Supabase

// supabase/functions/check-email/index.ts
import { serve } from "https://deno.land/std@0.168.0/http/server.ts";

serve(async (req) => {
  const { email } = await req.json();

  try {
    const r = await fetch(
      `https://api.disposableguard.com/v1/check?email=${encodeURIComponent(email)}`,
      {
        headers: {
          Authorization: `Bearer ${Deno.env.get("DG_KEY")}`,
        },
      }
    );
    if (r.ok) {
      const data = await r.json();
      if (data.is_disposable) {
        return new Response(
          JSON.stringify({ error: "Please use a real email address." }),
          { status: 400, headers: { "Content-Type": "application/json" } }
        );
      }
    }
  } catch {
    // fail-open
  }

  return new Response(JSON.stringify({ ok: true }), {
    headers: { "Content-Type": "application/json" },
  });
});