Flask Message Flashing Simple Message Flashing
Example
Set SECKET_KEY, then flashing message in view function:
from flask import Flask, flash, render_template
app = Flask(__name__)
app.secret_key = 'some_secret'
@app.route('/')
def index():
flash('Hello, I'm a message.')
return render_template('index.html')
Then render the messages in layout.html (which the index.html extended from):
{% with messages = get_flashed_messages() %}
{% if messages %}
<ul class=flashes>
{% for message in messages %}
<li>{{ message }}</li>
{% endfor %}
</ul>
{% endif %}
{% endwith %}
{% block body %}{% endblock %}
