npm install braintree
pip install braintree

import braintree from 'braintree';

const gateway = new braintree.BraintreeGateway({
  environment: braintree.Environment.Sandbox,
  merchantId: process.env.BT_SANDBOX_MERCHANT_ID!,
  publicKey: process.env.BT_SANDBOX_PUBLIC_KEY!,
  privateKey: process.env.BT_SANDBOX_PRIVATE_KEY!,
});

const result = await gateway.transaction.sale({
  amount: '10.00',
  paymentMethodNonce: 'fake-valid-nonce',  // From Braintree client SDK
  options: { submitForSettlement: true },
});

expect(result.success).toBe(true);
expect(result.transaction.status).toBe('submitted_for_settlement');

await gateway.testing.settle(transactionId);
const result = await gateway.transaction.find(transactionId);
expect(result.status).toBe('settled');

const refundResult = await gateway.transaction.refund(transactionId);
expect(refundResult.transaction.type).toBe('credit');

const webhookNotification = await gateway.webhookNotification.parse(
  request.body.bt_signature,
  request.body.bt_payload,
);

expect(webhookNotification.kind).toBeDefined();
// e.g., 'transaction_settled', 'transaction_settlement_declined'

braintree.dropin.create({
  authorization: clientToken,
  selector: '#dropin-container',
}, (err, instance) => {
  // ...
  instance.requestPaymentMethod((err, payload) => {
    // payload.nonce — send to server
    fetch('/api/checkout', { method: 'POST', body: JSON.stringify({ nonce: payload.nonce }) });
  });
});

npm test

jobs:
  braintree-tests:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v5
      - uses: actions/setup-node@v4
      - run: npm ci && npm test
        env:
          BT_SANDBOX_MERCHANT_ID: ${{ secrets.BT_SANDBOX_MERCHANT_ID }}
          BT_SANDBOX_PUBLIC_KEY: ${{ secrets.BT_SANDBOX_PUBLIC_KEY }}
          BT_SANDBOX_PRIVATE_KEY: ${{ secrets.BT_SANDBOX_PRIVATE_KEY }}