如何使用Rest API在Google Cloud Storage中下载文件 [英] How to download files in Google Cloud Storage using rest api

问题描述

场景:与dcm API相关的存储桶中存储了多个文件夹和许多文件.(单击，展示，每日汇总文件等). https://console.cloud.google.com/storage/browser/dcmaccountno

Scenario: there are multiple folders and many files stored in storage bucket related to dcm API.(click,impression,daily aggregate files etc). https://console.cloud.google.com/storage/browser/dcmaccountno

是否可以使用rest api下载文件，当前我具有服务帐户和私钥. 我们对goog云存储没有太多了解，因此任何小小的帮助都是非常可观的.

Is it possible to download files using rest api and currently i have service account and private key. we dont have much exposure towards goog cloud storage hence any small help would be really appreciable.

谢谢您的帮助！

推荐答案

使用rest API，您可以按照以下链接中已经介绍的以下方式从Google存储空间下载/上传文件:

Using rest API you can download/upload files from google storage in the following way that I already did in the below-mentioned link:

参考: https://stackoverflow.com/a/53955058/4345389

您可以通过以下方式使用DownloadData方法来代替WebClient的UploadData方法:

Instead of UploadData method of WebClient, you can use DownloadData method in the following way:

// Create a new WebClient instance.
using (WebClient client= new WebClient())
{
  client.Headers.Add(HttpRequestHeader.Authorization, "Bearer " + bearerToken);
  client.Headers.Add(HttpRequestHeader.ContentType, "application/octet-stream");
// Download the Web resource and save it into a data buffer.
byte[] bytes = client.DownloadData(body.SourceUrl);
MemoryStream memoryStream = new MemoryStream(bytes);
// TODO write further funcitonality to write the memorystream
}

根据您的要求进行一些调整.

Do some tweaks as per your requirements.

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