How do I handle form submissions in Flask?

How do I handle form submissions in Flask?

To handle form submissions in Flask, you typically use the request object to access form data.

Can you show me a simple example?

Sure! Here's a basic example:

from flask import Flask, request, render_template

app = Flask(__name__)

@app.route('/submit', methods=['GET', 'POST'])
def submit():
    if request.method == 'POST':
        name = request.form['name']
        return f'Hello, {name}!'
    return render_template('form.html')

What should the HTML form look like?

The HTML form can be simple, like this:

<form method='POST' action='/submit'>
    <input type='text' name='name' placeholder='Enter your name'>
    <input type='submit' value='Submit'>
</form>

How do I validate the form data?

You can validate form data by checking if the fields are filled out and using Flask-WTF for more advanced validation.