Python CLI that generates No Expiration Token on Facebook API

fbnoexpire.py

#!/usr/bin/env python3
"""
Script that Generates Never Expiring Token
Authored by: Fearocanity
Credit: https://stackoverflow.com/a/28418469
"""

import os
import json
import requests
import signal

creds_file_path = os.path.expanduser('~/.fb_creds')

def handle_interrupt(signum, frame):
    print("\nScript interrupted. Exiting...")
    exit(1)

def get_input(prompt):
    try:
        value = input(prompt).strip()
        if not value:
            raise ValueError("Input cannot be empty.")
        return value
    except KeyboardInterrupt:
        handle_interrupt(signal.SIGINT, None)

def get_access_token(client_id, client_secret, user_token):
    params = {
        'grant_type': 'fb_exchange_token',
        'client_id': client_id,
        'client_secret': client_secret,
        'fb_exchange_token': user_token
    }
    try:
        response = requests.get("https://graph.facebook.com/v2.10/oauth/access_token", params=params).json()
        return response.get('access_token', '')
    except (requests.RequestException, ValueError) as e:
        print(f"Error: {e}")
        exit(1)

def save_credentials(creds_file_path, data):
    try:
        with open(creds_file_path, 'a') as creds_file:
            for page_data in data.get('data', []):
                creds_file.write(f"\n\nPage: {page_data.get('name', '')}\nNon-Expiring Token: {page_data.get('access_token', '')}\n\n")
        print(f"Saved on {os.path.realpath(creds_file_path)}")
    except IOError as e:
        print(f"Error: {e}")
        exit(1)

def main():
    signal.signal(signal.SIGINT, handle_interrupt)

    try:
        client_id = get_input("The App ID of Application of Facebook Developers\nClient ID: ")
        client_secret = get_input("Get the client_secret from [dashboard > settings > basic > app secret]\nClient Secret: ")
        user_token = get_input("Get the User Token (not the page token) from Graph API Explorer\nUser Short-Lived token: ")
    except ValueError as e:
        print(f"Error: {e}")
        exit(1)

    if not all((client_id, client_secret, user_token)):
        print("Something went wrong: Required credentials are missing.")
        exit(1)

    ll_tok = get_access_token(client_id, client_secret, user_token)

    response = requests.get(f"https://graph.facebook.com/v2.10/me?access_token={ll_tok}").json()
    usr_id = response.get('id', '')

    if not usr_id:
        print("Something went wrong while retrieving user ID.")
        exit(1)

    raw_c = requests.get(f"https://graph.facebook.com/v2.10/{usr_id}/accounts?access_token={ll_tok}").json()
    save_credentials(creds_file_path, raw_c)

if __name__ == "__main__":
    main()