import type { VercelRequest, VercelResponse } from "@vercel/node";
import { generateQrCode } from "../src/mcp/qr-generator.js";
export default async function handler(req: VercelRequest, res: VercelResponse) {
// Only allow GET requests
if (req.method !== "GET") {
return res.status(405).json({
error: "Method not allowed",
message: "Only GET requests are supported",
});
}
try {
const { data, style } = req.query;
// Validate required parameters
if (!data || typeof data !== "string") {
return res.status(400).json({
error: "Missing required parameter",
message: "Query parameter 'data' is required",
});
}
// Generate QR code with default settings for download
const styleId = typeof style === "string" ? style : "slate-ember";
const size = 768;
const base64Data = await generateQrCode({
data,
styleId,
size,
format: "svg",
});
// Decode base64 to get the SVG content
const svgContent = Buffer.from(base64Data, "base64").toString("utf-8");
// Generate filename from data URL (safely)
const filename = `qr-code-${Date.now()}.svg`;
// Set headers for file download
res.setHeader("Content-Type", "image/svg+xml");
res.setHeader("Content-Disposition", `attachment; filename="${filename}"`);
res.setHeader("Cache-Control", "public, max-age=3600"); // Cache for 1 hour
return res.status(200).send(svgContent);
} catch (error) {
// biome-ignore lint/suspicious/noConsole: Needed for serverless logging
console.error("Download QR error:", error);
return res.status(500).json({
error: "Internal server error",
message: error instanceof Error ? error.message : "Unknown error",
});
}
}
