asp.net - AWS 对象失效 -/如何确定图像是否从 Edge 中删除

Question

我想要使根目录和 http://docs.aws.amazon.com/AmazonCloudFront/latest/DeveloperGuide/Invalidation.html#invalidation-specifying-objects 无效

它说我们可以使用通配符

假设我们有这样的路径

https://cdn_url/rootimage/first/1/type/1.png

https://cdn_url/rootimage/first/1/type/2.png

https://cdn_url/rootimage/first/2/type/1.png

https://cdn_url/rootimage/first/2/type/2.png

https://cdn_url/rootimage/second/1/type/1.png

https://cdn_url/rootimage/second/1/type/2.png

https://cdn_url/rootimage/second/2/type/1.png

https://cdn_url/rootimage/second/1/type/2.png

所以如果我写

 AmazonCloudFrontClient objClient = new AmazonCloudFrontClient(ConfigurationManager.AppSettings["s3accesskey"], ConfigurationManager.AppSettings["s3secret"]);
        objClient.CreateInvalidation(new CreateInvalidationRequest
        {
            DistributionId = ConfigurationManager.AppSettings["CDNDistributionId"],
            InvalidationBatch = new InvalidationBatch 
            { 
                Paths = new Paths { Items = "/cdn_url/rootimage/*", Quantity = 1 } 
            }
        });

上面的代码可以工作吗？那么“数量”是 1 还是所有实际图像的数量。

如何验证失效是否已完成。

我也在门户上手动尝试过，几分钟后我看到它说失效已完成，我如何确定图像是否已从 Edge 中删除。

谢谢

Answer 1

经过大量挖掘，看来，

可以使用图像标题响应

Connection
keep-alive Date
Mon, 15 Feb 2016 09:54:40 GMT Etag
"8239143f88d513feb78b025c5d4e1da7" Last-Modified
Fri, 12 Feb 2016 05:32:30 GMT Server
AmazonS3 Via 1.1 cldfrontUrl.ddfds (CloudFront) X-Amz-Cf-Id NKGtNTaLYGepIJ9Vjc1xgtQGn4AuhukYutQBDtSRPIyTGBDwLcxXgA== X-Cache Miss from cloudfront

如果是这样

Miss from cloudfront // Object is not in edge..

和

Hit from cloudfront //Object is in edge..