draw image with node-canvas

gistfile1.txt

const {
  createCanvas,
  registerFont,
  loadImage
} = require('canvas')

// подгружаем шрифт

registerFont('./static/fonts/d-m.woff', { family: 'D-M' })

// рисуем картинку

const drawResultImage = async (prediction, lng, emoji) => {
  const canvas = createCanvas(1200, 630)
  const ctx = canvas.getContext('2d')
  const image = prediction <= 0
    ? lng === 'ru' ? resultTemplateFail : resultTemplateFailEn
    : lng === 'ru' ? resultTemplate : resultTemplateEn
  ctx.drawImage(image, 0, 0)
  ctx.font = '100px D-M'
  const { width: textWidth } = ctx.measureText(`$${prediction}`)
  const textX = 600 - (textWidth + 120 + 20) / 2
  ctx.fillText(`$${prediction}`, textX, 450)
  if (emojis[emoji]) {
    ctx.drawImage(emojis[emoji], textX + textWidth + 20, 350, 120, 120)
  }
  return canvas
}

// ручка для получения картинки

  server.get('/result-image/:data', async (req, res) => {
    try {
      const jsonString = cryptr.decrypt(req.params.data)
      const result = JSON.parse(jsonString)
      const status = getStatus(result.prediction)
      res.setHeader('Content-Type', 'image/png')
      const image = await drawResultImage(result.prediction, result.lng, status.emoji)
      image.pngStream().pipe(res)
    } catch (e) {
      console.log(e)
      res.end('smth went wrong', e)
    }
  })