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Next.js / React

This recipe integrates Neuroon in a Next.js 14+ app (App Router). The pattern is the same for any server-rendered React framework.

Final structure​

app/
├── api/
│   └── neuroon-token/
│       └── route.ts        # Mints the Widget Token
├── layout.tsx              # Embeds the widget
└── page.tsx
.env.local                  # NEUROON_API_KEY, NEUROON_SHOP_ID

1. Environment variables​

.env.local:

NEUROON_API_KEY=sk_xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
NEUROON_SHOP_ID=shop_xxxxxxxxxxxxxxxxxxxxxxxxxxxx
NEUROON_API_URL=https://api.neuroon.ai

Server-only (no NEXT_PUBLIC_ prefix). If you don't have an API Key yet, get it here.

2. Route Handler that signs the Widget Token​

Your server signs the token locally with the API Key as HMAC secret. You do not call Neuroon to issue it.

app/api/neuroon-token/route.ts:

import { NextResponse } from 'next/server';
import { createHmac } from 'node:crypto';

export const runtime = 'nodejs';
export const dynamic = 'force-dynamic';

let cached: { token: string; expiresAt: number } | null = null;

function signToken(): { token: string; expiresAt: number } {
  const ts = Math.floor(Date.now() / 1000);
  const payload = `${process.env.NEUROON_SHOP_ID}:${ts}`;
  const sig = createHmac('sha256', process.env.NEUROON_API_KEY!).update(payload).digest('hex');
  const token = Buffer.from(`${payload}:${sig}`, 'utf8').toString('base64url');
  return { token, expiresAt: (ts + 24 * 3600) * 1000 };
}

export async function GET() {
  const now = Date.now();
  if (!cached || now >= cached.expiresAt - 5 * 60_000) {
    cached = signToken();
  }
  return NextResponse.json({ token: cached.token });
}

Full pattern (Node, .NET, Python, PHP) with distributed Redis cache in Recipe · Server-to-server token.

3. Embed the widget in the root layout​

app/layout.tsx:

import Script from 'next/script';
import { createHmac } from 'node:crypto';

let tokenCache: { token: string; expiresAt: number } | null = null;

function getWidgetToken(): string {
  const now = Date.now();
  if (tokenCache && now < tokenCache.expiresAt - 5 * 60_000) return tokenCache.token;
  const ts = Math.floor(now / 1000);
  const payload = `${process.env.NEUROON_SHOP_ID}:${ts}`;
  const sig = createHmac('sha256', process.env.NEUROON_API_KEY!).update(payload).digest('hex');
  const token = Buffer.from(`${payload}:${sig}`, 'utf8').toString('base64url');
  tokenCache = { token, expiresAt: (ts + 24 * 3600) * 1000 };
  return token;
}

export default function RootLayout({ children }: { children: React.ReactNode }) {
  const token = getWidgetToken();

  return (
    <html lang="en">
      <body>
        {children}
        <div id="neuroon-search" />
        <Script
          src="https://cdn.neuroon.ai/widget@0.9.27/widget.js"
          data-token={token}
          data-container="#neuroon-search"
          data-theme="auto"
          data-locale="en"
          strategy="afterInteractive"
        />
      </body>
    </html>
  );
}

The Script with strategy="afterInteractive" is injected after Next's initial hydration; it doesn't block First Paint. The per-instance tokenCache ensures signing runs at most once every ~24 h. In multi-pod (Vercel) use Redis/KV.

4. Sync products from a Server Action or cron​

app/actions/sync-products.ts:

'use server';

export async function syncProducts(products: Array<{
  externalId: string;
  name: string;
  price: number;
  currency: string;
  url: string;
}>) {
  const res = await fetch(
    `${process.env.NEUROON_API_URL}/api/integrations/v1/products/sync`,
    {
      method: 'POST',
      headers: {
        'Authorization': process.env.NEUROON_API_KEY!,
        'Content-Type': 'application/json',
      },
      body: JSON.stringify({ syncType: 'INCREMENTAL', products }),
    },
  );

  if (!res.ok) {
    throw new Error(`Sync failed: ${res.status}`);
  }

  return (await res.json()) as {
    totalReceived: number;
    newProducts: number;
    updatedProducts: number;
    failed: number;
  };
}

Call it from wherever you have your catalog (a cron job with inngest/vercel-cron, a CMS webhook, a manual Server Action). The backend accepts up to 500 products per batch.

5. Server-side conversion tracking​

Inside the Server Action that confirms the order:

'use server';

export async function confirmOrder(order: {
  id: string;
  total: number;
  currency: string;
  items: Array<{ sku: string; quantity: number; lineTotal: number }>;
}) {
  await fetch(
    `${process.env.NEUROON_API_URL}/api/integrations/v1/conversions`,
    {
      method: 'POST',
      headers: {
        'Authorization': process.env.NEUROON_API_KEY!,
        'Content-Type': 'application/json',
      },
      body: JSON.stringify({
        orderId: order.id,
        orderValue: order.total,
        currency: order.currency,
        conversions: order.items.map((i) => ({
          productId: i.sku,
          quantity: i.quantity,
          lineTotal: i.lineTotal,
        })),
      }),
    },
  );
}

Server-side conversions are resilient to adblockers (unlike browser tracking).

Quick check​

# 1. Token endpoint works
curl http://localhost:3000/api/neuroon-token

# 2. Load home and click the widget
open http://localhost:3000

If the widget doesn't appear, see Troubleshooting.

Production​

You only change two variables when going to production:

- NEUROON_API_URL=https://dev.neuroon.ai
+ NEUROON_API_URL=https://api.neuroon.ai

- NEUROON_API_KEY=sk_dev_xxxxxxxxxxxxxxxxxxxxxxxx
+ NEUROON_API_KEY=sk_xxxxxxxxxxxxxxxxxxxxxxxxxxxx

The widget CDN (cdn.neuroon.ai/widget@<version>/widget.js) is the same in both environments.

Next steps​

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