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# updateNavigationWaypoints

An intent schema that updates the list of waypoints for a navigation session.

```
var updateNavigationWaypoints: some AppSchemaIntent { get }
```

## Discussion

To make your app’s actions available to Apple Intelligence,
conform your [`AppIntent`](/documentation/AppIntents/AppIntent) to a schema that describes your action to the system.
If your app’s functionality aligns with the `maps` domain
and one of your app’s actions matches the `updateNavigationWaypoints` schema,
you can generate the properties and protocol conformance the schema requires
for your intent implementation
with the `@AppIntent( .maps.updateNavigationWaypoints)` Swift macro.
To make your app work with Siri,
see <doc://com.apple.documentation/documentation/AppIntents/apple-intelligence-and-siri-ai>.

The following example shows an intent that conforms to the `updateNavigationWaypoints` schema:

```swift
@AppIntent(schema: .maps.updateNavigationWaypoints)
struct MapsUpdateNavigationWaypointsIntent {
    var navigation: <#MapsNavigationSessionEntity#>
    var waypoints: [<#MapsLocation#>]

    func perform() async throws -> some ReturnsValue<<#MapsNavigationSessionEntity#>> {
        <#code#>
    }
}
```

Define a `@UnionValue` enumeration for the `waypoints` parameter, as in the following example,
by typing the first few characters of `maps_location` in Xcode and selecting it from the code-completion suggestions.

```swift
@UnionValue
enum MapsLocation {
    case place(<#MapsPlaceEntity#>)
    case currentLocation(<#MapsCurrentLocationEntity#>)
}
```

> Tip: Keep the cases that your app supports and remove the rest.

The schema supports the following system experiences:

- Siri
- Shortcuts

For more information about the App Intents framework and the experiences it supports,
see <doc://com.apple.documentation/documentation/AppIntents/getting-started-with-the-app-intents-framework>.

---

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