在Autodesk Forge Design Automation SDK中创建AppBundle遇NoSuchKey错误

核心问题分析 #

你手动拼接的OSS对象URL未包含有效访问凭证，Design Automation服务无法直接访问私有OSS对象；另外如果使用临时Bucket，对象会被自动清理，也会触发该错误。

修复步骤 #

1. 使用持久化Bucket #

确保上传Zip包的Bucket是持久化类型（创建时指定PolicyKey.Persistent），临时Bucket（Transient）内的对象会在24小时后被自动删除，后续访问必然失败。

2. 使用正确的Package地址（二选一） #

不要手动拼接OSS URL，改用以下两种官方推荐的方式：

方式一：使用对象URN（推荐）

直接使用上传接口返回的objectId（URN格式），Design Automation服务可内部访问该对象，无需额外签名：

dynamic uploadResponse = await objectsApi.UploadObjectAsync(
    bucketKey,
    objectKey,
    (int)fileStream.Length,
    fileStream,
    "application/zip"
);

// 用objectId作为Package字段值
var newVersion = new AppBundle
{
    Id = fullyQualifiedId,
    Engine = $"Autodesk.Revit+{yearVersion}",
    Package = uploadResponse.objectId,
    Description = $"App bundle for Revit {yearVersion}",
};

方式二：使用签名URL

生成带有效期的签名URL，确保Design Automation服务能访问到对象：

// 上传对象后生成签名URL（有效期1天）
var signedUrlResponse = await objectsApi.CreateSignedResourceAsync(
    bucketKey,
    objectKey,
    new PostBucketsBucketKeyObjectsObjectKeySignedPost { Access = "read", Expires = 86400 }
);

// 用签名URL作为Package字段值
var newVersion = new AppBundle
{
    Id = fullyQualifiedId,
    Engine = $"Autodesk.Revit+{yearVersion}",
    Package = signedUrlResponse.SignedUrl,
    Description = $"App bundle for Revit {yearVersion}",
};

3. 补充认证权限 #

认证时需添加Scope.DesignAutomation权限，确保服务间的访问权限有效：

dynamic tokenResponse = await auth.AuthenticateAsync(
    ClientId,
    ClientSecret,
    oAuthConstants.CLIENT_CREDENTIALS,
    new[] { Scope.DataRead, Scope.DataWrite, Scope.DesignAutomation }
);

4. 验证对象状态 #

创建Alias后，可调用以下接口确认OSS对象仍存在：

// 检查对象是否存在
var objectDetails = await objectsApi.GetObjectDetailsAsync(bucketKey, objectKey);

完整修正代码示例 #

var auth = new TwoLeggedApi();
dynamic tokenResponse = await auth.AuthenticateAsync(
    ClientId,
    ClientSecret,
    oAuthConstants.CLIENT_CREDENTIALS,
    new[] { Scope.DataRead, Scope.DataWrite, Scope.DesignAutomation }
);

var objectsApi = new ObjectsApi { Configuration = { AccessToken = tokenResponse.access_token } };

using var fileStream = new FileStream(zipFilePath, FileMode.Open, FileAccess.Read);

dynamic uploadResponse = await objectsApi.UploadObjectAsync(
    bucketKey,
    objectKey,
    (int)fileStream.Length,
    fileStream,
    "application/zip"
);

string fullyQualifiedId = $"{_account}.{bundleId}";
var newVersion = new AppBundle
{
    Id = fullyQualifiedId,
    Engine = $"Autodesk.Revit+{yearVersion}",
    Package = uploadResponse.objectId,
    Description = $"App bundle for Revit {yearVersion}",
};

AppBundle bundle = await _daClient.CreateAppBundleAsync(newVersion);

// 创建并激活Alias
var alias = new AppBundleAlias
{
    Id = "prod",
    Version = fullyQualifiedId,
    Status = AppBundleAliasStatus.Active
};
await _daClient.CreateAppBundleAliasAsync(_account, alias.Id, alias);

内容的提问来源于stack exchange，提问作者Ran P