Kotlin (Java and Kotlin)

// app/auth/[...atheron]/route.ts: every Sign in with Atheron route in one file.
// Set ATHERON_CLIENT_ID, ATHERON_CLIENT_SECRET, ATHERON_SECRET and
// ATHERON_REDIRECT_URI=https://your.app/auth/callback (the address you registered).
import { Atheron } from "@aton-network/nextjs";

const atheron = Atheron();

export const { GET, POST } = atheron.handlers;

// proxy.ts (middleware.ts before Next 16): anybody not signed in goes to Atheron first, then back.
import { Atheron } from "@aton-network/nextjs";

const atheron = Atheron({ protect: ["/account", "/settings"] });

export async function proxy(request: Request): Promise<Response | undefined> {
  return atheron.proxy(request);
}

// In a server component, read the person with: await atheron.user(await cookies())

// Check that a webhook came from Atheron before you act on it. Pass the raw body, exactly as received.
import { verifyWebhook, type WebhookEvent } from "@aton-network/sdk";

export async function handleWebhook(request: Request): Promise<Response> {
  const raw = await request.text();
  const ok = await verifyWebhook(request.headers.get("atheron-signature"), raw, process.env.ATHERON_WEBHOOK_SECRET!);
  if (!ok) return new Response("bad signature", { status: 400 });
  const event = JSON.parse(raw) as WebhookEvent;
  if (event.type === "consent.revoked") {
    // Delete the refresh token you hold for event.data.sub, and stop using what you read.
  }
  return new Response(null, { status: 204 });
}

# Follow the events stream. -N keeps curl from buffering; pass the last id you handled to resume.
curl -N https://developers.aton-network.org/api/v1/events \
  -H "Authorization: Bearer $ATHERON_API_KEY" \
  -H "Accept: text/event-stream" \
  -H "Last-Event-ID: $LAST_EVENT_ID"