node.js - 尝试通过 Node js将zip文件上传到azure存储

Question

尝试使用nodejs将文件上传到azure存储blob，但面临 promise 问题。下面是我的代码在将 zip 文件上传到 azure blob 存储时遇到的问题，需要将此代码转换为回调函数或 .then 函数

var re = /\.zip/;

fs.readdir("/tmp/", function(err, files) {
    if (err) {
        console.log( "Could not list the directory.", err)
        process.exit( 1 )
    }
    console.log("files",files)
    
    var matches = files.filter( function(text) { return re.test(text) } )
    console.log("These are the files you have", matches)
    var numFiles = matches.length
    console.log(numFiles);

    if ( numFiles ) {
        // Read in the file, convert it to base64, store to S3

        for(let i = 0; i < numFiles; i++ ) {
    
          uploadFileToBlob(matches[i])
          .then((result: any) => {
              console.log('result');
              console.log(result);
            })
            .catch((error: any) => {
              console.log(error);
            });
        }
    }
})
const uploadFileToBlob = async (file: any) => {
          const { AbortController } = require("@azure/abort-controller");
          const { AnonymousCredential, BlobServiceClient, newPipeline } = require("@azure/storage-blob");
          const account = 'string';
          const accountSas = "sastoken";
          const localFilePath = file;
          const pipeline = newPipeline(new AnonymousCredential(), {
            // httpClient: MyHTTPClient, // A customized HTTP client implementing IHttpClient interface
            retryOptions: { maxTries: 4 }, // Retry options
            userAgentOptions: { userAgentPrefix: "AdvancedSample V1.0.0" }, // Customized telemetry string
            keepAliveOptions: {
              // Keep alive is enabled by default, disable keep alive by setting false
              enable: false
            }
          });
          const blobServiceClient = new BlobServiceClient(
            `https://${account}.blob.core.windows.net${accountSas}`,
            pipeline
          );
          const containerName = 'quickstart';
          const containerClient = blobServiceClient.getContainerClient(containerName);
          const blobName = file;
          const blockBlobClient = containerClient.getBlockBlobClient(blobName);
          console.log("blockBlobClient",blockBlobClient);
          try {
                  const result =await  blockBlobClient.uploadFile(localFilePath, {
                    blockSize: 4 * 1024 * 1024, // 4MB block size
                    concurrency: 20, // 20 concurrency
                    onProgress: (ev: any) => console.log(ev)
                  });
                  console.log("uploadFile succeeds");
                  return result;
                } catch (err) {
                  console.log(
                    `uploadFile failed, requestId - ${err.details.requestId}, statusCode - ${err.statusCode}, errorCode - ${err.details.errorCode}`
                  );
                  throw err;
                }
}

获取输出

Promise { <pending> }

我尝试在回调函数或 .then 函数中编写代码，但出现相同的错误，并且相同的代码在本地计算机上运行

Answer 1

请更改以下代码行:

await blockBlobClient.uploadFile(localFilePath, {
  blockSize: 4 * 1024 * 1024, // 4MB block size
  concurrency: 20, // 20 concurrency
  onProgress: (ev) => console.log(ev)
});
console.log("uploadFile succeeds");

至

const result = await blockBlobClient.uploadFile(localFilePath, {
  blockSize: 4 * 1024 * 1024, // 4MB block size
  concurrency: 20, // 20 concurrency
  onProgress: (ev) => console.log(ev)
});
console.log("uploadFile succeeds");
return result;

然后调用您的 uploadFileToBlob 方法，如下所示:

uploadFileToBlob('filename.zip')
.then((result) => {
  console.log('result');
  console.log(result);
})
.catch((error) => {
  console.log(error);
});

更新

这是我使用的完整代码。我能够成功上传文件:

const uploadFileToBlob = async (file) => {
    const { AbortController } = require("@azure/abort-controller");
    const { AnonymousCredential, BlobServiceClient, newPipeline } = require("@azure/storage-blob");
    const account = 'account-name';
    const accountSas = '?sv=2020-04-08&ss=b&srt=sco&se=2021-03-08T18%3A30%3A00Z&sp=rwdxftlacup&sig=pT1d1NJQdu3bcnPA37voTCyQ6jKnmNVYgo1wyiYspDc%3D';
    const localFilePath = file;
    const pipeline = newPipeline(new AnonymousCredential(), {
      // httpClient: MyHTTPClient, // A customized HTTP client implementing IHttpClient interface
      retryOptions: { maxTries: 4 }, // Retry options
      userAgentOptions: { userAgentPrefix: "AdvancedSample V1.0.0" }, // Customized telemetry string
      keepAliveOptions: {
        // Keep alive is enabled by default, disable keep alive by setting false
        enable: false
      }
    });
    const blobServiceClient = new BlobServiceClient(
      `https://${account}.blob.core.windows.net${accountSas}`,
      pipeline
    );
    const containerName = 'container-name';
    const containerClient = blobServiceClient.getContainerClient(containerName);
    const blobName = file;
    const blockBlobClient = containerClient.getBlockBlobClient(blobName);
    console.log("blockBlobClient",blockBlobClient);
    try {
      const result = await blockBlobClient.uploadFile(localFilePath, {
        blockSize: 4 * 1024 * 1024, // 4MB block size
        concurrency: 20, // 20 concurrency
        onProgress: (ev) => console.log(ev)
      });
      console.log("uploadFile succeeds");
      return result;
    } catch (err) {
      console.log(
        `uploadFile failed, requestId - ${err.details.requestId}, statusCode - ${err.statusCode}, errorCode - ${err.details.errorCode}`
      );
      throw err;
    }
}

uploadFileToBlob('filename.zip')
.then((result) => {
  console.log('result');
  console.log(result);
})
.catch((error) => {
  console.log(error);
});