批量创建任务

本文档介绍了如何使用 gRPC 或 REST 从服务器环境中创建一批任务。如需详细了解如何创建任务，请参阅：

用于批量创建任务的任务字段

批量创建任务时，requests 中的每个 CreateTasksRequest 元素都必须通过与单个任务的 CreateTask 请求相同的验证规则，但 parent 和 header 字段是可选的。如果设置了这些字段，它们必须与顶层 BatchCreateTasksRequest 中的相应字段完全相同。

如需了解详情，请参阅 BatchCreateTasks 的 API 参考文档（适用于 gRPC 或 REST）。

必需的批处理字段

字段值
请求 Array<CreateTasksRequest>

可选的批处理任务字段

字段值
header DeliveryRequestHeader

创建一批任务

以下示例展示了如何使用 Java gRPC 库创建取货和送货任务，以及如何向 BatchCreateTask 发出 HTTP REST 请求。如需了解正确的 JWT 语法，请参阅 JWT 元素。

gRPC

static final String PROJECT_ID = "my-delivery-co-gcp-project";

DeliveryServiceBlockingStub deliveryService =
  DeliveryServiceGrpc.newBlockingStub(channel);

// Delivery Task settings
Task deliveryTask = Task.newBuilder()
  .setType(Task.Type.DELIVERY)
  .setState(Task.State.OPEN)
  .setTrackingId("delivery-tracking-id")
  .setPlannedLocation(               // Grand Indonesia East Mall
    LocationInfo.newBuilder().setPoint(
      LatLng.newBuilder().setLatitude(-6.195139).setLongitude(106.820826)))
  .setTaskDuration(
    Duration.newBuilder().setSeconds(2 * 60))
  .build();

// Delivery Task request
CreateTaskRequest createDeliveryTaskRequest =
  CreateTaskRequest.newBuilder()  // No need for the header or parent fields
      .setTaskId("task-8312508")  // Task ID assigned by the Provider
      .setTask(deliveryTask)      // Initial state
      .build();

// Pickup Task settings
Task pickupTask = Task.newBuilder()
  .setType(Task.Type.PICKUP)
  .setState(Task.State.OPEN)
  .setTrackingId("pickup-tracking-id")
  .setPlannedLocation(               // Grand Indonesia East Mall
    LocationInfo.newBuilder().setPoint(
      LatLng.newBuilder().setLatitude(-6.195139).setLongitude(106.820826)))
  .setTaskDuration(
    Duration.newBuilder().setSeconds(2 * 60))
  .build();

// Pickup Task request
CreateTaskRequest createPickupTaskRequest =
  CreateTaskRequest.newBuilder()  // No need for the header or parent fields
      .setTaskId("task-8241890")  // Task ID assigned by the Provider
      .setTask(pickupTask)        // Initial state
      .build();

// Batch Create Tasks settings
String parent = "providers/" + PROJECT_ID;

// Batch Create Tasks request
BatchCreateTasksRequest batchCreateTasksRequest =
  BatchCreateTasksRequest.newBuilder()
      .setParent(parent)
      .addRequests(createDeliveryTaskRequest)
      .addRequests(createPickupTaskRequest)
      .build();

// Error handling
// If Fleet Engine does not have any task(s) with these task ID(s) and the
// credentials of the requestor pass, the service creates the task(s)
// successfully.

try {
  BatchCreateTasksResponse createdTasks = deliveryService.batchCreateTasks(
    batchCreateTasksRequest);
} catch (StatusRuntimeException e) {
  Status s = e.getStatus();
  switch (s.getCode()) {
    case ALREADY_EXISTS:
      break;
    case PERMISSION_DENIED:
      break;
  }
  return;
}

REST

如需从服务器环境创建配送和取货任务，请向 BatchCreateTasks 发出 HTTP REST 调用：

POST https://fleetengine.googleapis.com/v1/providers/<project_id>/batchCreate

<id> 是任务的唯一标识符。

请求标头必须包含一个 Authorization 字段，其值为 Bearer <token>，其中 <token> 是由您的服务器根据服务账号角色和 JSON Web 令牌中所述的准则颁发的。

请求正文必须包含 BatchCreateTasksRequest 实体。

示例 curl 命令：

# Set $JWT, $PROJECT_ID, $DELIVERY_TRACKING_ID, $DELIVERY_TASK_ID,
# $PICKUP_TRACKING_ID, and $PICKUP_TASK_ID in the local environment
curl -X POST "https://fleetengine.googleapis.com/v1/providers/${PROJECT_ID}/tasks:batchCreate" \
 -H "Content-type: application/json" \
 -H "Authorization: Bearer ${JWT}" \
 --data-binary @- << EOM
{
 "requests" : [
   {
     "taskId": "${DELIVERY_TASK_ID}",
     "task" : {
       "type": "DELIVERY",
       "state": "OPEN",
       "trackingId": "${DELIVERY_TRACKING_ID}",
       "plannedLocation": {
         "point": {
             "latitude": -6.195139,
             "longitude": 106.820826
         }
       },
       "taskDuration": "90s"
     }
   },
   {
     "taskId": "${PICKUP_TASK_ID}",
     "task" : {
       "type": "PICKUP",
       "state": "OPEN",
       "trackingId": "${PICKUP_TRACKING_ID}",
       "plannedLocation": {
         "point": {
             "latitude": -6.195139,
             "longitude": 106.820826
         }
       },
       "taskDuration": "90s"
     }
   }
 ]
}
EOM

后续步骤