列出预留

列出指定项目和位置中的所有 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();

/**
 * Lists all reservations for the project in the specified location.
 *
 * A reservation provides computational resource guarantees, in the form of
 * slots, to users.
 *
 * @param {string} projectId Google Cloud project ID. for example 'example-project-id'
 * @param {string} location Google Cloud location. for example 'us-central1'
 */
async function listReservations(projectId, location = 'us-central1') {
  const request = {
    parent: `projects/${projectId}/locations/${location}`,
  };

  try {
    const [reservations] = await client.listReservations(request);

    if (reservations.length === 0) {
      console.log(
        `No reservations found in project ${projectId} in location ${location}.`,
      );
      return;
    }

    console.log(
      `Reservations in project ${projectId} in location ${location}:`,
    );
    for (const reservation of reservations) {
      console.log(`- Reservation: ${reservation.name}`);
      console.log(`  Slot capacity: ${reservation.slotCapacity}`);
      console.log(`  Ignore idle slots: ${reservation.ignoreIdleSlots}`);
    }
  } catch (err) {
    if (err.code === status.NOT_FOUND) {
      console.log(`Project or location not found: ${request.parent}`);
    } else {
      console.error('An error occurred while listing reservations:', 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 list_reservations(project_id: str, location: str):
    """Lists all reservations for a project and location.

    A reservation provides computational resource guarantees, in the form of
    slots, to users. This sample shows how to list existing reservations
    within a specific project and location.

    Args:
        project_id: The Google Cloud project ID.
        location: The geographic location of the reservations, for example, us-central1.
    """

    parent = f"projects/{project_id}/locations/{location}"

    try:
        print(f"Listing reservations for parent: '{parent}':")
        for reservation in client.list_reservations(parent=parent):
            print(f"\tReservation: {reservation.name}")
            print(f"\tSlot capacity: {reservation.slot_capacity}")

        print("Finished listing reservations.")
    except exceptions.NotFound:
        print(
            f"Parent resource '{parent}' was not found. Please check your project ID and location."
        )

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。