Enable Bulk ERC20 Withdrawals

// 1. (Optional) Check Token Allowance
export COIN="<ASSET_ID_OF_NATIVE_COIN>"
export WALLET_ID="<YOUR_WALLET_ID>"
export ACCESS_TOKEN="<YOUR_ACCESS_TOKEN>"

curl -X GET \
  https://app.bitgo-test.com/api/v2/$COIN/wallet/$WALLET_ID/allowance \
  -H 'Content-Type: application/json' \
  -H "Authorization: Bearer $ACCESS_TOKEN"

// 2. Custody MPC: Approve Batcher Smart Contract
export COIN="<ASSET_ID_OF_NATIVE_COIN>"
export WALLET_ID="<YOUR_WALLET_ID>"
export ACCESS_TOKEN="<YOUR_ACCESS_TOKEN>"
export TOKEN_NAME="<ASSET_ID_OF_TOKEN>"

curl -X POST \
  https://app.bitgo-test.com/api/v2/$COIN/wallet/$WALLET_ID/token/approval/build \
  -H 'Content-Type: application/json' \
  -H "Authorization: Bearer $ACCESS_TOKEN" \
  -d '{
    "intent": {
      "intentType": "tokenApproval",
      "tokenName": "'"$TOKEN_NAME"'"
    }
  }'

// 3. Custody Multisig: Approve Batcher Smart Contract
curl -X POST \
  https://app.bitgo-test.com/api/v2/$COIN/wallet/$WALLET_ID/token/approval/build \
  -H 'Content-Type: application/json' \
  -H "Authorization: Bearer $ACCESS_TOKEN" \
  -d '{
    "type": "tokenApproval"
    "tokenName": "'"$TOKEN_NAME"'"
  }'

// 4. Self-Custody MPC: Approve Batcher Smart Contract
curl -X POST \
  https://app.bitgo-test.com/api/v2/$COIN/wallet/$WALLET_ID/token/approval/build \
  -H 'Content-Type: application/json' \
  -H "Authorization: Bearer $ACCESS_TOKEN" \
  -d '{
    "intent": {
      "intentType": "tokenApproval",
      "tokenName": "'"$TOKEN_NAME"'",
      "feeOptions": {
        "maxFeePerGas": "30000000001",
        "maxPriorityFeePerGas": "30000000000"
      },
      "type": "tokenApproval"
    }
  }'

// 5. BitGo Offline Vault MPC: Approve Batcher Smart Contract
curl -X POST \
  https://app.bitgo-test.com/api/v2/$COIN/wallet/$WALLET_ID/token/approval/build \
  -H 'Content-Type: application/json' \
  -H "Authorization: Bearer $ACCESS_TOKEN" \
  -d '{
    "intent": {
      "intentType": "tokenApproval",
      "tokenName": "'"$TOKEN_NAME"'",
      "feeOptions": {
        "maxFeePerGas": "30000000001",
        "maxPriorityFeePerGas": "30000000000"
      }
    }
  }'

// 6. Self-Custody Multisig: Approve Batcher Smart Contract
curl -X POST \
  https://app.bitgo-test.com/api/v2/$COIN/wallet/$WALLET_ID/token/approval/build \
  -H 'Content-Type: application/json' \
  -H "Authorization: Bearer $ACCESS_TOKEN" \
  -d '{
    "tokenName": "'"$TOKEN_NAME"'"
  }'

// 7. BitGo Offline Vault Multisig: Approve Batcher Smart Contract
curl -X POST \
  https://app.bitgo-test.com/api/v2/$COIN/wallet/$WALLET_ID/token/approval/build \
  -H 'Content-Type: application/json' \
  -H "Authorization: Bearer $ACCESS_TOKEN" \
  -d '{
    "tokenName": "'"$TOKEN_NAME"'"
  }'

// 1. (Optional) Check Token Allowance
// Use the REST API for this step (see cURL tab)

// 2. Custody MPC: Approve Batcher Smart Contract
async function approveTokenCustodyMpc() {
  const walletInstance = await bitgo
    .coin('opeth')
    .wallets()
    .get({ id: '<YOUR_WALLET_ID>' });

  // For custodial MPC wallets, use sendMany with type: 'tokenApproval'
  const result = await walletInstance.sendMany({
    isTss: true,
    type: 'tokenApproval',
    tokenName: 'opeth:usdc'
  });

  return result;
}

// 3. Custody Multisig: Approve Batcher Smart Contract
async function approveTokenCustodyMultisig() {
  const walletInstance = await bitgo
    .coin('opeth')
    .wallets()
    .get({ id: '<YOUR_WALLET_ID>' });

  // For custodial multisig wallets, use sendMany with type: 'tokenApproval'
  const result = await walletInstance.sendMany({
    type: 'tokenApproval',
    tokenName: 'opeth:usdc'
  });

  return result;
}

// 4. Self-Custody MPC: Approve Batcher Smart Contract
async function approveTokenSelfCustodyMpcHot() {
  const walletInstance = await bitgo
    .coin('opeth')
    .wallets()
    .get({ id: '<YOUR_WALLET_ID>' });

  // For self-custody MPC wallets, use sendMany with isTss flag
  const result = await walletInstance.sendMany({
    isTss: true,
    type: 'tokenApproval',
    tokenName: 'opeth:usdc',
    walletPassphrase: 'VerySecurePassword1234',
    feeOptions: {
      maxFeePerGas: '30000000001',
      maxPriorityFeePerGas: '30000000000'
    }
  });

  return result;
}

// 5. BitGo Offline Vault MPC: Approve Batcher Smart Contract
async function approveTokenSelfCustodyMpcCold() {
  const walletInstance = await bitgo
    .coin('opeth')
    .wallets()
    .get({ id: '<YOUR_WALLET_ID>' });

  // For BitGo Offline Vault MPC wallets, similar to Self-Custody MPC but without passphrase
  // User will need to sign the transaction offline
  const result = await walletInstance.sendMany({
    isTss: true,
    type: 'tokenApproval',
    tokenName: 'opeth:usdc',
    feeOptions: {
      maxFeePerGas: '30000000001',
      maxPriorityFeePerGas: '30000000000'
    }
  });

  return result;
}

// 6. Self-Custody Multisig: Approve Batcher Smart Contract
async function approveTokenSelfCustodyMultisigHot() {
  const walletInstance = await bitgo
    .coin('opeth')
    .wallets()
    .get({ id: '<YOUR_WALLET_ID>' });

  // self-custody multisignature wallets can use buildErc20TokenApproval with walletPassphrase
  // to build, sign, and send in one operation
  const result = await walletInstance.buildErc20TokenApproval(
    'opeth:opeth:usdc',     // tokenName
    'VerySecurePassword1234'  // walletPassphrase
  );

  return result;
}

// 7. BitGo Offline Vault Multisig: Approve Batcher Smart Contract
async function approveTokenSelfCustodyMultisigCold() {
  const walletInstance = await bitgo
    .coin('opeth')
    .wallets()
    .get({ id: '<YOUR_WALLET_ID>' });

  // For BitGo Offline Vault Multisig wallets, get the unsigned transaction
  const tokenApprovalBuild = await walletInstance.buildErc20TokenApproval('opeth:usdc');

  // Sign offline using the OVC
  // ...

  // Send the half-signed transaction
  const sendResult = await walletInstance.sendTransaction({
    txHex: halfSignedTxHex,
  });

  return sendResult;
}