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# nw_path_monitor_t

An observer that you use to monitor and react to network changes.

```
typealias nw_path_monitor_t = any OS_nw_path_monitor
```

## Topics

### Creating Path Monitors

[`func nw_path_monitor_create() -> nw_path_monitor_t`](/documentation/Network/nw_path_monitor_create())

Initializes a path monitor to observe all available interface types.

[`func nw_path_monitor_create_with_type(nw_interface_type_t) -> nw_path_monitor_t`](/documentation/Network/nw_path_monitor_create_with_type(_:))

Initializes a path monitor to observe a specific interface type.

[`func nw_path_monitor_prohibit_interface_type(nw_path_monitor_t, nw_interface_type_t)`](/documentation/Network/nw_path_monitor_prohibit_interface_type(_:_:))

Prohibit a path monitor from using a specific interface type.

[`func nw_path_monitor_set_queue(nw_path_monitor_t, dispatch_queue_t)`](/documentation/Network/nw_path_monitor_set_queue(_:_:))

Sets a queue on which to deliver path events.

[`func nw_path_monitor_start(nw_path_monitor_t)`](/documentation/Network/nw_path_monitor_start(_:))

Starts monitoring path changes.

### Handling Path Updates

[`func nw_path_monitor_set_update_handler(nw_path_monitor_t, nw_path_monitor_update_handler_t)`](/documentation/Network/nw_path_monitor_set_update_handler(_:_:))

Sets a handler to receive network path updates.

[`typealias nw_path_monitor_update_handler_t`](/documentation/Network/nw_path_monitor_update_handler_t)

A handler that delivers network path updates.

### Canceling Path Monitors

[`func nw_path_monitor_cancel(nw_path_monitor_t)`](/documentation/Network/nw_path_monitor_cancel(_:))

Stops receiving network path updates.

[`func nw_path_monitor_set_cancel_handler(nw_path_monitor_t, nw_path_monitor_cancel_handler_t)`](/documentation/Network/nw_path_monitor_set_cancel_handler(_:_:))

Sets a handler to determine when a monitor is fully cancelled and will no longer deliver events.

[`typealias nw_path_monitor_cancel_handler_t`](/documentation/Network/nw_path_monitor_cancel_handler_t)

A handler that indicates when a monitor has been cancelled.


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