Azure Function 如何将 JSON 转换为 Excel 并将其保存到 blob 存储答案

【问题标题】：Azure Function how to convert JSON to Excel and save it to blob storageAzure Function 如何将 JSON 转换为 Excel 并将其保存到 blob 存储
【发布时间】：2021-02-03 10:16:17
【问题描述】：

我想知道，在运行此 js 代码时，如何将生成的 Excel 文件保存到 blob 存储中。请问，您知道如何执行类似 fs.safeFileSync 的东西吗？

const fs = require('fs');
var json2xls = require('json2xls');
var json = {
    foo: 'bar',
    qux: 'moo',
    poo: 123,
    stux: "tester"
}

var pole = [];

pole.push(json);
pole.push(json);
pole.push(json);
pole.push(json);

var xls = json2xls(pole);

console.log("done, saved", xls);
fs.writeFileSync('data.xlsx', xls, 'binary'); //this saves file to disk, but I need to save it to a blob storage with the function below
context.bindings.outputBlob = ??????

【问题讨论】：

您是否尝试过将xls 变量传递给context.bindings.outputBlob？
是的，我有。它确实通过了文件，但它说，文件已损坏

标签： javascript node.js azure-functions azure-blob-storage

【解决方案1】：

如果有人感兴趣，我是这样解决的：

const csval = require("csval");
var json2xls = require('json2xls');
var fs = require('fs');
const { BlobServiceClient } = require('@azure/storage-blob');
const AZURE_STORAGE_CONNECTION_STRING = process.env.storageCred;

module.exports = async function (context, myQueueItem) {

    context.log('JavaScript queue trigger function processed work item', myQueueItem);
    const blobServiceClient = BlobServiceClient.fromConnectionString(AZURE_STORAGE_CONNECTION_STRING);

    var json = {
        foo: 'bar',
        qux: 'moo',
        poo: 123,
        stux: new Date()
    }


    var arry = [];
    arry.push(json);
    arry.push(json);

    var xls = json2xls(arry); 
    const data = Buffer.from(xls,'binary')
    const blobName = "excelfile.xls";
 

    const containerClient = blobServiceClient.getContainerClient("incontainer");
    const blockBlobClient = containerClient.getBlockBlobClient(blobName);
    const uploadBlobResponse = await blockBlobClient.upload(data, data.length);

    context.log("done")
};

【讨论】：