@pure-tools/monetka

Pluggable payment provider abstraction for Angular apps. One service, swap providers via config.

Supported providers: Stripe · Lemon Squeezy · Paddle

Install

npm install @pure-tools/monetka

Setup

// app.config.ts
import { providePayments } from '@pure-tools/monetka';

providePayments({
  provider: 'stripe', // 'stripe' | 'lemon-squeezy' | 'paddle'
  publicKey: environment.stripePublicKey,
})

Usage

payments = inject(PaymentService);

payments.openCheckout({ email, successUrl })
payments.validateLicense('KEY')
payments.getSubscriptionStatus(customerId)

In-app purchases (iOS / Android)

Apple and Google require their own billing for digital unlocks inside native apps, so Stripe/Paddle/Lemon Squeezy checkout can't be used there. Use the in-app provider on native platforms, backed by a store bridge. monetka does not import any store SDK; you pass one in.

npm i @revenuecat/purchases-capacitor   # in the web app AND the Capacitor project

import { Capacitor } from '@capacitor/core';
import { Purchases } from '@revenuecat/purchases-capacitor';
import { providePayments, revenueCatBridge } from '@pure-tools/monetka';

const native = Capacitor.isNativePlatform();

providePayments(native
  ? {
      provider: 'in-app',
      publicKey: '',
      productId: 'pro_lifetime',            // App Store Connect / Play Console product id
      bridge: revenueCatBridge(Purchases, {
        apiKey: Capacitor.getPlatform() === 'ios' ? 'appl_...' : 'goog_...',
      }),
    }
  : { provider: 'stripe', publicKey: 'pk_...', productId: 'price_...' });

await payment.openCheckout({ userId: user.id });   // native purchase sheet
if (payment.canRestorePurchases) {                   // App Store review requires a Restore button
  await payment.restorePurchases(user.id);
}

Always pass your auth userId: RevenueCat uses it as the app user id, so its webhook can grant access in your database. Treat CheckoutResult.entitlements as a UI hint only; the server webhook is the source of truth.

Custom store SDK: implement InAppPurchaseBridge (purchase, restore, getEntitlements).

Notes

• Stripe and Paddle require serverless API routes (/api/create-checkout-session, /api/subscription-status)
• Lemon Squeezy validates licenses directly against their public API