node.js - 如何将图像和文件上传到 Azure Blob Node.js

Question

我在 Angular 中有带有前端的 node.js 应用程序 我需要将文件和图像上传到 Azure blob 我已经创建了容器并根据 MS 文档设置了环境（https://docs.microsoft.com/en-us/azure/storage /blob/storage-quickstart-blob-nodejs )

v12 版本。

我的函数用于创建创建的文件并将其上传到 Azure Blob，我不知道如何将发布的文件从客户端上传到 Azure Blob，下面是我在 Node.js TypeScript 中的代码

  import * as formidable from 'formidable';
  import * as fs from 'fs';

  const { BlobServiceClient } = require('@azure/storage-blob');
  const uuidv1 = require('uuid/v1');
  const dotenv = require('dotenv');
  dotenv.config();

class BlobController {

    private AZURE_STORAGE_CONNECTION_STRING = process.env.CONSTRINGBlob;

   constructor(router) {
    router.post('/file', this.uploadFile.bind(this));
  }
 //----Get Lookup tables dynamically-----------//
 async uploadFile(req, res) {

    const blobServiceClient = await BlobServiceClient.fromConnectionString(this.AZURE_STORAGE_CONNECTION_STRING);
    // Create a unique name for the container
    //const containerName = 'quickstart' + uuidv1();
    const containerName = blobServiceClient.getContainerClient('mycontainer');
    console.log('\t', containerName.containerName);
    // Get a reference to a container
    const containerClient = await blobServiceClient.getContainerClient(containerName.containerName);
    let form = new formidable.IncomingForm();
    form.parse(req, async function (err, fields, files) {
        const blobName = 'test' + uuidv1() + files.file;
        // Get a block blob client
        const blockBlobClient = containerClient.getBlockBlobClient(blobName);
        console.log('\nUploading to Azure storage as blob:\n\t', blobName);
        // Upload data to the blob
        const data = 'Hello test';
        const uploadBlobResponse = await blockBlobClient.upload(data, data.length);
        console.log("Blob was uploaded successfully. requestId: ", uploadBlobResponse.requestId);
    });
 }
}

module.exports = BlobController

谁能帮助我如何使用 Node.js 上传发布到 Azure blob 的文件

标签： node.jsazureazure-blob-storage

Answer 1

你快到了:)。

请更改您的以下代码：

form.parse(req, async function (err, fields, files) {
        const blobName = 'test' + uuidv1() + files.file;
        // Get a block blob client
        const blockBlobClient = containerClient.getBlockBlobClient(blobName);
        console.log('\nUploading to Azure storage as blob:\n\t', blobName);
        // Upload data to the blob
        const data = 'Hello test';
        const uploadBlobResponse = await blockBlobClient.upload(data, data.length);
        console.log("Blob was uploaded successfully. requestId: ", uploadBlobResponse.requestId);
    });

至：

  form.parse(req, async function (err, fields, files) {
    const file = files.file;
    const blobName = 'test' + uuidv1() + files.file;
    const contentType = file.type;
    const filePath = file.path;//This is where you get the file path.
    const blockBlobClient = containerClient.getBlockBlobClient(blobName);
    const uploadBlobResponse = await blockBlobClient.uploadFile(filePath);
  });