const getImage = (url, book, sheet, sizeOf, row, column) => new Promise((resolve, reject) => {

    const request = https.get(url, response => {
        if(response.statusCode === 200){

            let chunks = [];

            const imageColumn = sheet.getColumn('image')
            const imageRow = sheet.getRow(row + 1)

            response.on('data', chunk => {
                chunks.push(chunk)
            }).on('end', () => {
                const buffer = Buffer.concat(chunks)
                const dimension = sizeOf(buffer)

                imageColumn.width = dimension.width
                imageRow.height = dimension.height

                const imageId = book.addImage({
                    buffer: buffer,
                    extension: 'png',
                });

                sheet.addImage(imageId, {
                    tl: { col: column, row: row },
                    br: { col: column + 1, row: row + 1 },
                    editAs: "oneCell"
                });

                resolve(book)
            })
        }

    })

    request.on('error', (err) => reject(err))
})

sheet.columns = Object.keys(header).map((index) => ({Header: header[index], key: index}))
let promises = []

req.body.forEach((row, index) => {
    sheet.addRow(row)
    row.image && /\.(jpg|png|gif)/.test(row.image) && promises.push(getImage(url.parse(row.image), workbook, sheet, sizeOf, index, imageColumn))
})

promises.length
    && Promise.all(promises).then(book => book.pop().xlsx.write(res).then(() => res.end()), err => console.log(err))
    || writer.write(res).then(() => res.end())`