Recalculate the route

Besides the update mutation, there is another way to alter the route in a navigation session. With the recalculateNavigation mutation you can force the calculation of a new route.

Mutation

To be able to recalculate a route you need to provide the navigation id and the current_location. You can include the current state_of_charge, via points and the current heading of the vehicle. These fields are optional but will be used to optimize the new route.

There are two use cases for this operation.

1. Deviate from the route

In case a vehicle deviates from the calculated route (e.g. the driver takes a wrong exit), most navigation SDKs will detect this. We recommend to hook into the event and send the location from the off route callback.

Do not send multiple requests but wait until the subscription returns a new route.

2. Changing the via points

The second use case for using this operation is to change the manually added via points. This allows the driver to change the order of the via points, to add new ones or to delete them. Note that via points that were already reached are eliminated automatically.