form利用按鈕取得使用者feedback, 在flask app裡頭取得使用者按的按鈕的值
# References
# https://stackoverflow.com/questions/11556958/sending-data-from-html-form-to-a-python-script-in-flask
@app.route('/feedback', methods=['POST'])
def save_user_feedback():
print(request.form['y'])
<form action="{{ url_for('save_user_feedback') }}" method=post>
<div class='form-group'>
<button type="submit" name='y' value="cat" class="btn btn-success">Cat</button>
<button type="submit" name='y' value="dog" class="btn btn-success">Dog</button>
<button type="submit" name='y' value="others" class="btn btn-success">Others</button>
</div>
</form>