token static method
Generate a secure random token (base64-like)
Implementation
static String token([int length = 32]) {
const chars =
'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789_-';
return List.generate(length, (_) => chars[_random.nextInt(chars.length)])
.join();
}