Supabase

// app/api/auth/callback/route.ts
import { cookies } from "next/headers";
import { NextResponse } from "next/server";
import { createClient } from "@/lib/supabase/server";
import { waitUntil } from "@vercel/functions";
import { linkkit } from "@/lib/linkkit";

export async function GET(request: Request) {
  const { searchParams, origin } = new URL(request.url);
  const code = searchParams.get("code");
  // If "next" is included in the URL, use it as the redirect path
  const next = searchParams.get("next") ?? "/";

  if (code) {
    const supabase = createClient(cookies());
    const { data, error } = await supabase.auth.exchangeCodeForSession(code);

    if (!error) {
      const { user } = data;
      const linkkit_id = cookies().get("linkkit_id")?.value;

      // Consider the user as new if the account was created within the last 10 minutes
      const isNewUser =
        new Date(user.created_at) > new Date(Date.now() - 10 * 60 * 1000);

      // If the user is new and has a linkkit_id cookie, track the lead event
      if (linkkit_id && isNewUser) {
        waitUntil(
          linkkit.track.lead({
            clickId: linkkit_id,
            eventName: "Sign Up",
            customerExternalId: user.id,
            customerName: user.user_metadata.name,
            customerEmail: user.email,
            customerAvatar: user.user_metadata.avatar_url,
          }),
        );

        // Remove the click ID cookie after tracking
        cookies().delete("linkkit_id");
      }

      return NextResponse.redirect(`${origin}${next}`);
    }
  }

  // Redirect the user to an error page if authentication fails
  return NextResponse.redirect(`${origin}/auth/auth-code-error`);
}

// pages/api/auth/callback.ts
import { NextApiRequest, NextApiResponse } from "next";
import { createClient } from "@supabase/supabase-js";
import { linkkit } from "@/lib/linkkit";

export default async function handler(
  req: NextApiRequest,
  res: NextApiResponse,
) {
  const { code, next = "/" } = req.query;
  const origin = `${req.headers["x-forwarded-proto"]}://${req.headers.host}`;

  if (typeof code === "string") {
    const supabase = createClient(
      process.env.NEXT_PUBLIC_SUPABASE_URL!,
      process.env.SUPABASE_SERVICE_ROLE_KEY!,
    );

    const { data, error } = await supabase.auth.exchangeCodeForSession(code);

    if (!error) {
      const { user } = data;
      const { linkkit_id } = req.cookies;

      // Consider the user as new if the account was created within the last 10 minutes
      const isNewUser =
        new Date(user.created_at) > new Date(Date.now() - 10 * 60 * 1000);

      // If the user is new and has a linkkit_id cookie, track the lead event
      if (linkkit_id && isNewUser) {
        linkkit.track
          .lead({
            clickId: linkkit_id,
            eventName: "Sign Up",
            customerExternalId: user.id,
            customerName: user.user_metadata.name,
            customerEmail: user.email,
            customerAvatar: user.user_metadata.avatar_url,
          })
          .catch(console.error); // Handle any tracking errors

        // Remove the click ID cookie after tracking
        res.setHeader(
          "Set-Cookie",
          `linkkit_id=; Path=/; Expires=Thu, 01 Jan 1970 00:00:00 GMT`,
        );
      }

      return res.redirect(`${origin}${next}`);
    }
  }

  // Redirect the user to an error page if authentication fails
  return res.redirect(`${origin}/auth/auth-code-error`);
}