如何通过 nodejs 在 S3 中创建 Excel 文件？

Question

我正在尝试创建一个脚本，该脚本将采用 JSON 对象并将其作为 xlsx 文件放入 S3 存储桶中

我计划将 SQL 查询集成到代码中，但现在将其限制为 JSON 以便于编码。我已经尝试使用 alasql 和 xlsx 来尝试创建 S3.putObject 主体，但输出创建了一个损坏的 excel 文件

var data = [{a:1,b:1,c:1},{a:1,b:2,c:1},{a:1,b:3,c:1}, {a:2,b:1,c:1}];
  var a = XLSX.utils.json_to_sheet(data);

  var params = {
  'Body' : Buffer.from(a),
  'Key': event.Key + '.xlsx',
  'Bucket': event.Bucket
};

s3.putObject(params).promise();

我希望数据将放置在 S3 存储桶中的 xlsx 文件中，并且在创建文件时，它已损坏

Answer 1

对我有用的是这个，使用sheetjs import xlsx from 'xlsx';：

        // initiate the workbook
        const wb = xlsx.utils.book_new();

        // add properties to the sheet
        wb.Props = {
          Title: 'Books Borrowed',
          Subject: 'Borrowed Books',
          Author: 'Admin',
          CreatedDate: '2020-04-23',
        };

        // add a sheet
        wb.SheetNames.push('Borrowed');

        // I used aoa_to_sheet because I'm having an issue with json_to_sheet but was able to create a workaround, see: https://github.com/SheetJS/sheetjs/issues/1487#issuecomment-618767784
        // I find the aoa_to_sheet a much cleaner approach
        const ws = xlsx.utils.aoa_to_sheet(sheet);
        wb.Sheets.Borrowed = ws;

        // generate output as buffer
        const wbOut = xlsx.write(wb, {
          bookType: 'xlsx',
          type: 'buffer',
        });

        // upload to S3
        const data = await s3
          .putObject({
            Bucket: config.s3.s3BucketPublic,
            Key: 'filenameHere.xlsx',
            ACL: 'public-read',
            Body: wbOut,
            ContentType:
              'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet',
          })
          .promise();

Answer 2

以下是对我有用的。

const Excel = require('exceljs');
const aws = require('aws-sdk');
let workbook = new Excel.Workbook();
workbook.creator = 'System';
workbook.lastModifiedBy = 'System';
workbook.created = new Date();
workbook.modified = new Date();
workbook.lastPrinted = new Date();

let worksheet = workbook.addWorksheet('SOME Data');
worksheet.columns = [{
    header: 'somekey',
    key: 'DeviceID'
}, {
    header: 'Type',
    key: 'Type'
}];

hcpData.forEach(element => {
   worksheet.addRow({
       somekey: element.DEVICEID,
       Type: element.TYPE
   });
});

worksheet.getRow(1).eachCell(cell => {
    cell.font = {
        bold: true
   };
});
//configuring the AWS environment
aws.config.update({
    accessKeyId: 'putyourkye',
    secretAccessKey: 'putyourkye',
});

const s3 = new aws.S3();
const stream = new Stream.PassThrough();

workbook.xlsx.write(stream).then(() => {
    return s3
       .upload({
        Key: Date.now() + '_XYZNAME.xlsx',
        Bucket: 'abc-reports',
        Body: stream,
        ACL: 'public-read',
    })
    .promise()
    .then(data => {
        // do some task after upload
    });
});