Payment Plugin Studio

import { definePlugin } from '@zirzir/plugin-sdk';

export default definePlugin({
  async charge({ config, reference, amount, currency, phone }) {
    console.log(`⚡ Initiating ${currency} ${amount} charge on MTN MoMo for ${phone}`);
    
    // 1. Call MTN MoMo API
    const response = await fetch('https://api.mtn_momo.com/v1/charge', {
      method: 'POST',
      headers: {
        'Authorization': `Bearer ${config.api_key}`,
        'Content-Type': 'application/json',
      },
      body: JSON.stringify({
        ref: reference,
        amount,
        currency,
        phone,
      }),
    });

    const data = await response.json();
    return {
      status: 'pending',
      provider_txn_id: data.id || `TXN_${Date.now()}`,
      payment_url: data.checkout_url || null,
    };
  },

  async verifyWebhook({ config, payload, signature }) {
    // 2. Validate cryptographic signature
    const isValid = payload && signature;
    return {
      reference: payload.reference,
      status: payload.status === 'SUCCESS' ? 'completed' : 'failed',
      provider_txn_id: payload.txn_id,
      amount: payload.amount,
      currency: payload.currency,
    };
  },
});