Flask Button run Python without refreshing page?

Question

I am just getting started into python and flask (for the raspberry pi). I want a web application that would execute some python code to pan and tilt a camera and display a v

Answer 1

You can simply do this with help of AJAX... Here is a example which calls a python function which prints hello without redirecting or refreshing the page.

In app.py put below code segment.

//rendering the HTML page which has the button
@app.route('/json')
def json():
    return render_template('json.html')

//background process happening without any refreshing
@app.route('/background_process_test')
def background_process_test():
    print "Hello"
    return "nothing"

And your json.html page should look like below.

//button

Test
    

        Test
    

Here when you press the button Test simple in the console you can see "Hello" is displaying without any refreshing.