如何管exceljs流以在hapijs中回覆

Question

我正在使用exceljs生成excel文件（使用它的流功能）。我不想將文件保存在服務器上，然後讀取並返回它，我想直接將exceljs流傳輸到hapijs中的響應。

function(request, reply) { 
    const options = { 
    stream: reply, // I need to somehow declare the reply stream here 
    useStyles: false, 
    useSharedStrings: true 
    }; 

    const workbook = new Excel.stream.xlsx.WorkbookWriter(options); 
    workbook.addWorksheet('Test'); 
    const worksheet = workbook.getWorksheet('Test'); 

    worksheet.columns = [{ 
    header: 'product', key: 'product' 
    }]; 

    worksheet.addRow({product: 'MyProduct'}).commit(); 
    worksheet.commit(); 
    workbook.commit(); 

這可能嗎？我無法像expressjs那樣直接將答覆傳遞給Exceljs流的選項？有什麼想法嗎？

Answer 1

var wb = new Excel.stream.xlsx.WorkbookWriter(); 
var sh = wb.addWorksheet('sheet1'); 
sh.columns = [ 
    { header: 'Name', key: 'name' }, 
    { header: 'Age', key: 'age' } 
]; 

sh.addRow(['Ben', 8]); 
sh.addRow(['Dave', 10]); 

sh.commit(); 
wb.commit() 
.then(function() { 
    var stream = wb.stream; 
    var b = stream.read(); 

    reply(b) 
    .type('application/vnd.openxmlformats-officedocument.spreadsheetml.sheet') 
    .header('Content-Disposition', 'attachment; filename=file.xlsx') 
    .header('Content-Length', stream.length); 
});