While Node

The while node is used to perform actions continuously over time. It has only one requirement:

Important

The final node in the body must return a boolean value.

Example

Combining the while node with Code Node allows you to perform actions continuously over time, and combining it with a Data Node allows you to record data continuously.

For example, to record the battery level of your computer every half second (500ms), as long as the battery level is greater than 20%, you could use the following nodes connected together:

Code Node:

import subprocess
import re

def main() -> int:
    output = subprocess.check_output(["pmset", "-g", "batt"]).decode("utf-8")
    match = re.search(r'(\d+)%', output)
    if match:
        return int(match.group(1))
    return -1

Data Node:

Code Node (Condition):

def main(input) -> bool:
    return input >= 20

Finished Example

The finished example, combining all these nodes should look like this: The node Final and any other after it will run after the loop breaks (in this case when the battery level is less than 20%).