创建预留分配

创建分配，以将项目、文件夹或组织映射到 BigQuery 预留。

代码示例

Node.js

试用此示例之前，请按照 BigQuery 快速入门：使用客户端库中的 Node.js 设置说明进行操作。 如需了解详情，请参阅 BigQuery Node.js API 参考文档。

如需向 BigQuery 进行身份验证，请设置应用默认凭证。如需了解详情，请参阅为客户端库设置身份验证。

const {
  ReservationServiceClient,
} = require('@google-cloud/bigquery-reservation').v1;
const {status} = require('@grpc/grpc-js');

const client = new ReservationServiceClient();

/**
 * Creates an assignment to assign a project to a reservation.
 * A reservation assignment lets a project submit jobs of a certain type
 * using slots from the specified reservation.
 *
 * @param {string} projectId Google Cloud Project ID that owns the reservation, for example 'example-project-id'.
 * @param {string} location Google Cloud Location, for example 'us-central1'.
 * @param {string} reservationId The ID of the reservation to which the project will be assigned, for example 'example-reservation'.
 */
async function createAssignment(
  projectId,
  location = 'us-central1',
  reservationId = 'example-reservation',
) {
  const parent = client.reservationPath(projectId, location, reservationId);
  const request = {
    parent,
    assignment: {
      assignee: `projects/${projectId}`,
      jobType: 'QUERY',
    },
  };

  try {
    const [assignment] = await client.createAssignment(request);
    console.log(`Created assignment: ${assignment.name}`);
    console.log(`  Assignee: ${assignment.assignee}`);
    console.log(`  Job Type: ${assignment.jobType}`);
  } catch (err) {
    if (err.code === status.ALREADY_EXISTS) {
      console.log(
        `Assignment for project ${projectId} to reservation ${reservationId} already exists.`,
      );
    } else {
      console.error('Error creating assignment:', err);
    }
  }
}

Python

试用此示例之前，请按照 BigQuery 快速入门：使用客户端库中的 Python 设置说明进行操作。 如需了解详情，请参阅 BigQuery Python API 参考文档。

如需向 BigQuery 进行身份验证，请设置应用默认凭证。如需了解详情，请参阅为客户端库设置身份验证。

from google.api_core import exceptions
from google.cloud import bigquery_reservation_v1

client = bigquery_reservation_v1.ReservationServiceClient()


def create_assignment(project_id: str, location: str, reservation_id: str):
    """Creates a new assignment for a reservation.

    This shows how to create an assignment that gives a project access to
    a reservation.

    Args:
        project_id: The Google Cloud project ID of the reservation owner.
        location: The geographic location of the reservation, for example, "US".
        reservation_id: The ID of the reservation to create the assignment in.
    """

    parent = client.reservation_path(project_id, location, reservation_id)
    assignee = f"projects/{project_id}"
    assignment = bigquery_reservation_v1.Assignment(
        assignee=assignee,
        job_type=bigquery_reservation_v1.Assignment.JobType.QUERY,
    )

    try:
        created_assignment = client.create_assignment(
            parent=parent, assignment=assignment
        )
        print(f"Created assignment: {created_assignment.name}")
    except exceptions.AlreadyExists:
        print(f"Assignment for project {project_id} and job type QUERY already exists.")

后续步骤

如需搜索和过滤其他 Google Cloud 产品的代码示例，请参阅Google Cloud 示例浏览器。