删除一个路由

此示例会删除项目中的路由。

深入探索

如需查看包含此代码示例的详细文档，请参阅以下内容：

• 使用路由

代码示例

Go

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

如需向 Compute Engine 进行身份验证，请设置应用默认凭据。 如需了解详情，请参阅为本地开发环境设置身份验证。

import (
	"context"
	"fmt"
	"io"

	compute "cloud.google.com/go/compute/apiv1"
	computepb "cloud.google.com/go/compute/apiv1/computepb"
)

// deleteRoute deletes a route by name in given project.
func deleteRoute(w io.Writer, projectID, name string) error {
	// projectID := "your_project_id"
	// name := "testname"

	ctx := context.Background()
	client, err := compute.NewRoutesRESTClient(ctx)
	if err != nil {
		return fmt.Errorf("NewRoutesRESTClient: %w", err)
	}
	defer client.Close()

	req := &computepb.DeleteRouteRequest{
		Project: projectID,
		Route:   name,
	}
	op, err := client.Delete(ctx, req)

	if err != nil {
		return fmt.Errorf("unable to delete a route: %w", err)
	}

	if err := op.Wait(ctx); err != nil {
		return fmt.Errorf("unable to wait for the operation: %w", err)
	}

	fmt.Fprintf(w, "Route deleted\n")

	return nil
}

Java

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

如需向 Compute Engine 进行身份验证，请设置应用默认凭据。 如需了解详情，请参阅为本地开发环境设置身份验证。

import com.google.cloud.compute.v1.DeleteRouteRequest;
import com.google.cloud.compute.v1.RoutesClient;
import java.io.IOException;
import java.util.UUID;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.TimeoutException;

public class DeleteRoute {

  public static void main(String[] args)
          throws IOException, ExecutionException, InterruptedException, TimeoutException {
    // TODO(developer): Replace these variables before running the sample.
    // Project ID or project number of the Cloud project you want to use.
    String projectId = "your-project-id";
    // Route name you want to delete.
    String routeName = "your-route-name";

    deleteRoute(projectId, routeName);
  }

  // Deletes a route from a project.
  public static void deleteRoute(String projectId, String routeName)
          throws IOException, ExecutionException, InterruptedException, TimeoutException {
    // Initialize client that will be used to send requests. This client only needs to be created
    // once, and can be reused for multiple requests.
    try (RoutesClient routesClient = RoutesClient.create()) {
      DeleteRouteRequest request = DeleteRouteRequest.newBuilder()
              .setProject(projectId)
              .setRoute(routeName)
              .setRequestId(UUID.randomUUID().toString())
              .build();
      routesClient.deleteCallable().futureCall(request).get(30, TimeUnit.SECONDS);
    }
  }
}

Python

试用此示例之前，请按照《Compute Engine 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 Compute Engine Python API 参考文档。

如需向 Compute Engine 进行身份验证，请设置应用默认凭据。 如需了解详情，请参阅为本地开发环境设置身份验证。

from __future__ import annotations

import sys
from typing import Any

from google.api_core.extended_operation import ExtendedOperation
from google.cloud import compute_v1


def wait_for_extended_operation(
    operation: ExtendedOperation, verbose_name: str = "operation", timeout: int = 300
) -> Any:
    """
    Waits for the extended (long-running) operation to complete.

    If the operation is successful, it will return its result.
    If the operation ends with an error, an exception will be raised.
    If there were any warnings during the execution of the operation
    they will be printed to sys.stderr.

    Args:
        operation: a long-running operation you want to wait on.
        verbose_name: (optional) a more verbose name of the operation,
            used only during error and warning reporting.
        timeout: how long (in seconds) to wait for operation to finish.
            If None, wait indefinitely.

    Returns:
        Whatever the operation.result() returns.

    Raises:
        This method will raise the exception received from `operation.exception()`
        or RuntimeError if there is no exception set, but there is an `error_code`
        set for the `operation`.

        In case of an operation taking longer than `timeout` seconds to complete,
        a `concurrent.futures.TimeoutError` will be raised.
    """
    result = operation.result(timeout=timeout)

    if operation.error_code:
        print(
            f"Error during {verbose_name}: [Code: {operation.error_code}]: {operation.error_message}",
            file=sys.stderr,
            flush=True,
        )
        print(f"Operation ID: {operation.name}", file=sys.stderr, flush=True)
        raise operation.exception() or RuntimeError(operation.error_message)

    if operation.warnings:
        print(f"Warnings during {verbose_name}:\n", file=sys.stderr, flush=True)
        for warning in operation.warnings:
            print(f" - {warning.code}: {warning.message}", file=sys.stderr, flush=True)

    return result


def delete_route(project_id: str, route_name: str) -> None:
    """
    Delete a route in project.

    Args:
        project_id: project ID or project number of the Cloud project you want to use.
        route_name: name of the route to delete.
    """

    route_client = compute_v1.RoutesClient()
    operation = route_client.delete(project=project_id, route=route_name)

    wait_for_extended_operation(operation, "route deletion")

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。