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Docs | Val Town

QR Code

Generate a QR code for any link, instantly!

Visit https://neverstew-generateQR.web.val.run?url=https://neverstew.com and replace the url query parameter with your link.

View and run this example on Val Town

import { qrcode } from "https://deno.land/x/qrcode/mod.ts";


export async function generateQR(req: Request) {
  let url: URL;
  try {
    url = new URL(new URL(req.url).searchParams.get("url"));
  }
  catch {
    return new Response("Not a valid URL", { status: 400 });
  }
  const base64Image = await qrcode(url.toString(), { type: "text/html" });
  return new Response(
    `<html>
       <head>
         <meta name="viewport" content="width=device-width, initial-scale=1.0">
       </head>
       <body>
         <img src=${base64Image} style="margin: 0 auto; max-width: 600px" width="100%" />
         <p style="font-size: 0.85rem">QR Code generated using <a href="https://val.town">val.town</a></p>
         <p style="font-size: 0.85rem">Built with &#128151; by <a href="https://twitter.com/neverstew">Neverstew</a></p>
      </body>
    </html>`,
    { headers: { "Content-Type": "text/html" } },
  );
}
// Forked from @ramkarthik.GenerateQR
// Forked from @galligan.generateQR


export default generateQR;