Create a delivery vehicle for scheduled tasks

This document describes how to create a vehicle from a server environment using either gRPC or REST. You can create a vehicle from the Driver SDK, provided you have provisioned the app as a trusted environment using the appropriate credentials.

To understand how to use the Driver SDK to create vehicles, see the following:

To create a new vehicle from a server environment, make a CreateDeliveryVehicle request to Fleet Engine. Use the CreateDeliveryVehicleRequest object to define the attributes of the new delivery vehicle.

Fields for scheduled tasks vehicles

When creating a DeliveryVehicle, you set the following optional fields:

  • attributes
  • last_location
  • type

To create a vehicle without setting any optional fields, you can leave the DeliveryVehicle field unset in the CreateDeliveryVehicleRequest.

Create vehicle example

You can use the Java gRPC library to create a vehicle, or REST.

Java

  static final String PROJECT_ID = "my-delivery-co-gcp-project";
  static final String VEHICLE_ID = "vehicle-8241890"; // Avoid auto-incrementing IDs.

  DeliveryServiceBlockingStub deliveryService =
    DeliveryServiceGrpc.newBlockingStub(channel);

  // Vehicle settings
  String parent = "providers/" + PROJECT_ID;
  DeliveryVehicle vehicle = DeliveryVehicle.newBuilder()
    .addAttributes(DeliveryVehicleAttribute.newBuilder()
      .setKey("route_number").setValue("1"))  // Opaque to the Fleet Engine
    .build();

  // Vehicle request
  CreateDeliveryVehicleRequest createVehicleRequest =
    CreateDeliveryVehicleRequest.newBuilder()  // No need for the header
        .setParent(parent)
        .setDeliveryVehicleId(VEHICLE_ID)     // Vehicle ID assigned by the Provider
        .setDeliveryVehicle(vehicle)
        .build();

  // Error handling
  // If Fleet Engine does not have vehicle with that ID and the credentials of the
  // requestor pass, the service creates the vehicle successfully.

  try {
    DeliveryVehicle createdVehicle =
      deliveryService.createDeliveryVehicle(createVehicleRequest);
  } catch (StatusRuntimeException e) {
    Status s = e.getStatus();
    switch (s.getCode()) {
       case ALREADY_EXISTS:
         break;
       case PERMISSION_DENIED:
         break;
    }
    return;
  }

REST

To create a vehicle from a server environment, make an HTTP REST call to CreateDeliveryVehicle:

POST https://fleetengine.googleapis.com/v1/providers/<project_id>/deliveryVehicles?deliveryVehicleId=<id>

The POST body represents the DeliveryVehicle entity to be created. You can specify the following optional fields:

  • attributes
  • lastLocation
  • type
  # Set $JWT, $PROJECT_ID, and $VEHICLE_ID in the local
  # environment
  curl -X POST "https://fleetengine.googleapis.com/v1/providers/${PROJECT_ID}/deliveryVehicles?deliveryVehicleId=${VEHICLE_ID}" \
    -H "Content-type: application/json" \
    -H "Authorization: Bearer ${JWT}" \
  --data-binary @- << EOM
  {
    "attributes": [{"key": "model", "value": "sedan"}],
    "lastLocation": {"location": {"latitude": 12.1, "longitude": 14.5}}
  }
  EOM

To create a vehicle without setting any fields, leave the body of the POST request empty. The newly-created vehicle then extracts a vehicle ID from the deliveryVehicleId parameter in the POST URL.

Example:

  # Set $JWT, $PROJECT_ID, and $VEHICLE_ID in the local
  # environment
  curl -X POST "https://fleetengine.googleapis.com/v1/providers/${PROJECT_ID}/deliveryVehicles?deliveryVehicleId=${VEHICLE_ID}" \
    -H "Content-type: application/json" \
    -H "Authorization: Bearer ${JWT}"

What's next