sleep() [ Sleep ]

flag() (SystemSleepConfiguration)

// PROTOTYPE
SystemSleepConfiguration& flag(particle::EnumFlags<SystemSleepFlag> f)

// EXAMPLE
SystemSleepConfiguration config;
config.mode(SystemSleepMode::STOP)
      .network(NETWORK_INTERFACE_CELLULAR)
      .flag(SystemSleepFlag::WAIT_CLOUD)
      .duration(2min);

The only supported flag is:

• SystemSleepFlag::WAIT_CLOUD

This will make sure all cloud messages have been acknowledged before going to sleep. Another way to accomplish this is to use graceful disconnect mode.