Node SDK Quick Start

Time: ~5 minutes | Difficulty: Beginner

When to use this SDK:

Server automation: AI agents, CI/CD pipelines, batch jobs
Programmatically managing stores, products, payments, customers, subscriptions
Verifying webhook signatures
Provisioning sub-merchants and minting per-merchant API keys (tagada.partners.* — see the Partners section)

When NOT to use this SDK:

Anything that runs in a browser — tokenization, 3DS challenges, wallet sheets → use @tagadapay/core-js or the Headless SDK
Custom checkout UI on your own domain → pair this SDK with the Headless SDK on the browser side

Want TagadaPay to process your cards? (direct merchant, not a partner platform) See Apply for TagadaPay Processing — processing.applications.create() with your CRM key.

Building a payment platform that charges for MANY merchants? Jump straight to the Partners tab — it walks through the full multi-tenant flow with sub-keys, auto-provisioned stores, and APMs.

What Is the Node SDK?

The Node SDK lets you control TagadaPay from your server. Think of it as the backend counterpart to the Plugin SDK — while the Plugin SDK builds the checkout UI, the Node SDK manages everything behind it.

┌──────────────────────────────────────────────┐
│  Your server / script / CI pipeline          │
│                    ↓                         │
│  @tagadapay/node-sdk                         │
│                    ↓                         │
│  TagadaPay REST API                          │
│    • Create stores & products                │
│    • Deploy checkout pages                   │
│    • Set up multi-step funnels               │
│    • Process & route payments across PSPs    │
│    • Manage subscriptions & customers        │
└──────────────────────────────────────────────┘

Why use the Node SDK? If you’re an AI agent, a CI/CD pipeline, a custom backend, or just prefer code over dashboards — this is how you talk to TagadaPay programmatically.

Prerequisites

Node.js 18+ (nodejs.org — run node --version to check)
A TagadaPay API key — get one in 30 seconds (next section)

Get an API key in 30 seconds

You have three options. The first one is what AI coding tools / installers should use; the last one is what you’d do if you already have an account.

CLI (interactive)
SDK (programmatic)
Dashboard (existing account)

Run this in the directory where you want your .env:

npx -p @tagadapay/node-sdk@latest tagada-init you@example.com

Paste the 6-digit code from your inbox when prompted. Done — TAGADA_API_KEY, TAGADA_STORE_ID, and TAGADA_ACCOUNT_ID are now in .env.

For scripts, AI agents, or framework installers:

import Tagada from '@tagadapay/node-sdk';

const onboarding = Tagada.public();

await onboarding.start({ email: 'you@example.com' });

// ...prompt the user / read from a query string...
const { apiKey, storeId } = await onboarding.verify({
  email: 'you@example.com',
  code: '123456',
});

const tagada = new Tagada(apiKey); // ready to call any resource

Full guide with error-handling, security notes, and the framework-specific env-var mirrors tagada-init writes (Vite / Next / Astro): Get an API key from code.

Install

npm install @tagadapay/node-sdk

Initialize

import Tagada from '@tagadapay/node-sdk';

const tagada = new Tagada('your-api-key');

That’s it. Every resource is now available via tagada.<resource>.

Example: Full Checkout Setup in 7 Steps

This script creates a processor, payment flow, store, product, and funnel — activates the checkout — then generates a checkout session link. No plugin deployment needed; TagadaPay’s native checkout is auto-injected.

import Tagada from '@tagadapay/node-sdk';
const tagada = new Tagada('your-api-key');

// 1. Create a sandbox processor (or use 'stripe', 'nmi', etc.)
const { processor } = await tagada.processors.create({
  processor: {
    name: 'Sandbox', type: 'sandbox', enabled: true,
    supportedCurrencies: ['USD'], baseCurrency: 'USD',
    options: { testMode: true },
  },
});

// 2. Create a payment flow
const flow = await tagada.paymentFlows.create({
  data: {
    name: 'Default', strategy: 'simple',
    fallbackMode: false, maxFallbackRetries: 0,
    threeDsEnabled: false, stickyProcessorEnabled: false,
    pickProcessorStrategy: 'weighted',
    processorConfigs: [{ processorId: processor.id, weight: 100, disabled: false, nonStickable: false }],
    fallbackProcessorConfigs: [], abuseDetectionConfig: null,
  },
});

// 3. Create a store with the payment flow
const store = await tagada.stores.create({
  name: 'My Store', baseCurrency: 'USD',
  presentmentCurrencies: ['USD', 'EUR'], chargeCurrencies: ['USD'],
  selectedPaymentFlowId: flow.id,
});

// 4. Create a product
const product = await tagada.products.create({
  storeId: store.id, name: 'Premium Plan', active: true,
  variants: [{
    name: 'Monthly', sku: 'premium-monthly', grams: 0,
    price: 2999, compareAtPrice: 0, active: true, default: true,
    prices: [{ currencyOptions: { USD: { amount: 2999 } }, recurring: false, billingTiming: 'in_advance', default: true }],
  }],
});
const variantId = product.variants[0].id;

// 5. Create a funnel (native checkout auto-injected)
const funnel = await tagada.funnels.create({
  storeId: store.id,
  config: {
    id: 'my-checkout', name: 'My Checkout', version: '1.0.0',
    nodes: [
      { id: 'step_checkout', name: 'Checkout', type: 'checkout', kind: 'step', isEntry: true, position: { x: 0, y: 0 }, config: { path: '/checkout' } },
      { id: 'step_thankyou', name: 'Thank You', type: 'thankyou', kind: 'step', position: { x: 300, y: 0 }, config: { path: '/thankyou' } },
    ],
    edges: [{ id: 'e1', source: 'step_checkout', target: 'step_thankyou' }],
  },
  isDefault: true,
});

// 6. Activate (mounts routes, checkout goes live)
const result = await tagada.funnels.update(funnel.id, {
  storeId: store.id, config: funnel.config,
});

const funnelCheckoutUrl = result.funnel.config.nodes
  .find(n => n.id === 'step_checkout').config.url;
console.log('Funnel live at:', funnelCheckoutUrl);

// 7. Create a checkout session — shareable link with pre-loaded cart
const session = await tagada.checkout.createSession({
  storeId: store.id,
  items: [{ variantId, quantity: 1 }],
  currency: 'USD',
  checkoutUrl: funnelCheckoutUrl,
});
console.log('Checkout link:', session.redirectUrl);

For a detailed walkthrough of each step, see the Merchant Quick Start. For deploying your own pages (checkout, landing, offers) instead of the native checkout, see Funnel Pages.

Available Resources

Every resource follows the same patterns: list, retrieve, create, update, del.

Resource	Examples
`tagada.stores`	`.list()`, `.create(...)`, `.retrieve(id)`
`tagada.products`	`.list(...)`, `.create(...)`, `.update(...)`
`tagada.payments`	`.list(...)`, `.process(...)`, `.refund(...)`, `.void(...)`
`tagada.paymentFlows`	`.create(...)`, `.listWithProcessors()` — define how payments cascade across PSPs
`tagada.funnels`	`.create(...)`, `.update(id, ...)`, `.promote(id, ...)` — multi-step flows with auto-routing
`tagada.shopify`	`.checkScript(storeId)`, `.updateScript(storeId, ...)`, `.removeScript(storeId)`, `.audit(storeId)` — Shopify checkout script
`tagada.plugins`	`.deployDirectory(...)` (recommended), `.deploy(...)`, `.instantiate(...)`, `.mount(...)`, `.configureSplit(...)` — host pages on TagadaPay’s CDN with A/B testing
`tagada.subscriptions`	`.create(...)`, `.cancel(...)`, `.rebill(id)`, `.changeProcessor(...)`
`tagada.customers`	`.list(...)`, `.retrieve(id)`
`tagada.orders`	`.list(...)`, `.retrieve(id)`
`tagada.webhooks`	`.create(...)`, `.list(...)`, `.del(id)`
`tagada.events`	`.recent(...)`, `.list(...)`, `.statistics(...)` — event log and audit trail
`tagada.emailTemplates`	`.create(...)`, `.list(...)`, `.update(...)`, `.test(...)`, `.del(...)` — Emails guide
`tagada.promotions`	`.create(...)`, `.list(...)`, `.update(...)` — discounts
`tagada.promotionCodes`	`.create(...)`, `.list(...)` — discount codes
`tagada.offers`	`.list(...)`, `.create(...)` — upsells, downsells, order bumps
`tagada.blockRules`	`.create(...)`, `.list(...)`, `.del(...)` — fraud prevention
`tagada.paymentInstruments`	`.createFromToken(...)`, `.list(...)`, `.retrieve(id)`, `.del(id)` — stored payment methods
`tagada.checkoutOffers`	`.list(...)`, `.create(...)`, `.update(...)`, `.del(...)` — checkout-scoped offers
`tagada.checkout`	`.createSession(...)`, `.pay(...)` — create checkout links and process payments server-side
`tagada.processors`	`.list()`, `.create(...)`, `.retrieve(id)`, `.update(...)`, `.del([ids])` — manage PSP connections
`tagada.domains`	`.add(...)`, `.list(...)`, `.verify(...)`, `.remove(...)`, `.getConfig(...)`, `.getDnsLookup(...)` — Custom Domains guide

Payment Flows: The Core of TagadaPay

TagadaPay is PSP-agnostic. You connect multiple processors (Stripe, Adyen, NMI, etc.) and define payment flows that route transactions intelligently.

const flow = await tagada.paymentFlows.create({
  data: {
    name: 'US Primary',
    strategy: 'cascade',           // 'simple' = single processor, 'cascade' = fallback chain
    fallbackMode: true,
    maxFallbackRetries: 3,
    threeDsEnabled: false,
    stickyProcessorEnabled: true,
    pickProcessorStrategy: 'weighted',  // 'weighted' | 'lowestCapacity' | 'automatic'
    processorConfigs: [
      { processorId: 'proc_stripe', weight: 60, disabled: false, nonStickable: false },
      { processorId: 'proc_adyen', weight: 40, disabled: false, nonStickable: false },
    ],
    fallbackProcessorConfigs: [
      { processorId: 'proc_nmi', orderIndex: 0 },
    ],
  },
});

60% of traffic goes to Stripe, 40% to Adyen. If both fail, NMI picks up the payment. All automatic.

Error Handling

The SDK throws typed errors you can catch individually:

import Tagada, {
  TagadaNotFoundError,
  TagadaValidationError,
  TagadaAuthenticationError,
  TagadaRateLimitError,
} from '@tagadapay/node-sdk';

try {
  await tagada.payments.retrieve('pay_nonexistent');
} catch (err) {
  if (err instanceof TagadaNotFoundError) {
    // 404 — resource doesn't exist
  } else if (err instanceof TagadaValidationError) {
    console.log(err.errors); // [{ field: 'amount', message: 'Required' }]
  } else if (err instanceof TagadaRateLimitError) {
    console.log(`Retry after ${err.retryAfter}s`);
  }
}

Retries on 429, 5xx, and network errors are automatic (configurable via maxRetries).

Configuration

const tagada = new Tagada({
  apiKey: 'your-api-key',
  baseUrl: 'https://app.tagadapay.com/api/public/v1', // default
  timeout: 30_000,   // request timeout
  maxRetries: 2,     // auto-retry on failure
  apiVersion: '2025-01-01',
});

Pass an idempotencyKey to safely retry mutations:

await tagada.payments.process(params, { idempotencyKey: 'unique-key-123' });

TypeScript

Fully typed. Import any type you need:

import type { Payment, Customer, Subscription, TagadaList } from '@tagadapay/node-sdk';

Next Steps

Email Templates

Create and customize transactional emails — order confirmations, subscription receipts, cart recovery

Webhooks & Events

Real-time notifications and event log for payments, subscriptions, and more

Subscriptions

Recurring billing, trials, retries, processor migration

Multi-Stripe Routing & Vault

Connect multiple Stripe accounts, vault cards, and cascade transactions

Funnel Orchestrator

Deep dive into multi-step funnels with routing, A/B testing, and analytics

API Reference

Full REST API documentation

Overview

Web Integration

Tracking & Attribution

Node SDK

Funnels

Shopify

SaaS Billing

Headless SDK

Plugin SDK

Plugin CLI

Studio MCP (AI Agents)

CRM MCP (AI Agents)

Hosting & A/B Testing

Internal

Node SDK Quick Start

Node SDK Quick Start

What Is the Node SDK?

Prerequisites

Get an API key in 30 seconds

Install

Initialize

Example: Full Checkout Setup in 7 Steps

Available Resources

Payment Flows: The Core of TagadaPay

Error Handling

Configuration

TypeScript

Next Steps

Email Templates

Webhooks & Events

Subscriptions

Multi-Stripe Routing & Vault

Funnel Orchestrator

API Reference

​Node SDK Quick Start

​What Is the Node SDK?

​Prerequisites

​Get an API key in 30 seconds

​Install

​Initialize

​Example: Full Checkout Setup in 7 Steps

​Available Resources

​Payment Flows: The Core of TagadaPay

​Error Handling

​Configuration

​TypeScript

​Next Steps

Email Templates

Webhooks & Events

Subscriptions

Multi-Stripe Routing & Vault

Funnel Orchestrator

API Reference

Node SDK Quick Start

What Is the Node SDK?

Prerequisites

Get an API key in 30 seconds

Install

Initialize

Example: Full Checkout Setup in 7 Steps

Available Resources

Payment Flows: The Core of TagadaPay

Error Handling

Configuration

TypeScript

Next Steps