A introdução às Tarefas programadas, que aborda a relação entre tarefas, paradas e veículos em detalhes.
Em um cenário de entrega real, as empresas atribuem tarefas de entrega a motoristas, que usam um veículo para entregar os itens ao destinatário em um local planejado, como uma residência ou uma sala de entrega em um complexo de edifícios. Você modela isso no Fleet Engine criando uma tarefa e emitindo uma solicitação de atualização do veículo de entrega, que atualiza a entidade do veículo com uma lista de paradas a serem percorridas. Você atribui a cada parada uma lista de tarefas a serem concluídas.
É possível atualizar as tarefas do veículo a qualquer momento, mas geralmente isso é feito para os seguintes fins:
Programar tarefas para um veículo concluir. Isso pode ser feito com uma solicitação de atualização que adiciona uma nova parada ao veículo ou com uma solicitação de atualização que adiciona uma nova tarefa a uma parada existente.
Atualize a ordem das tarefas atuais associadas a uma determinada parada de veículo.
Mude o local de conclusão da tarefa. Por padrão, o Fleet Engine
marca o local de conclusão da tarefa como o mesmo local da parada do veículo
associada à tarefa. Se preferir, você pode especificar locais específicos para tarefas individuais. Por exemplo, um veículo pode parar em um grande
complexo para entregar vários pacotes, cada um deles atribuído a uma
sala de entrega de correspondências específica.
Feche as tarefas atribuídas anteriormente para que elas não apareçam na ordem atualizada. Consulte Concluir tarefas para mais detalhes.
Agendar ou mudar tarefas de entrega
É possível programar ou mudar tarefas atribuídas a um veículo em um ambiente de servidor ou usando o SDK Driver, se você permitir que o motorista gerencie tarefas usando um dispositivo confiável. Use apenas um método para evitar disputas e manter uma única fonte de verdade.
Para mudar uma entrega de um veículo para outro, encerre a tarefa original
e recrie-a antes de atribuir a outro veículo. Se você atualizar um
veículo de entrega para incluir uma tarefa já atribuída a um
veículo diferente, vai receber um erro.
Campos obrigatórios para atualizar tarefas
Esta seção documenta os campos obrigatórios a serem definidos ao atualizar uma tarefa para um veículo. Nenhum campo opcional é fornecido. O Fleet Engine ignora todos os outros campos
na entidade para a atualização.
Campo obrigatório
Valor
remainingVehicleJourneySegments
Uma lista de segmentos de jornada para tarefas na ordem em que devem ser executadas.
A primeira tarefa da lista é executada primeiro.
Uma lista de tarefas a serem realizadas nessa parada do veículo.
remainingVehicleJourneySegments[i].stop.state
State.NEW
Exemplo de atribuição de tarefas
Os exemplos a seguir mostram como usar a biblioteca gRPC Java e uma chamada HTTP
REST para UpdateDeliveryVehicle para adicionar duas novas tarefas ao veículo.
gRPC
staticfinalStringPROJECT_ID="my-delivery-co-gcp-project";staticfinalStringVEHICLE_ID="vehicle-8241890";staticfinalStringTASK1_ID="task-756390";staticfinalStringTASK2_ID="task-849263";DeliveryServiceBlockingStubdeliveryService=DeliveryServiceGrpc.newBlockingStub(channel);// Vehicle settingsStringvehicleName="providers/"+PROJECT_ID+"/deliveryVehicles/"+VEHICLE_ID;DeliveryVehicledeliveryVehicle=DeliveryVehicle.newBuilder().addRemainingVehicleJourneySegments(VehicleJourneySegment.newBuilder()// 1st stop.setStop(VehicleStop.newBuilder().setPlannedLocation(LocationInfo.newBuilder().setPoint(LatLng.newBuilder().setLatitude(37.7749).setLongitude(122.4194))).addTasks(TaskInfo.newBuilder().setTaskId(TASK1_ID)).setState(VehicleStop.State.NEW))).addRemainingVehicleJourneySegments(VehicleJourneySegment.newBuilder()// 2nd stop.setStop(VehicleStop.newBuilder().setPlannedLocation(LocationInfo.newBuilder().setPoint(LatLng.newBuilder().setLatitude(37.3382).setLongitude(121.8863))).addTasks(TaskInfo.newBuilder().setTaskId(TASK2_ID)).setState(VehicleStop.State.NEW))).build();// DeliveryVehicle requestUpdateDeliveryVehicleRequestupdateDeliveryRequest=UpdateDeliveryVehicleRequest.newBuilder()// No need for the header.setName(vehicleName).setDeliveryVehicle(deliveryVehicle).setUpdateMask(FieldMask.newBuilder().addPaths("remaining_vehicle_journey_segments")).build();try{DeliveryVehicleupdatedDeliveryVehicle=deliveryService.updateDeliveryVehicle(updateDeliveryVehicleRequest);}catch(StatusRuntimeExceptione){Statuss=e.getStatus();switch(s.getCode()){caseNOT_FOUND:break;casePERMISSION_DENIED:break;}return;}
<id> é um identificador exclusivo de um veículo de entrega na sua frota
para o qual você pretende atualizar a ordem das tarefas. É o identificador que você especificou ao criar o veículo.
O cabeçalho da solicitação precisa conter um campo Authorization com o valor
Bearer <token>, em que <token> é emitido pelo servidor
de acordo com as diretrizes descritas em Funções da conta de serviço e
Tokens da Web JSON.
O corpo da solicitação precisa conter uma entidade DeliveryVehicle.
[null,null,["Última atualização 2025-08-31 UTC."],[[["\u003cp\u003eFleet Engine enables modeling real-world deliveries by creating tasks and assigning them to vehicles via stops, allowing for dynamic task management.\u003c/p\u003e\n"],["\u003cp\u003eYou can schedule, reorder, relocate, and close tasks for vehicles using server requests or the Driver SDK, ensuring a single source of truth for task management.\u003c/p\u003e\n"],["\u003cp\u003eTo move a task between vehicles, close the original task and recreate it for the new vehicle, preventing assignment errors.\u003c/p\u003e\n"],["\u003cp\u003eWhen scheduling multiple tasks at the same location, assign them to a single stop to streamline task status sharing and improve efficiency.\u003c/p\u003e\n"],["\u003cp\u003eUpdating tasks involves specifying remaining journey segments, stop locations, associated tasks, and setting the stop state to 'NEW' via gRPC or REST API calls.\u003c/p\u003e\n"]]],[],null,["This document assumes familiarity with the following:\n\n- [Create shipment tasks](/maps/documentation/mobility/fleet-engine/journeys/tasks/create-shipment-tasks)\n- The introduction to [Scheduled tasks](/maps/documentation/mobility/fleet-engine/essentials/tasks-intro), which covers the relationship between tasks, stops, and vehicles in detail.\n\nIn a real-world delivery scenario, businesses assign delivery shipment tasks to\ndrivers, who then use a vehicle to deliver them to the recipient at a planned\nlocation, such as a residence or a delivery room in a building complex. You\nmodel this in Fleet Engine by creating a task and issuing a delivery vehicle\nupdate request, which then updates the vehicle entity with a list of stops to\ntravel. You assign each stop a list of tasks to be completed at the stop.\n\nYou can update vehicle tasks at any time, but typically you do this for the\nfollowing purposes:\n\n- **Schedule tasks** for a vehicle to complete. You can do this either with an update request that adds a new stop to the vehicle, or by an update request that adds a new task to an existing stop.\n- **Update the order of existing tasks** associated with a given vehicle stop.\n- **Change the location of the task completion.** By default, Fleet Engine marks the task completion location as the same location as the vehicle stop associated with the task. If you prefer, you can specify specific locations for individual tasks. For example, you might have a vehicle stop at a large complex to delivery a number of packages, each of which is assigned a specific mail delivery room.\n- **Close any previously assigned tasks** to leave them out of the updated ordering. See [Finalize tasks](/maps/documentation/mobility/fleet-engine/journeys/tasks/finalize-tasks) for details.\n\nSchedule or change delivery tasks\n\nYou can schedule or change tasks assigned to a vehicle from either a server\nenvironment, or by using the Driver SDK if you provide the driver the ability to\nmanage tasks using a trusted device. Use only one method so that you avoid race\nconditions and maintain a single source of truth.\n\nTo change a shipment from one vehicle to another, [close the original task](/maps/documentation/mobility/fleet-engine/journeys/tasks/finalize-tasks#close-task)\nand recreate it before assigning to a different vehicle. If you update a\ndelivery vehicle to include a task that is already assigned to a different\nvehicle, you get an error.\n| **Note:** When you schedule a number of tasks for a vehicle to complete at the same location, you should create a one-to-many association between a stop and the tasks associated with that stop location. Avoid creating a list of stop-task pairs where the stop location is the same for each pair in the list. This helps when you want to share the task status with your consumers using journey sharing. For example, if a driver is making many deliveries to a single office building, you would assign all the delivery tasks to a single vehicle stop.\n\nRequired fields for updating tasks\n\nThis section documents the required fields to set when updating a task for a\nvehicle. No optional fields are provided. Fleet engine ignores all other fields\nin the entity for the update.\n\n\u003cbr /\u003e\n\n| Required field | Value |\n|-----------------------------------------------------------|--------------------------------------------------------------------------------------------------------------------------|\n| `remainingVehicleJourneySegments` | A list of journey segments for tasks in the order they should be executed. The first task in the list is executed first. |\n| `remainingVehicleJourneySegments[i].stop` | The stop for task *i* in the list. |\n| `remainingVehicleJourneySegments[i].stop.plannedLocation` | The planned location for the stop. |\n| `remainingVehicleJourneySegments[i].stop.tasks` | A list of tasks to be performed at this vehicle stop. |\n| `remainingVehicleJourneySegments[i].stop.state` | `State.NEW` |\n\n\u003cbr /\u003e\n\nAssign tasks example\n\nThe following examples show how to use the [Java gRPC library](/maps/documentation/mobility/fleet-engine/essentials/client-libraries-tasks) and an HTTP\nREST call to `UpdateDeliveryVehicle` to add two new tasks for the vehicle. \n\ngRPC \n\n static final String PROJECT_ID = \"my-delivery-co-gcp-project\";\n static final String VEHICLE_ID = \"vehicle-8241890\";\n static final String TASK1_ID = \"task-756390\";\n static final String TASK2_ID = \"task-849263\";\n\n DeliveryServiceBlockingStub deliveryService =\n DeliveryServiceGrpc.newBlockingStub(channel);\n\n // Vehicle settings\n String vehicleName = \"providers/\" + PROJECT_ID + \"/deliveryVehicles/\" + VEHICLE_ID;\n DeliveryVehicle deliveryVehicle = DeliveryVehicle.newBuilder()\n .addRemainingVehicleJourneySegments(VehicleJourneySegment.newBuilder() // 1st stop\n .setStop(VehicleStop.newBuilder()\n .setPlannedLocation(LocationInfo.newBuilder()\n .setPoint(LatLng.newBuilder()\n .setLatitude(37.7749)\n .setLongitude(122.4194)))\n .addTasks(TaskInfo.newBuilder().setTaskId(TASK1_ID))\n .setState(VehicleStop.State.NEW)))\n .addRemainingVehicleJourneySegments(VehicleJourneySegment.newBuilder() // 2nd stop\n .setStop(VehicleStop.newBuilder()\n .setPlannedLocation(LocationInfo.newBuilder()\n .setPoint(LatLng.newBuilder()\n .setLatitude(37.3382)\n .setLongitude(121.8863)))\n .addTasks(TaskInfo.newBuilder().setTaskId(TASK2_ID))\n .setState(VehicleStop.State.NEW)))\n .build();\n\n // DeliveryVehicle request\n UpdateDeliveryVehicleRequest updateDeliveryRequest =\n UpdateDeliveryVehicleRequest.newBuilder() // No need for the header\n .setName(vehicleName)\n .setDeliveryVehicle(deliveryVehicle)\n .setUpdateMask(FieldMask.newBuilder().addPaths(\"remaining_vehicle_journey_segments\"))\n .build();\n\n try {\n DeliveryVehicle updatedDeliveryVehicle =\n deliveryService.updateDeliveryVehicle(updateDeliveryVehicleRequest);\n } catch (StatusRuntimeException e) {\n Status s = e.getStatus();\n switch (s.getCode()) {\n case NOT_FOUND:\n break;\n case PERMISSION_DENIED:\n break;\n }\n return;\n }\n\nREST \n\n PATCH https://fleetengine.googleapis.com/v1/providers/\u003cproject_id\u003e/deliveryVehicles/\u003cid\u003e?updateMask=remainingVehicleJourneySegments`\n\n- *\\\u003cid\\\u003e* is a unique identifier for a delivery vehicle in your fleet\n for which you intend to update the task ordering. It is the identifier that\n you specified when creating the vehicle.\n\n- The request header must contain a field *Authorization* with the value\n *Bearer \\\u003ctoken\\\u003e* , where *\\\u003ctoken\\\u003e* is issued by your server\n according to the guidelines described in [Service account roles](/maps/documentation/mobility/fleet-engine/essentials/set-up-fleet/service-accounts) and\n [JSON Web tokens](/maps/documentation/mobility/fleet-engine/essentials/set-up-fleet/jwt).\n\n- The request body must contain a `DeliveryVehicle` entity\n\nExample `curl` command:\n**Note:** This command overwrites any `remainingVehicleJourneySegments` already set on the delivery vehicle. \n\n # Set JWT, PROJECT_ID, VEHICLE_ID, TASK1_ID, and TASK2_ID in the local\n # environment\n curl -X PATCH \"https://fleetengine.googleapis.com/v1/providers/${PROJECT_ID}/deliveryVehicles/${VEHICLE_ID}?updateMask=remainingVehicleJourneySegments\" \\\n -H \"Content-type: application/json\" \\\n -H \"Authorization: Bearer ${JWT}\" \\\n --data-binary @- \u003c\u003c EOM\n {\n \"remainingVehicleJourneySegments\": [\n {\n \"stop\": {\n \"state\": \"NEW\",\n \"plannedLocation\": {\n \"point\": {\n \"latitude\": 37.7749,\n \"longitude\": -122.084061\n }\n },\n \"tasks\": [\n {\n \"taskId\": \"${TASK1_ID}\"\n }\n ]\n }\n },\n {\n \"stop\": {\n \"state\": \"NEW\",\n \"plannedLocation\": {\n \"point\": {\n \"latitude\": 37.3382,\n \"longitude\": 121.8863\n }\n },\n \"tasks\": [\n {\n \"taskId\": \"${TASK2_ID}\"\n }\n ]\n }\n }\n ]\n }\n EOM\n\n| **Experimental:** As an experimental feature, the `LocationInfo` ([gRPC](/maps/documentation/mobility/fleet-engine/reference/tasks/rpc/maps.fleetengine.delivery.v1#locationinfo) or [REST](/maps/documentation/mobility/fleet-engine/reference/tasks/rest/v1/LocationInfo)) field now supports using `place` ([gRPC](/maps/documentation/mobility/fleet-engine/reference/tasks/rpc/maps.fleetengine.delivery.v1#maps.fleetengine.delivery.v1.LocationInfo.FIELDS.string.maps.fleetengine.delivery.v1.LocationInfo.place) or [REST](/maps/documentation/mobility/fleet-engine/reference/tasks/rest/v1/LocationInfo#FIELDS.place)), either alongside or instead of `LatLng`.\n\nWhat's next\n\n- [Update stop status](/maps/documentation/mobility/fleet-engine/journeys/tasks/update-stops)"]]