将 Bearer 令牌与 azure-sdk-for-js 一起使用

Question

我们正在构建一个 nodejs 服务器，它使用 AAD 对用户进行身份验证。当用户登录到我们的应用程序。

我们如何使用此令牌进行调用以使用此 javascriptAPI 获取 blobs/containers？我不想使用 (Authorization: Bearer accessToken[=35= 向 API 发出直接 ajax 请求]) 来电。

这样的邮递员打电话成功了吗？如何使用 blobServiceClient?
以编程方式执行此操作

Answer 1

根据我的研究，如果我们使用V10版本的SDK@azure/storage-blob我们可以直接使用Azure AD access token来管理azure blob服务。因为sdk提供了classTokenCredential。我们可以使用代码 const tokenCredential = new azure.TokenCredential("token") 来初始化凭证，然后使用它来获取 blob。

例如

const azure = require("@azure/storage-blob"); 

async function getBlobContent(){

    const tokenCredential = new azure.TokenCredential("")
    const pipeline =  azure.StorageURL.newPipeline(tokenCredential)
    const serviceURL = new azure.ServiceURL(`https://jimtestperfdiag516.blob.core.windows.net`, pipeline);
    const containerURL = azure.ContainerURL.fromServiceURL(serviceURL, "test");
    const blockBlobURL = azure.BlockBlobURL.fromContainerURL(containerURL, "test.csv");
    const aborter=azure.Aborter.timeout(30* 60 * 1000)
    const downloadResponse = await blockBlobURL.download(aborter, 0);
    const downloadedContent = await streamToString(downloadResponse.readableStreamBody);
    console.log(`Downloaded blob content: "${downloadedContent}"`);



}

async function streamToString(readableStream) {
    return new Promise((resolve, reject) => {
      const chunks = [];
      readableStream.on("data", data => {
        chunks.push(data.toString());
      });
      readableStream.on("end", () => {
        resolve(chunks.join(""));
      });
      readableStream.on("error", reject);
    });
}

getBlobContent()
  .then(() => {
    console.log("Successfully executed sample.");
  })
  .catch((err) => {
    console.log(err.message);
  });

详情请参考https://www.npmjs.com/package/@azure/storage-blob/v/10.5.0 and https://docs.microsoft.com/en-us/azure/storage/blobs/storage-quickstart-blobs-nodejs-legacy。

此外，请注意，如果您想使用 Azure AD 访问 azure blob，我们需要为用户或服务分配 RABS 角色（Storage Blob Data Owner Storage Blob Data Contributor 或 Storage Blob Data Reader）校长：https://docs.microsoft.com/en-us/azure/storage/common/storage-auth-aad

Answer 2

对于 v12 Storage JS SDK，您将从 @azure/core-auth

实现 TokenCredential 接口

/**
 * Represents a credential capable of providing an authentication token.
 */
export interface TokenCredential {
  /**
   * Gets the token provided by this credential.
   *
   * @param scopes The list of scopes for which the token will have access.
   * @param options The options used to configure any requests this
   *                TokenCredential implementation might make.
   */
  getToken(scopes: string | string[], options?: GetTokenOptions): Promise<AccessToken | null>;
}

一个简单的例子：

const { ContainerClient } = require("@azure/storage-blob");

const url = "<url to container>";

function TestTokenCredential() {
  return {
    getToken: function (_scope, _opts) {
      return {
        token: "<access token>",
        expiresOnTimestamp: Date.now() + 60 * 60 * 1000,
      };
    },
  };
}

const containerClient = new ContainerClient(url, new TestTokenCredential());

async function main() {
  for await (const blob of containerClient.listBlobsFlat()) {
    console.log(blob.name);
  }
}

main().catch((error) => {
  console.error(error);
});

将 Bearer 令牌与 azure-sdk-for-js 一起使用

Using Bearer tokens along with azure-sdk-for-js

azure

azure-active-directory

azure-storage

azure-blob-storage

azure-container-service