删除上下文缓存

如要删除上下文缓存，您需要提供其缓存 ID、与该上下文缓存关联的 Google Cloud 项目 ID，以及处理该上下文缓存创建请求的区域。创建上下文缓存时，系统会返回上下文缓存的缓存 ID。您还可以使用上下文缓存列出命令获取与项目关联的每个上下文缓存的缓存 ID。

删除上下文缓存示例

以下示例展示了如何删除上下文缓存。

Gen AI SDK for Python

安装

pip install --upgrade google-genai

如需了解详情，请参阅 SDK 参考文档。

设置环境变量以将 Gen AI SDK 与 Vertex AI 搭配使用： 

# Replace the `GOOGLE_CLOUD_PROJECT` and `GOOGLE_CLOUD_LOCATION` values # with appropriate values for your project. export GOOGLE_CLOUD_PROJECT=GOOGLE_CLOUD_PROJECT export GOOGLE_CLOUD_LOCATION=us-central1 export GOOGLE_GENAI_USE_VERTEXAI=True
 

from google import genai from google.genai.types import HttpOptions  client = genai.Client(http_options=HttpOptions(api_version="v1beta1"))  # Delete content cache using name # E.g cache_name = 'projects/111111111111/locations/us-central1/cachedContents/1111111111111111111' client.caches.delete(name=cache_name) print("Deleted Cache", cache_name) # Example response #   Deleted Cache projects/111111111111/locations/us-central1/cachedContents/1111111111111111111

Gen AI SDK for Go

了解如何安装或更新 Gen AI SDK for Go。

如需了解详情，请参阅 SDK 参考文档。

设置环境变量以将 Gen AI SDK 与 Vertex AI 搭配使用： 

# Replace the `GOOGLE_CLOUD_PROJECT` and `GOOGLE_CLOUD_LOCATION` values # with appropriate values for your project. export GOOGLE_CLOUD_PROJECT=GOOGLE_CLOUD_PROJECT export GOOGLE_CLOUD_LOCATION=us-central1 export GOOGLE_GENAI_USE_VERTEXAI=True
 

import ( 	"context" 	"fmt" 	"io"  	genai "google.golang.org/genai" )  // deleteContentCache shows how to delete content cache. func deleteContentCache(w io.Writer, cacheName string) error { 	ctx := context.Background()  	client, err := genai.NewClient(ctx, &genai.ClientConfig{ 		HTTPOptions: genai.HTTPOptions{APIVersion: "v1beta1"}, 	}) 	if err != nil { 		return fmt.Errorf("failed to create genai client: %w", err) 	}  	_, err = client.Caches.Delete(ctx, cacheName, &genai.DeleteCachedContentConfig{}) 	if err != nil { 		return fmt.Errorf("failed to delete content cache: %w", err) 	}  	fmt.Fprintf(w, "Deleted cache %q\n", cacheName)  	// Example response: 	// Deleted cache "projects/111111111111/locations/us-central1/cachedContents/1111111111111111111"  	return nil }

REST

以下示例展示了如何使用 REST 通过向发布方模型端点发送 DELETE 请求来删除与 Google Cloud 项目关联的上下文缓存。

在使用任何请求数据之前，请先进行以下替换：

  • PROJECT_ID：您的项目 ID。
  • LOCATION：处理上下文缓存创建请求并存储缓存内容的区域。
  • CACHE_ID：要删除的上下文缓存的 ID。创建上下文缓存时，系统会返回上下文缓存 ID。您还可以通过列出 Google Cloud 项目使用的上下文缓存来查找上下文缓存 ID。如需了解详情，请参阅创建上下文缓存和列出上下文缓存。

HTTP 方法和网址：

DELETE https://LOCATION-aiplatform.googleapis.com/v1/projects/PROJECT_ID/locations/LOCATION/cachedContents/CACHE_ID

如需发送请求，请选择以下方式之一：

curl

执行以下命令：

curl -X DELETE \
     -H "Authorization: Bearer $(gcloud auth print-access-token)" \
     "https://LOCATION-aiplatform.googleapis.com/v1/projects/PROJECT_ID/locations/LOCATION/cachedContents/CACHE_ID"

PowerShell

执行以下命令：

$cred = gcloud auth print-access-token
$headers = @{ "Authorization" = "Bearer $cred" }

Invoke-WebRequest `
    -Method DELETE `
    -Headers $headers `
    -Uri "https://LOCATION-aiplatform.googleapis.com/v1/projects/PROJECT_ID/locations/LOCATION/cachedContents/CACHE_ID" | Select-Object -Expand Content

如果删除操作成功，响应为空：

示例 curl 命令

LOCATION="us-central1" PROJECT_ID="PROJECT_ID" CACHE_ID="CACHE_ID"  curl \ -X DELETE \ -H "Authorization: Bearer $(gcloud auth print-access-token)" \ https://${LOCATION}-aiplatform.googleapis.com/v1/projects/${PROJECT_ID}/locations/${LOCATION}/${CACHE_ID}

后续步骤