Function POST

apps/web/src/app/api/auth/magic-link/route.ts:40–137

(request: NextRequest)

  const eligibility = await checkEmailSignInEligibility(email, request);
  if (!eligibility.ok) {
    return NextResponse.json(eligibility.body, { status: eligibility.status });
  }

  const magicLink = await createMagicLinkToken(email);
  const result = await sendMagicLinkEmail(magicLink, callbackUrl);

  if (!result.sent) {
    if (result.reason === 'neverbounce_rejected') {
      return NextResponse.json(
        {
          success: false,
          error: 'Unable to deliver email to this address. Please use a different email.',
        },
        { status: 400 }
      );
    }
    // provider_not_configured — internal issue, don't blame the user's email
    return NextResponse.json(
      { success: false, error: 'An internal error occurred. Please try again later.' },
      { status: 500 }
    );
  }

  return NextResponse.json({
    success: true,
    message: 'Magic link sent to your email',
  });
}