a basic Flask app that serves over HTTPS:

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from flask import Flask

app = Flask(__name__)

@app.route('/')
def hello_world():
    return 'Hello, World!'

if __name__ == '__main__':
    app.run(ssl_context=('cert.pem', 'key.pem'))

1. Save the SSL certificate (cert.pem) and SSL key (key.pem) in the same directory as your Flask app.
2. Run your Flask app using the following command:

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python your_flask_app.py

Your Flask app should now be running on HTTPS on localhost. You can access it at https://localhost:5000. Please note that since this is a self-signed certificate, your browser may show a privacy error when accessing the site. You can proceed to the site by accepting the risk.