Crypto-as-a-Service: Capture Client Fee

// 1. Create Trade Webhook
export ORGANIZATION_ID="<YOUR_ORGANIZATION_ID>"
export ACCESS_TOKEN="<YOUR_ACCESS_TOKEN>"
export URL="<YOUR_WEBHOOK_URL>"
export LABEL="<YOUR_WEBHOOK_NAME>"

curl -X POST \
  https://app.bitgo-test.com/api/v2/organization/$ORGANIZATION_ID/webhook \
  -H 'Content-Type: application/json' \
  -H "Authorization: Bearer $ACCESS_TOKEN" \
  -d '{
    "type": "tradeOrder",
    "url": "'"$URL"'",
    "label": "'"$LABEL"'"
  }'

// 2. Get Filled Order Details
export ACCOUNT_ID="<END_USER_GO_ACCOUNT_WALLET_ID>"
export ORDER_ID="<ORDER_ID_FROM_WEBHOOK>"
export ACCESS_TOKEN="<YOUR_ACCESS_TOKEN>"

curl -X GET \
  "https://app.bitgo-test.com/api/prime/trading/v1/accounts/$ACCOUNT_ID/orders/$ORDER_ID" \
  -H 'Content-Type: application/json' \
  -H "Authorization: Bearer $ACCESS_TOKEN"

// 3. Build Fee Transfer
export COIN="<OFC_ASSET_ID>"
export WALLET_ID="<END_USER_GO_ACCOUNT_WALLET_ID>"
export ACCESS_TOKEN="<YOUR_ACCESS_TOKEN>"
export FEE_AMOUNT="<CALCULATED_FEE_AMOUNT>"
export COLLECTION_WALLET_ID="<YOUR_COLLECTION_GO_ACCOUNT_WALLET_ID>"

curl -X POST \
  https://app.bitgo-test.com/api/v2/$COIN/wallet/$WALLET_ID/tx/build \
  -H 'Content-Type: application/json' \
  -H "Authorization: Bearer $ACCESS_TOKEN" \
  -d '{
    "recipients": [
      {
        "amount": "'"$FEE_AMOUNT"'",
        "walletId": "'"$COLLECTION_WALLET_ID"'"
      }
    ]
}'

// 4. Authenticate Fee Transfer
export BITGO_EXPRESS_HOST="<YOUR_LOCAL_HOST>"
export WALLET_PASSPHRASE="<YOUR_GO_ACCOUNT_PASSPHRASE>"

curl -X POST \
  http://$BITGO_EXPRESS_HOST/api/v2/ofc/signPayload \
  -H 'Content-Type: application/json' \
  -H "Authorization: Bearer $ACCESS_TOKEN" \
  -d '{
   "walletId": "'"$WALLET_ID"'",
   "walletPassphrase": "'"$WALLET_PASSPHRASE"'",
   "payload": "<PAYLOAD_FROM_BUILD_STEP>"
}'

// 5. Send Fee Transfer
curl -X POST \
  https://app.bitgo-test.com/api/v2/$COIN/wallet/$WALLET_ID/tx/send \
  -H 'Content-Type: application/json' \
  -H "Authorization: Bearer $ACCESS_TOKEN" \
  -d '{
    "halfSigned": {
      "payload": "<PAYLOAD>",
      "signature": "<SIGNATURE_FROM_AUTH_STEP>"
    }
  }'

// 1. Create Trade Webhook
// Use the REST API to create a trade webhook (see cURL tab)

// 2. Get Filled Order Details
// Use the REST API to get the filled order (see cURL tab)

// 3. Build Fee Transfer
const BitGoJS = require('bitgo');

const bitgo = new BitGoJS.BitGo({
  accessToken: process.env.ACCESS_TOKEN,
  env: 'test',
});

async function captureFee() {
  const coin = '<OFC_ASSET_ID>';
  const walletId = '<END_USER_GO_ACCOUNT_WALLET_ID>';
  const wallet = await bitgo.coin(coin).wallets().get({ id: walletId });

  const transaction = await wallet.prebuildTransaction({
    recipients: [
      {
        amount: '<CALCULATED_FEE_AMOUNT>',
        walletId: '<YOUR_COLLECTION_GO_ACCOUNT_WALLET_ID>',
      },
    ],
  });

  // 4. Authenticate Fee Transfer
  const tradingAccount = wallet.toTradingAccount();
  const signature = await tradingAccount.signPayload({
    payload: JSON.stringify(transaction.payload),
    walletPassphrase: process.env.WALLET_PASSPHRASE,
  });

  // 5. Send Fee Transfer
  // Use the signature from step 4 with the tx/send endpoint (see cURL tab)
  console.log('Payload:', transaction.payload);
  console.log('Signature:', signature);
}

captureFee();