how to not have the flask server break when an error occurs?

Question

I have made an API app using flask, that takes a number(decimal) as input and returns some string. This app breaks if I send a string and works fine after re-starting it. I don\

Answer 1

You need to trigger a return with an error message, if whatever the user submits can't be expressed as an integer.

The following should work for submissions like 3 and '3'

    # now the processing part
    try:
        number = int(json_data['number'])
    except ValueError:
        return jsonify(['Invalid submission'])

    # Number is now type integer

    if number < 2:
        return jsonify(["the number is less than two"])
    else:
        return jsonify(["the number is not less than two"])