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carbon/handlers/image.js

35 lines
884 B
JavaScript

module.exports = browser => async (req, res) => {
let page = await browser.newPage()
let url = req.body.url
if (!url) res.status(400).send()
try {
await page.goto(url)
await page.addScriptTag({ path: `./lib/customDomToImage.js` })
const targetElement = await page.$('#export-container')
let dataUrl = await page.evaluate(target => {
const config = {
style: {
transform: 'scale(2)',
'transform-origin': 'center'
},
filter: n => (n.className ? String(n.className).indexOf('eliminateOnRender') < 0 : true),
width: target.offsetWidth * 2,
height: target.offsetHeight * 2
}
return domtoimage.toPng(target, config)
}, targetElement)
res.status(200).json({ dataUrl })
} catch (e) {
console.error(e)
res.status(500).send()
} finally {
await page.close()
}
}