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-rw-r--r--packages/contract-wrappers/src/contract_wrappers/forwarder_wrapper.ts27
-rw-r--r--packages/contract-wrappers/src/utils/constants.ts1
-rw-r--r--packages/contract-wrappers/src/utils/market_orders_optimization_utils.ts43
3 files changed, 63 insertions, 8 deletions
diff --git a/packages/contract-wrappers/src/contract_wrappers/forwarder_wrapper.ts b/packages/contract-wrappers/src/contract_wrappers/forwarder_wrapper.ts
index 90cfbe2af..7d51889cf 100644
--- a/packages/contract-wrappers/src/contract_wrappers/forwarder_wrapper.ts
+++ b/packages/contract-wrappers/src/contract_wrappers/forwarder_wrapper.ts
@@ -11,6 +11,7 @@ import { txOptsSchema } from '../schemas/tx_opts_schema';
import { TransactionOpts } from '../types';
import { assert } from '../utils/assert';
import { constants } from '../utils/constants';
+import { marketOrdersOptimizationUtils } from '../utils/market_orders_optimization_utils';
import { ContractWrapper } from './contract_wrapper';
import { ForwarderContract } from './generated/forwarder';
@@ -75,14 +76,19 @@ export class ForwarderWrapper extends ContractWrapper {
this.getZRXTokenAddress(),
this.getEtherTokenAddress(),
);
+ // lowercase input addresses
const normalizedTakerAddress = takerAddress.toLowerCase();
const normalizedFeeRecipientAddress = feeRecipientAddress.toLowerCase();
+ // optimize orders
+ const optimizedMarketOrders = marketOrdersOptimizationUtils.optimizeMarketOrders(signedOrders);
+ const optimizedFeeOrders = marketOrdersOptimizationUtils.optimizeFeeOrders(signedFeeOrders);
+ // send transaction
const forwarderContractInstance = await this._getForwarderContractAsync();
const txHash = await forwarderContractInstance.marketSellOrdersWithEth.sendTransactionAsync(
- signedOrders,
- _.map(signedOrders, order => order.signature),
- signedFeeOrders,
- _.map(signedFeeOrders, order => order.signature),
+ optimizedMarketOrders,
+ _.map(optimizedMarketOrders, order => order.signature),
+ optimizedFeeOrders,
+ _.map(optimizedFeeOrders, order => order.signature),
feePercentage,
feeRecipientAddress,
{
@@ -138,15 +144,20 @@ export class ForwarderWrapper extends ContractWrapper {
this.getZRXTokenAddress(),
this.getEtherTokenAddress(),
);
+ // lowercase input addresses
const normalizedTakerAddress = takerAddress.toLowerCase();
const normalizedFeeRecipientAddress = feeRecipientAddress.toLowerCase();
+ // optimize orders
+ const optimizedMarketOrders = marketOrdersOptimizationUtils.optimizeMarketOrders(signedOrders);
+ const optimizedFeeOrders = marketOrdersOptimizationUtils.optimizeFeeOrders(signedFeeOrders);
+ // send transaction
const forwarderContractInstance = await this._getForwarderContractAsync();
const txHash = await forwarderContractInstance.marketBuyOrdersWithEth.sendTransactionAsync(
- signedOrders,
+ optimizedMarketOrders,
makerAssetFillAmount,
- _.map(signedOrders, order => order.signature),
- signedFeeOrders,
- _.map(signedFeeOrders, order => order.signature),
+ _.map(optimizedMarketOrders, order => order.signature),
+ optimizedFeeOrders,
+ _.map(optimizedFeeOrders, order => order.signature),
feePercentage,
feeRecipientAddress,
{
diff --git a/packages/contract-wrappers/src/utils/constants.ts b/packages/contract-wrappers/src/utils/constants.ts
index d436efefc..2df11538c 100644
--- a/packages/contract-wrappers/src/utils/constants.ts
+++ b/packages/contract-wrappers/src/utils/constants.ts
@@ -2,6 +2,7 @@ import { BigNumber } from '@0xproject/utils';
export const constants = {
NULL_ADDRESS: '0x0000000000000000000000000000000000000000',
+ NULL_BYTES: '0x',
TESTRPC_NETWORK_ID: 50,
INVALID_JUMP_PATTERN: 'invalid JUMP at',
REVERT: 'revert',
diff --git a/packages/contract-wrappers/src/utils/market_orders_optimization_utils.ts b/packages/contract-wrappers/src/utils/market_orders_optimization_utils.ts
new file mode 100644
index 000000000..0041f1a64
--- /dev/null
+++ b/packages/contract-wrappers/src/utils/market_orders_optimization_utils.ts
@@ -0,0 +1,43 @@
+import { SignedOrder } from '@0xproject/types';
+import * as _ from 'lodash';
+
+import { constants } from './constants';
+
+export const marketOrdersOptimizationUtils = {
+ /**
+ * Takes an array of orders and outputs an array of equivalent orders where all takerAssetData are '0x' and
+ * all makerAssetData are '0x' except for that of the first order, which retains its original value
+ * @param orders An array of SignedOrder objects
+ * @returns optimized orders
+ */
+ optimizeMarketOrders(orders: SignedOrder[]): SignedOrder[] {
+ const optimizedOrders = _.map(orders, (order, index) => {
+ const makerAssetData = index === 0 ? order.makerAssetData : constants.NULL_BYTES;
+ const takerAssetData = constants.NULL_BYTES;
+ return {
+ ...order,
+ makerAssetData,
+ takerAssetData,
+ };
+ });
+ return optimizedOrders;
+ },
+ /**
+ * Takes an array of orders and outputs an array of equivalent orders where all takerAssetData are '0x' and
+ * all makerAssetData are '0x'
+ * @param orders An array of SignedOrder objects
+ * @returns optimized orders
+ */
+ optimizeFeeOrders(orders: SignedOrder[]): SignedOrder[] {
+ const optimizedOrders = _.map(orders, order => {
+ const makerAssetData = constants.NULL_BYTES;
+ const takerAssetData = constants.NULL_BYTES;
+ return {
+ ...order,
+ makerAssetData,
+ takerAssetData,
+ };
+ });
+ return optimizedOrders;
+ },
+};