Mapping a Custom Domain to Google Cloud Run with Porkbun

# Check apex A records
dig +short yourdomain.com A

# Check www CNAME
dig +short www.yourdomain.com CNAME

# Test HTTPS
curl -Iv https://www.yourdomain.com
curl -Iv https://yourdomain.com

app.use((req, res, next) => {
  if (req.headers['x-forwarded-proto'] !== 'https') {
    return res.redirect(301, `https://${req.headers.host}${req.url}`);
  }
  next();
});

@app.middleware("http")
async def https_redirect(request: Request, call_next):
    if request.headers.get("x-forwarded-proto") != "https":
        url = request.url.replace(scheme="https")
        return RedirectResponse(str(url), status_code=301)
    return await call_next(request)