Remove 0x.js as a dependency from website

24 files changed, 137 insertions, 122 deletions

diff --git a/packages/website/package.json b/packages/website/package.json
index b718aea4d..e57404ca9 100644
--- a/packages/website/package.json
+++ b/packages/website/package.json
@@ -18,7 +18,6 @@
     "author": "Fabio Berger",
     "license": "Apache-2.0",
     "dependencies": {
-        "0x.js": "^0.38.0",
         "@0xproject/react-docs": "^0.0.12",
         "@0xproject/react-shared": "^0.1.7",
         "@0xproject/subproviders": "^0.10.2",
diff --git a/packages/website/ts/blockchain.ts b/packages/website/ts/blockchain.ts
index 32acb9d43..17dbee5c8 100644
--- a/packages/website/ts/blockchain.ts
+++ b/packages/website/ts/blockchain.ts
@@ -1,20 +1,15 @@
 import {
-    BlockParam,
     BlockRange,
+    ContractWrappers,
     DecodedLogEvent,
-    ECSignature,
     ExchangeContractEventArgs,
     ExchangeEvents,
     IndexedFilterValues,
     LogCancelContractEventArgs,
     LogFillContractEventArgs,
-    LogWithDecodedArgs,
-    Order,
-    SignedOrder,
     Token as ZeroExToken,
-    TransactionReceiptWithDecodedLogs,
-    ZeroEx,
-} from '0x.js';
+} from '@0xproject/contract-wrappers';
+import { isValidOrderHash, signOrderHashAsync } from '@0xproject/order-utils';
 import { EtherscanLinkSuffixes, utils as sharedUtils } from '@0xproject/react-shared';
 import {
     InjectedWeb3Subprovider,
@@ -23,7 +18,15 @@ import {
     RedundantSubprovider,
     Subprovider,
 } from '@0xproject/subproviders';
-import { Provider } from '@0xproject/types';
+import {
+    BlockParam,
+    ECSignature,
+    LogWithDecodedArgs,
+    Order,
+    Provider,
+    SignedOrder,
+    TransactionReceiptWithDecodedLogs,
+} from '@0xproject/types';
 import { BigNumber, intervalUtils, logUtils, promisify } from '@0xproject/utils';
 import { Web3Wrapper } from '@0xproject/web3-wrapper';
 import * as _ from 'lodash';
@@ -72,7 +75,7 @@ const providerToName: { [provider: string]: string } = {
 export class Blockchain {
     public networkId: number;
     public nodeVersion: string;
-    private _zeroEx: ZeroEx;
+    private _contractWrappers: ContractWrappers;
     private _dispatcher: Dispatcher;
     private _web3Wrapper?: Web3Wrapper;
     private _blockchainWatcher?: BlockchainWatcher;
@@ -164,8 +167,8 @@ export class Blockchain {
         }
     }
     public async isAddressInTokenRegistryAsync(tokenAddress: string): Promise<boolean> {
-        utils.assert(!_.isUndefined(this._zeroEx), 'ZeroEx must be instantiated.');
-        const tokenIfExists = await this._zeroEx.tokenRegistry.getTokenIfExistsAsync(tokenAddress);
+        utils.assert(!_.isUndefined(this._contractWrappers), 'Contract Wrappers must be instantiated.');
+        const tokenIfExists = await this._contractWrappers.tokenRegistry.getTokenIfExistsAsync(tokenAddress);
         return !_.isUndefined(tokenIfExists);
     }
     public getLedgerDerivationPathIfExists(): string {
@@ -182,7 +185,7 @@ export class Blockchain {
         this._ledgerSubprovider.setPath(path);
     }
     public async updateProviderToLedgerAsync(networkId: number): Promise<void> {
-        utils.assert(!_.isUndefined(this._zeroEx), 'ZeroEx must be instantiated.');
+        utils.assert(!_.isUndefined(this._contractWrappers), 'Contract Wrappers must be instantiated.');
 
         const isU2FSupported = await utils.isU2FSupportedAsync();
         if (!isU2FSupported) {
@@ -225,12 +228,12 @@ export class Blockchain {
             this.networkId,
             shouldPollUserAddress,
         );
-        this._zeroEx.setProvider(provider, this.networkId);
+        this._contractWrappers.setProvider(provider, this.networkId);
         this._blockchainWatcher.startEmittingNetworkConnectionAndUserBalanceState();
         this._dispatcher.updateProviderType(ProviderType.Ledger);
     }
     public async updateProviderToInjectedAsync(): Promise<void> {
-        utils.assert(!_.isUndefined(this._zeroEx), 'ZeroEx must be instantiated.');
+        utils.assert(!_.isUndefined(this._contractWrappers), 'Contract Wrappers must be instantiated.');
 
         if (_.isUndefined(this._cachedProvider)) {
             return; // Going from injected to injected, so we noop
@@ -253,7 +256,7 @@ export class Blockchain {
         const userAddresses = await this._web3Wrapper.getAvailableAddressesAsync();
         this._userAddressIfExists = userAddresses[0];
 
-        this._zeroEx.setProvider(provider, this.networkId);
+        this._contractWrappers.setProvider(provider, this.networkId);
 
         await this.fetchTokenInformationAsync();
         this._blockchainWatcher.startEmittingNetworkConnectionAndUserBalanceState();
@@ -264,10 +267,10 @@ export class Blockchain {
     public async setProxyAllowanceAsync(token: Token, amountInBaseUnits: BigNumber): Promise<void> {
         utils.assert(this.isValidAddress(token.address), BlockchainCallErrs.TokenAddressIsInvalid);
         utils.assert(this._doesUserAddressExist(), BlockchainCallErrs.UserHasNoAssociatedAddresses);
-        utils.assert(!_.isUndefined(this._zeroEx), 'ZeroEx must be instantiated.');
+        utils.assert(!_.isUndefined(this._contractWrappers), 'Contract Wrappers must be instantiated.');
 
         this._showFlashMessageIfLedger();
-        const txHash = await this._zeroEx.token.setProxyAllowanceAsync(
+        const txHash = await this._contractWrappers.token.setProxyAllowanceAsync(
             token.address,
             this._userAddressIfExists,
             amountInBaseUnits,
@@ -278,11 +281,11 @@ export class Blockchain {
         await this._showEtherScanLinkAndAwaitTransactionMinedAsync(txHash);
     }
     public async transferAsync(token: Token, toAddress: string, amountInBaseUnits: BigNumber): Promise<void> {
-        utils.assert(!_.isUndefined(this._zeroEx), 'ZeroEx must be instantiated.');
+        utils.assert(!_.isUndefined(this._contractWrappers), 'ContractWrappers must be instantiated.');
         utils.assert(this._doesUserAddressExist(), BlockchainCallErrs.UserHasNoAssociatedAddresses);
 
         this._showFlashMessageIfLedger();
-        const txHash = await this._zeroEx.token.transferAsync(
+        const txHash = await this._contractWrappers.token.transferAsync(
             token.address,
             this._userAddressIfExists,
             toAddress,
@@ -326,13 +329,13 @@ export class Blockchain {
         return zeroExSignedOrder;
     }
     public async fillOrderAsync(signedOrder: SignedOrder, fillTakerTokenAmount: BigNumber): Promise<BigNumber> {
-        utils.assert(!_.isUndefined(this._zeroEx), 'ZeroEx must be instantiated.');
+        utils.assert(!_.isUndefined(this._contractWrappers), 'ContractWrappers must be instantiated.');
         utils.assert(this._doesUserAddressExist(), BlockchainCallErrs.UserHasNoAssociatedAddresses);
 
         const shouldThrowOnInsufficientBalanceOrAllowance = true;
 
         this._showFlashMessageIfLedger();
-        const txHash = await this._zeroEx.exchange.fillOrderAsync(
+        const txHash = await this._contractWrappers.exchange.fillOrderAsync(
             signedOrder,
             fillTakerTokenAmount,
             shouldThrowOnInsufficientBalanceOrAllowance,
@@ -343,7 +346,7 @@ export class Blockchain {
         );
         const receipt = await this._showEtherScanLinkAndAwaitTransactionMinedAsync(txHash);
         const logs: Array<LogWithDecodedArgs<ExchangeContractEventArgs>> = receipt.logs as any;
-        this._zeroEx.exchange.throwLogErrorsAsErrors(logs);
+        this._contractWrappers.exchange.throwLogErrorsAsErrors(logs);
         const logFill = _.find(logs, { event: 'LogFill' });
         const args = (logFill.args as any) as LogFillContractEventArgs;
         const filledTakerTokenAmount = args.filledTakerTokenAmount;
@@ -351,32 +354,32 @@ export class Blockchain {
     }
     public async cancelOrderAsync(signedOrder: SignedOrder, cancelTakerTokenAmount: BigNumber): Promise<BigNumber> {
         this._showFlashMessageIfLedger();
-        const txHash = await this._zeroEx.exchange.cancelOrderAsync(signedOrder, cancelTakerTokenAmount, {
+        const txHash = await this._contractWrappers.exchange.cancelOrderAsync(signedOrder, cancelTakerTokenAmount, {
             gasPrice: this._defaultGasPrice,
         });
         const receipt = await this._showEtherScanLinkAndAwaitTransactionMinedAsync(txHash);
         const logs: Array<LogWithDecodedArgs<ExchangeContractEventArgs>> = receipt.logs as any;
-        this._zeroEx.exchange.throwLogErrorsAsErrors(logs);
+        this._contractWrappers.exchange.throwLogErrorsAsErrors(logs);
         const logCancel = _.find(logs, { event: ExchangeEvents.LogCancel });
         const args = (logCancel.args as any) as LogCancelContractEventArgs;
         const cancelledTakerTokenAmount = args.cancelledTakerTokenAmount;
         return cancelledTakerTokenAmount;
     }
     public async getUnavailableTakerAmountAsync(orderHash: string): Promise<BigNumber> {
-        utils.assert(ZeroEx.isValidOrderHash(orderHash), 'Must be valid orderHash');
-        utils.assert(!_.isUndefined(this._zeroEx), 'ZeroEx must be instantiated.');
-        const unavailableTakerAmount = await this._zeroEx.exchange.getUnavailableTakerAmountAsync(orderHash);
+        utils.assert(isValidOrderHash(orderHash), 'Must be valid orderHash');
+        utils.assert(!_.isUndefined(this._contractWrappers), 'ContractWrappers must be instantiated.');
+        const unavailableTakerAmount = await this._contractWrappers.exchange.getUnavailableTakerAmountAsync(orderHash);
         return unavailableTakerAmount;
     }
     public getExchangeContractAddressIfExists(): string | undefined {
-        return this._zeroEx.exchange.getContractAddress();
+        return this._contractWrappers.exchange.getContractAddress();
     }
     public async validateFillOrderThrowIfInvalidAsync(
         signedOrder: SignedOrder,
         fillTakerTokenAmount: BigNumber,
         takerAddress: string,
     ): Promise<void> {
-        await this._zeroEx.exchange.validateFillOrderThrowIfInvalidAsync(
+        await this._contractWrappers.exchange.validateFillOrderThrowIfInvalidAsync(
             signedOrder,
             fillTakerTokenAmount,
             takerAddress,
@@ -386,7 +389,7 @@ export class Blockchain {
         order: Order,
         cancelTakerTokenAmount: BigNumber,
     ): Promise<void> {
-        await this._zeroEx.exchange.validateCancelOrderThrowIfInvalidAsync(order, cancelTakerTokenAmount);
+        await this._contractWrappers.exchange.validateCancelOrderThrowIfInvalidAsync(order, cancelTakerTokenAmount);
     }
     public isValidAddress(address: string): boolean {
         const lowercaseAddress = address.toLowerCase();
@@ -421,7 +424,7 @@ export class Blockchain {
         return newTokenBalancePromise;
     }
     public async signOrderHashAsync(orderHash: string): Promise<ECSignature> {
-        utils.assert(!_.isUndefined(this._zeroEx), 'ZeroEx must be instantiated.');
+        utils.assert(!_.isUndefined(this._contractWrappers), 'ContractWrappers must be instantiated.');
         const makerAddress = this._userAddressIfExists;
         // If makerAddress is undefined, this means they have a web3 instance injected into their browser
         // but no account addresses associated with it.
@@ -438,11 +441,8 @@ export class Blockchain {
         if ((isParityNode && !isLedgerSigner) || isTestRpc || isLedgerSigner) {
             shouldAddPersonalMessagePrefix = false;
         }
-        const ecSignature = await this._zeroEx.signOrderHashAsync(
-            orderHash,
-            makerAddress,
-            shouldAddPersonalMessagePrefix,
-        );
+        const provider = this._contractWrappers.getProvider();
+        const ecSignature = await signOrderHashAsync(provider, orderHash, makerAddress, shouldAddPersonalMessagePrefix);
         this._dispatcher.updateECSignature(ecSignature);
         return ecSignature;
     }
@@ -461,11 +461,11 @@ export class Blockchain {
         return balanceInWei;
     }
     public async convertEthToWrappedEthTokensAsync(etherTokenAddress: string, amount: BigNumber): Promise<void> {
-        utils.assert(!_.isUndefined(this._zeroEx), 'ZeroEx must be instantiated.');
+        utils.assert(!_.isUndefined(this._contractWrappers), 'ContractWrappers must be instantiated.');
         utils.assert(this._doesUserAddressExist(), BlockchainCallErrs.UserHasNoAssociatedAddresses);
 
         this._showFlashMessageIfLedger();
-        const txHash = await this._zeroEx.etherToken.depositAsync(
+        const txHash = await this._contractWrappers.etherToken.depositAsync(
             etherTokenAddress,
             amount,
             this._userAddressIfExists,
@@ -476,11 +476,11 @@ export class Blockchain {
         await this._showEtherScanLinkAndAwaitTransactionMinedAsync(txHash);
     }
     public async convertWrappedEthTokensToEthAsync(etherTokenAddress: string, amount: BigNumber): Promise<void> {
-        utils.assert(!_.isUndefined(this._zeroEx), 'ZeroEx must be instantiated.');
+        utils.assert(!_.isUndefined(this._contractWrappers), 'ContractWrappers must be instantiated.');
         utils.assert(this._doesUserAddressExist(), BlockchainCallErrs.UserHasNoAssociatedAddresses);
 
         this._showFlashMessageIfLedger();
-        const txHash = await this._zeroEx.etherToken.withdrawAsync(
+        const txHash = await this._contractWrappers.etherToken.withdrawAsync(
             etherTokenAddress,
             amount,
             this._userAddressIfExists,
@@ -507,7 +507,7 @@ export class Blockchain {
         ownerAddressIfExists: string,
         tokenAddress: string,
     ): Promise<BigNumber[]> {
-        utils.assert(!_.isUndefined(this._zeroEx), 'ZeroEx must be instantiated.');
+        utils.assert(!_.isUndefined(this._contractWrappers), 'ContractWrappers must be instantiated.');
 
         if (_.isUndefined(ownerAddressIfExists)) {
             const zero = new BigNumber(0);
@@ -516,14 +516,16 @@ export class Blockchain {
         let balance = new BigNumber(0);
         let allowance = new BigNumber(0);
         if (this._doesUserAddressExist()) {
-            balance = await this._zeroEx.token.getBalanceAsync(tokenAddress, ownerAddressIfExists);
-            allowance = await this._zeroEx.token.getProxyAllowanceAsync(tokenAddress, ownerAddressIfExists);
+            balance = await this._contractWrappers.token.getBalanceAsync(tokenAddress, ownerAddressIfExists);
+            allowance = await this._contractWrappers.token.getProxyAllowanceAsync(tokenAddress, ownerAddressIfExists);
         }
         return [balance, allowance];
     }
     public async getUserAccountsAsync(): Promise<string[]> {
-        utils.assert(!_.isUndefined(this._zeroEx), 'ZeroEx must be instantiated.');
-        const userAccountsIfExists = await this._zeroEx.getAvailableAddressesAsync();
+        utils.assert(!_.isUndefined(this._contractWrappers), 'ContractWrappers must be instantiated.');
+        const provider = this._contractWrappers.getProvider();
+        const web3Wrapper = new Web3Wrapper(provider);
+        const userAccountsIfExists = await web3Wrapper.getAvailableAddressesAsync();
         return userAccountsIfExists;
     }
     // HACK: When a user is using a Ledger, we simply dispatch the selected userAddress, which
@@ -619,7 +621,9 @@ export class Blockchain {
                 etherScanLinkIfExists,
             }),
         );
-        const receipt = await this._zeroEx.awaitTransactionMinedAsync(txHash);
+        const provider = this._contractWrappers.getProvider();
+        const web3Wrapper = new Web3Wrapper(provider);
+        const receipt = await web3Wrapper.awaitTransactionMinedAsync(txHash);
         return receipt;
     }
     private _doesUserAddressExist(): boolean {
@@ -633,7 +637,7 @@ export class Blockchain {
             return; // short-circuit
         }
 
-        if (!_.isUndefined(this._zeroEx)) {
+        if (!_.isUndefined(this._contractWrappers)) {
             // Since we do not have an index on the `taker` address and want to show
             // transactions where an account is either the `maker` or `taker`, we loop
             // through all fill events, and filter/cache them client-side.
@@ -642,14 +646,14 @@ export class Blockchain {
         }
     }
     private async _startListeningForExchangeLogFillEventsAsync(indexFilterValues: IndexedFilterValues): Promise<void> {
-        utils.assert(!_.isUndefined(this._zeroEx), 'ZeroEx must be instantiated.');
+        utils.assert(!_.isUndefined(this._contractWrappers), 'ContractWrappers must be instantiated.');
         utils.assert(this._doesUserAddressExist(), BlockchainCallErrs.UserHasNoAssociatedAddresses);
 
         // Fetch historical logs
         await this._fetchHistoricalExchangeLogFillEventsAsync(indexFilterValues);
 
         // Start a subscription for new logs
-        this._zeroEx.exchange.subscribe(
+        this._contractWrappers.exchange.subscribe(
             ExchangeEvents.LogFill,
             indexFilterValues,
             async (err: Error, decodedLogEvent: DecodedLogEvent<LogFillContractEventArgs>) => {
@@ -684,7 +688,7 @@ export class Blockchain {
             fromBlock,
             toBlock: 'latest' as BlockParam,
         };
-        const decodedLogs = await this._zeroEx.exchange.getLogsAsync<LogFillContractEventArgs>(
+        const decodedLogs = await this._contractWrappers.exchange.getLogsAsync<LogFillContractEventArgs>(
             ExchangeEvents.LogFill,
             blockRange,
             indexFilterValues,
@@ -741,11 +745,11 @@ export class Blockchain {
         }
     }
     private _stopWatchingExchangeLogFillEvents(): void {
-        this._zeroEx.exchange.unsubscribeAll();
+        this._contractWrappers.exchange.unsubscribeAll();
     }
     private async _getTokenRegistryTokensByAddressAsync(): Promise<TokenByAddress> {
-        utils.assert(!_.isUndefined(this._zeroEx), 'ZeroEx must be instantiated.');
-        const tokenRegistryTokens = await this._zeroEx.tokenRegistry.getTokensAsync();
+        utils.assert(!_.isUndefined(this._contractWrappers), 'ContractWrappers must be instantiated.');
+        const tokenRegistryTokens = await this._contractWrappers.tokenRegistry.getTokensAsync();
 
         const tokenByAddress: TokenByAddress = {};
         _.each(tokenRegistryTokens, (t: ZeroExToken, i: number) => {
@@ -787,14 +791,12 @@ export class Blockchain {
         const provider = await Blockchain._getProviderAsync(injectedWeb3, networkIdIfExists);
         this.networkId = !_.isUndefined(networkIdIfExists)
             ? networkIdIfExists
-            : configs.IS_MAINNET_ENABLED
-                ? constants.NETWORK_ID_MAINNET
-                : constants.NETWORK_ID_KOVAN;
+            : configs.IS_MAINNET_ENABLED ? constants.NETWORK_ID_MAINNET : constants.NETWORK_ID_KOVAN;
         this._dispatcher.updateNetworkId(this.networkId);
         const zeroExConfigs = {
             networkId: this.networkId,
         };
-        this._zeroEx = new ZeroEx(provider, zeroExConfigs);
+        this._contractWrappers = new ContractWrappers(provider, zeroExConfigs);
         this._updateProviderName(injectedWeb3);
         const shouldPollUserAddress = true;
         this._web3Wrapper = new Web3Wrapper(provider);
diff --git a/packages/website/ts/components/dialogs/eth_weth_conversion_dialog.tsx b/packages/website/ts/components/dialogs/eth_weth_conversion_dialog.tsx
index 069a75560..d647bba80 100644
--- a/packages/website/ts/components/dialogs/eth_weth_conversion_dialog.tsx
+++ b/packages/website/ts/components/dialogs/eth_weth_conversion_dialog.tsx
@@ -1,6 +1,6 @@
-import { ZeroEx } from '0x.js';
 import { colors } from '@0xproject/react-shared';
 import { BigNumber } from '@0xproject/utils';
+import { Web3Wrapper } from '@0xproject/web3-wrapper';
 import * as _ from 'lodash';
 import Dialog from 'material-ui/Dialog';
 import FlatButton from 'material-ui/FlatButton';
@@ -78,7 +78,7 @@ export class EthWethConversionDialog extends React.Component<
                 ? 'Convert your Ether into a tokenized, tradable form.'
                 : "Convert your Wrapped Ether back into it's native form.";
         const isWrappedVersion = this.props.direction === Side.Receive;
-        const etherBalanceInEth = ZeroEx.toUnitAmount(this.props.etherBalanceInWei, constants.DECIMAL_PLACES_ETH);
+        const etherBalanceInEth = Web3Wrapper.toUnitAmount(this.props.etherBalanceInWei, constants.DECIMAL_PLACES_ETH);
         return (
             <div>
                 <div className="pb2">{explanation}</div>
diff --git a/packages/website/ts/components/dialogs/ledger_config_dialog.tsx b/packages/website/ts/components/dialogs/ledger_config_dialog.tsx
index 3c839d6f5..196414407 100644
--- a/packages/website/ts/components/dialogs/ledger_config_dialog.tsx
+++ b/packages/website/ts/components/dialogs/ledger_config_dialog.tsx
@@ -1,6 +1,6 @@
-import { ZeroEx } from '0x.js';
 import { colors, constants as sharedConstants } from '@0xproject/react-shared';
 import { BigNumber, logUtils } from '@0xproject/utils';
+import { Web3Wrapper } from '@0xproject/web3-wrapper';
 import * as _ from 'lodash';
 import Dialog from 'material-ui/Dialog';
 import FlatButton from 'material-ui/FlatButton';
@@ -168,7 +168,7 @@ export class LedgerConfigDialog extends React.Component<LedgerConfigDialogProps,
             // We specifically prefix kovan ETH.
             // TODO: We should probably add prefixes for all networks
             const isKovanNetwork = networkName === 'Kovan';
-            const balanceInEth = ZeroEx.toUnitAmount(balanceInWei, constants.DECIMAL_PLACES_ETH);
+            const balanceInEth = Web3Wrapper.toUnitAmount(balanceInWei, constants.DECIMAL_PLACES_ETH);
             const balanceString = `${balanceInEth.toString()} ${isKovanNetwork ? 'Kovan ' : ''}ETH`;
             return (
                 <TableRow key={userAddress} style={{ height: 40 }}>
diff --git a/packages/website/ts/components/eth_weth_conversion_button.tsx b/packages/website/ts/components/eth_weth_conversion_button.tsx
index e8db42a7a..4b91a2ebd 100644
--- a/packages/website/ts/components/eth_weth_conversion_button.tsx
+++ b/packages/website/ts/components/eth_weth_conversion_button.tsx
@@ -1,5 +1,5 @@
-import { ZeroEx } from '0x.js';
 import { BigNumber, logUtils } from '@0xproject/utils';
+import { Web3Wrapper } from '@0xproject/web3-wrapper';
 import * as _ from 'lodash';
 import RaisedButton from 'material-ui/RaisedButton';
 import * as React from 'react';
@@ -95,11 +95,11 @@ export class EthWethConversionButton extends React.Component<
         try {
             if (direction === Side.Deposit) {
                 await this.props.blockchain.convertEthToWrappedEthTokensAsync(token.address, value);
-                const ethAmount = ZeroEx.toUnitAmount(value, constants.DECIMAL_PLACES_ETH);
+                const ethAmount = Web3Wrapper.toUnitAmount(value, constants.DECIMAL_PLACES_ETH);
                 this.props.dispatcher.showFlashMessage(`Successfully wrapped ${ethAmount.toString()} ETH to WETH`);
             } else {
                 await this.props.blockchain.convertWrappedEthTokensToEthAsync(token.address, value);
-                const tokenAmount = ZeroEx.toUnitAmount(value, token.decimals);
+                const tokenAmount = Web3Wrapper.toUnitAmount(value, token.decimals);
                 this.props.dispatcher.showFlashMessage(`Successfully unwrapped ${tokenAmount.toString()} WETH to ETH`);
             }
             if (!this.props.isOutdatedWrappedEther) {
diff --git a/packages/website/ts/components/eth_wrappers.tsx b/packages/website/ts/components/eth_wrappers.tsx
index f19b05861..a5758a66a 100644
--- a/packages/website/ts/components/eth_wrappers.tsx
+++ b/packages/website/ts/components/eth_wrappers.tsx
@@ -1,6 +1,6 @@
-import { ZeroEx } from '0x.js';
 import { colors, EtherscanLinkSuffixes, utils as sharedUtils } from '@0xproject/react-shared';
 import { BigNumber } from '@0xproject/utils';
+import { Web3Wrapper } from '@0xproject/web3-wrapper';
 import * as _ from 'lodash';
 import Divider from 'material-ui/Divider';
 import { Table, TableBody, TableHeader, TableHeaderColumn, TableRow, TableRowColumn } from 'material-ui/Table';
@@ -85,7 +85,7 @@ export class EthWrappers extends React.Component<EthWrappersProps, EthWrappersSt
     }
     public render(): React.ReactNode {
         const etherToken = this._getEthToken();
-        const wethBalance = ZeroEx.toUnitAmount(this.state.ethTokenState.balance, constants.DECIMAL_PLACES_ETH);
+        const wethBalance = Web3Wrapper.toUnitAmount(this.state.ethTokenState.balance, constants.DECIMAL_PLACES_ETH);
         const isBidirectional = true;
         const etherscanUrl = sharedUtils.getEtherScanLinkIfExists(
             etherToken.address,
@@ -93,7 +93,7 @@ export class EthWrappers extends React.Component<EthWrappersProps, EthWrappersSt
             EtherscanLinkSuffixes.Address,
         );
         const tokenLabel = this._renderToken('Wrapped Ether', etherToken.address, configs.ICON_URL_BY_SYMBOL.WETH);
-        const userEtherBalanceInEth = ZeroEx.toUnitAmount(
+        const userEtherBalanceInEth = Web3Wrapper.toUnitAmount(
             this.props.userEtherBalanceInWei,
             constants.DECIMAL_PLACES_ETH,
         );
@@ -265,7 +265,7 @@ export class EthWrappers extends React.Component<EthWrappersProps, EthWrappersSt
                 const outdatedEtherTokenState = this.state.outdatedWETHStateByAddress[outdatedWETHIfExists.address];
                 const isStateLoaded = outdatedEtherTokenState.isLoaded;
                 const balanceInEthIfExists = isStateLoaded
-                    ? ZeroEx.toUnitAmount(outdatedEtherTokenState.balance, constants.DECIMAL_PLACES_ETH).toFixed(
+                    ? Web3Wrapper.toUnitAmount(outdatedEtherTokenState.balance, constants.DECIMAL_PLACES_ETH).toFixed(
                           configs.AMOUNT_DISPLAY_PRECSION,
                       )
                     : undefined;
diff --git a/packages/website/ts/components/fill_order.tsx b/packages/website/ts/components/fill_order.tsx
index 59c32cebc..0168ec8f6 100644
--- a/packages/website/ts/components/fill_order.tsx
+++ b/packages/website/ts/components/fill_order.tsx
@@ -1,6 +1,8 @@
-import { Order as ZeroExOrder, ZeroEx } from '0x.js';
+import { getOrderHashHex, isValidSignature } from '@0xproject/order-utils';
 import { colors, constants as sharedConstants } from '@0xproject/react-shared';
+import { Order as ZeroExOrder } from '@0xproject/types';
 import { BigNumber, logUtils } from '@0xproject/utils';
+import { Web3Wrapper } from '@0xproject/web3-wrapper';
 import * as accounting from 'accounting';
 import * as _ from 'lodash';
 import { Card, CardHeader, CardText } from 'material-ui/Card';
@@ -433,15 +435,15 @@ export class FillOrder extends React.Component<FillOrderProps, FillOrderState> {
                 takerTokenAddress: parsedOrder.signedOrder.takerTokenAddress,
                 takerTokenAmount: takerAmount,
             };
-            orderHash = ZeroEx.getOrderHashHex(zeroExOrder);
+            orderHash = getOrderHashHex(zeroExOrder);
 
             const exchangeContractAddr = this.props.blockchain.getExchangeContractAddressIfExists();
             const signature = parsedOrder.signedOrder.ecSignature;
-            const isValidSignature = ZeroEx.isValidSignature(orderHash, signature, parsedOrder.signedOrder.maker);
+            const isSignatureValid = isValidSignature(orderHash, signature, parsedOrder.signedOrder.maker);
             if (exchangeContractAddr !== parsedOrder.signedOrder.exchangeContractAddress) {
                 orderJSONErrMsg = 'This order was made on another network or using a deprecated Exchange contract';
                 parsedOrder = undefined;
-            } else if (!isValidSignature) {
+            } else if (!isSignatureValid) {
                 orderJSONErrMsg = 'Order signature is invalid';
                 parsedOrder = undefined;
             } else {
@@ -600,7 +602,7 @@ export class FillOrder extends React.Component<FillOrderProps, FillOrderState> {
         const takerTokenAmount = new BigNumber(parsedOrder.signedOrder.takerTokenAmount);
 
         const signedOrder = this.props.blockchain.portalOrderToZeroExOrder(parsedOrder);
-        const orderHash = ZeroEx.getOrderHashHex(signedOrder);
+        const orderHash = getOrderHashHex(signedOrder);
         const unavailableTakerAmount = await this.props.blockchain.getUnavailableTakerAmountAsync(orderHash);
         const availableTakerTokenAmount = takerTokenAmount.minus(unavailableTakerAmount);
         try {
@@ -646,7 +648,7 @@ export class FillOrder extends React.Component<FillOrderProps, FillOrderState> {
         }
     }
     private _formatCurrencyAmount(amount: BigNumber, decimals: number): number {
-        const unitAmount = ZeroEx.toUnitAmount(amount, decimals);
+        const unitAmount = Web3Wrapper.toUnitAmount(amount, decimals);
         const roundedUnitAmount = Math.round(unitAmount.toNumber() * 100000) / 100000;
         return roundedUnitAmount;
     }
diff --git a/packages/website/ts/components/fill_order_json.tsx b/packages/website/ts/components/fill_order_json.tsx
index 97297d5a1..90eedbb18 100644
--- a/packages/website/ts/components/fill_order_json.tsx
+++ b/packages/website/ts/components/fill_order_json.tsx
@@ -1,4 +1,4 @@
-import { ZeroEx } from '0x.js';
+import { generatePseudoRandomSalt } from '@0xproject/order-utils';
 import { BigNumber } from '@0xproject/utils';
 import * as _ from 'lodash';
 import Paper from 'material-ui/Paper';
@@ -38,7 +38,7 @@ export class FillOrderJSON extends React.Component<FillOrderJSONProps, FillOrder
             s: '937862111edcba395f8a9e0cc1b2c5e12320...',
             v: 27,
         };
-        const hintSalt = ZeroEx.generatePseudoRandomSalt();
+        const hintSalt = generatePseudoRandomSalt();
         const feeRecipient = constants.NULL_ADDRESS;
         const hintOrder = utils.generateOrder(
             exchangeContract,
diff --git a/packages/website/ts/components/flash_messages/token_send_completed.tsx b/packages/website/ts/components/flash_messages/token_send_completed.tsx
index bb5adfa4e..f3f1ea2fc 100644
--- a/packages/website/ts/components/flash_messages/token_send_completed.tsx
+++ b/packages/website/ts/components/flash_messages/token_send_completed.tsx
@@ -1,6 +1,6 @@
-import { ZeroEx } from '0x.js';
 import { colors } from '@0xproject/react-shared';
 import { BigNumber } from '@0xproject/utils';
+import { Web3Wrapper } from '@0xproject/web3-wrapper';
 import * as _ from 'lodash';
 import * as React from 'react';
 import { Token } from 'ts/types';
@@ -22,7 +22,7 @@ export class TokenSendCompleted extends React.Component<TokenSendCompletedProps,
                 Verify on Etherscan
             </a>
         );
-        const amountInUnits = ZeroEx.toUnitAmount(this.props.amountInBaseUnits, this.props.token.decimals);
+        const amountInUnits = Web3Wrapper.toUnitAmount(this.props.amountInBaseUnits, this.props.token.decimals);
         const truncatedAddress = utils.getAddressBeginAndEnd(this.props.toAddress);
         return (
             <div>
diff --git a/packages/website/ts/components/generate_order/generate_order_form.tsx b/packages/website/ts/components/generate_order/generate_order_form.tsx
index d46c29058..5f968a5e4 100644
--- a/packages/website/ts/components/generate_order/generate_order_form.tsx
+++ b/packages/website/ts/components/generate_order/generate_order_form.tsx
@@ -1,5 +1,6 @@
-import { ECSignature, Order, ZeroEx } from '0x.js';
+import { generatePseudoRandomSalt, getOrderHashHex } from '@0xproject/order-utils';
 import { colors, constants as sharedConstants } from '@0xproject/react-shared';
+import { ECSignature, Order } from '@0xproject/types';
 import { BigNumber, logUtils } from '@0xproject/utils';
 import * as _ from 'lodash';
 import Dialog from 'material-ui/Dialog';
@@ -78,7 +79,7 @@ export class GenerateOrderForm extends React.Component<GenerateOrderFormProps, G
                                   specified, anyone is able to fill it.';
         const exchangeContractIfExists = this.props.blockchain.getExchangeContractAddressIfExists();
         const initialTakerAddress =
-            this.props.orderTakerAddress === ZeroEx.NULL_ADDRESS ? '' : this.props.orderTakerAddress;
+            this.props.orderTakerAddress === constants.NULL_ADDRESS ? '' : this.props.orderTakerAddress;
         return (
             <div className="clearfix mb2 lg-px4 md-px4 sm-px2">
                 <h3>Generate an order</h3>
@@ -224,7 +225,7 @@ export class GenerateOrderForm extends React.Component<GenerateOrderFormProps, G
         // Upon closing the order JSON dialog, we update the orderSalt stored in the Redux store
         // with a new value so that if a user signs the identical order again, the newly signed
         // orderHash will not collide with the previously generated orderHash.
-        this.props.dispatcher.updateOrderSalt(ZeroEx.generatePseudoRandomSalt());
+        this.props.dispatcher.updateOrderSalt(generatePseudoRandomSalt());
         this.setState({
             signingState: SigningState.UNSIGNED,
         });
@@ -305,7 +306,7 @@ export class GenerateOrderForm extends React.Component<GenerateOrderFormProps, G
             takerTokenAddress: hashData.receiveTokenContractAddr,
             takerTokenAmount: hashData.receiveAmount,
         };
-        const orderHash = ZeroEx.getOrderHashHex(zeroExOrder);
+        const orderHash = getOrderHashHex(zeroExOrder);
 
         let globalErrMsg = '';
         try {
@@ -348,7 +349,7 @@ export class GenerateOrderForm extends React.Component<GenerateOrderFormProps, G
     }
     private _updateOrderAddress(address?: string): void {
         if (!_.isUndefined(address)) {
-            const normalizedAddress = _.isEmpty(address) ? ZeroEx.NULL_ADDRESS : address;
+            const normalizedAddress = _.isEmpty(address) ? constants.NULL_ADDRESS : address;
             this.props.dispatcher.updateOrderTakerAddress(normalizedAddress);
         }
     }
diff --git a/packages/website/ts/components/inputs/eth_amount_input.tsx b/packages/website/ts/components/inputs/eth_amount_input.tsx
index fa684d85c..1f0f27410 100644
--- a/packages/website/ts/components/inputs/eth_amount_input.tsx
+++ b/packages/website/ts/components/inputs/eth_amount_input.tsx
@@ -1,5 +1,5 @@
-import { ZeroEx } from '0x.js';
 import { BigNumber } from '@0xproject/utils';
+import { Web3Wrapper } from '@0xproject/web3-wrapper';
 import * as _ from 'lodash';
 import * as React from 'react';
 import { BalanceBoundedInput } from 'ts/components/inputs/balance_bounded_input';
@@ -34,7 +34,7 @@ export class EthAmountInput extends React.Component<EthAmountInputProps, EthAmou
     };
     public render(): React.ReactNode {
         const amount = this.props.amount
-            ? ZeroEx.toUnitAmount(this.props.amount, constants.DECIMAL_PLACES_ETH)
+            ? Web3Wrapper.toUnitAmount(this.props.amount, constants.DECIMAL_PLACES_ETH)
             : undefined;
         return (
             <div className="flex overflow-hidden" style={this.props.style}>
@@ -61,7 +61,7 @@ export class EthAmountInput extends React.Component<EthAmountInputProps, EthAmou
     private _onChange(isValid: boolean, amount?: BigNumber): void {
         const baseUnitAmountIfExists = _.isUndefined(amount)
             ? undefined
-            : ZeroEx.toBaseUnitAmount(amount, constants.DECIMAL_PLACES_ETH);
+            : Web3Wrapper.toBaseUnitAmount(amount, constants.DECIMAL_PLACES_ETH);
         this.props.onChange(isValid, baseUnitAmountIfExists);
     }
     private _getLabelStyle(): React.CSSProperties {
diff --git a/packages/website/ts/components/inputs/hash_input.tsx b/packages/website/ts/components/inputs/hash_input.tsx
index 37d4af138..8d9cdfc0b 100644
--- a/packages/website/ts/components/inputs/hash_input.tsx
+++ b/packages/website/ts/components/inputs/hash_input.tsx
@@ -1,5 +1,6 @@
-import { Order, ZeroEx } from '0x.js';
+import { getOrderHashHex } from '@0xproject/order-utils';
 import { Styles } from '@0xproject/react-shared';
+import { Order } from '@0xproject/types';
 import * as _ from 'lodash';
 import * as React from 'react';
 import ReactTooltip = require('react-tooltip');
@@ -57,7 +58,7 @@ export class HashInput extends React.Component<HashInputProps, HashInputState> {
             takerTokenAddress: hashData.receiveTokenContractAddr,
             takerTokenAmount: hashData.receiveAmount,
         };
-        const orderHash = ZeroEx.getOrderHashHex(order);
+        const orderHash = getOrderHashHex(order);
         return orderHash;
     }
 }
diff --git a/packages/website/ts/components/inputs/token_amount_input.tsx b/packages/website/ts/components/inputs/token_amount_input.tsx
index f040928f1..a67120320 100644
--- a/packages/website/ts/components/inputs/token_amount_input.tsx
+++ b/packages/website/ts/components/inputs/token_amount_input.tsx
@@ -1,6 +1,6 @@
-import { ZeroEx } from '0x.js';
 import { colors } from '@0xproject/react-shared';
 import { BigNumber } from '@0xproject/utils';
+import { Web3Wrapper } from '@0xproject/web3-wrapper';
 import * as _ from 'lodash';
 import * as React from 'react';
 import { Link } from 'react-router-dom';
@@ -75,14 +75,14 @@ export class TokenAmountInput extends React.Component<TokenAmountInputProps, Tok
     }
     public render(): React.ReactNode {
         const amount = this.props.amount
-            ? ZeroEx.toUnitAmount(this.props.amount, this.props.token.decimals)
+            ? Web3Wrapper.toUnitAmount(this.props.amount, this.props.token.decimals)
             : undefined;
         return (
             <div className="flex overflow-hidden" style={this._getStyle()}>
                 <BalanceBoundedInput
                     label={this.props.label}
                     amount={amount}
-                    balance={ZeroEx.toUnitAmount(this.state.balance, this.props.token.decimals)}
+                    balance={Web3Wrapper.toUnitAmount(this.state.balance, this.props.token.decimals)}
                     onChange={this._onChange.bind(this)}
                     onErrorMsgChange={this.props.onErrorMsgChange}
                     validate={this._validate.bind(this)}
@@ -103,7 +103,7 @@ export class TokenAmountInput extends React.Component<TokenAmountInputProps, Tok
     private _onChange(isValid: boolean, amount?: BigNumber): void {
         let baseUnitAmount;
         if (!_.isUndefined(amount)) {
-            baseUnitAmount = ZeroEx.toBaseUnitAmount(amount, this.props.token.decimals);
+            baseUnitAmount = Web3Wrapper.toBaseUnitAmount(amount, this.props.token.decimals);
         }
         this.props.onChange(isValid, baseUnitAmount);
     }
diff --git a/packages/website/ts/components/order_json.tsx b/packages/website/ts/components/order_json.tsx
index 6feefea50..35188c024 100644
--- a/packages/website/ts/components/order_json.tsx
+++ b/packages/website/ts/components/order_json.tsx
@@ -1,4 +1,4 @@
-import { ECSignature } from '0x.js';
+import { ECSignature } from '@0xproject/types';
 import { BigNumber, logUtils } from '@0xproject/utils';
 import * as _ from 'lodash';
 import Paper from 'material-ui/Paper';
diff --git a/packages/website/ts/components/token_balances.tsx b/packages/website/ts/components/token_balances.tsx
index 83948e5c2..f5a51dabb 100644
--- a/packages/website/ts/components/token_balances.tsx
+++ b/packages/website/ts/components/token_balances.tsx
@@ -1,4 +1,3 @@
-import { ZeroEx } from '0x.js';
 import {
     colors,
     constants as sharedConstants,
@@ -8,6 +7,7 @@ import {
     utils as sharedUtils,
 } from '@0xproject/react-shared';
 import { BigNumber, logUtils } from '@0xproject/utils';
+import { Web3Wrapper } from '@0xproject/web3-wrapper';
 import * as _ from 'lodash';
 import Dialog from 'material-ui/Dialog';
 import Divider from 'material-ui/Divider';
@@ -111,7 +111,7 @@ export class TokenBalances extends React.Component<TokenBalancesProps, TokenBala
         if (nextProps.userEtherBalanceInWei !== this.props.userEtherBalanceInWei) {
             if (this.state.isBalanceSpinnerVisible) {
                 const receivedAmountInWei = nextProps.userEtherBalanceInWei.minus(this.props.userEtherBalanceInWei);
-                const receivedAmountInEth = ZeroEx.toUnitAmount(receivedAmountInWei, constants.DECIMAL_PLACES_ETH);
+                const receivedAmountInEth = Web3Wrapper.toUnitAmount(receivedAmountInWei, constants.DECIMAL_PLACES_ETH);
                 const networkName = sharedConstants.NETWORK_NAME_BY_ID[this.props.networkId];
                 this.props.dispatcher.showFlashMessage(
                     `Received ${receivedAmountInEth.toString(10)} ${networkName} Ether`,
@@ -180,7 +180,7 @@ export class TokenBalances extends React.Component<TokenBalancesProps, TokenBala
                                   token balances in order to execute trades.<br> \
                                   Toggling sets an allowance for the<br> \
                                   smart contract so you can start trading that token.';
-        const userEtherBalanceInEth = ZeroEx.toUnitAmount(
+        const userEtherBalanceInEth = Web3Wrapper.toUnitAmount(
             this.props.userEtherBalanceInWei,
             constants.DECIMAL_PLACES_ETH,
         );
@@ -445,7 +445,7 @@ export class TokenBalances extends React.Component<TokenBalancesProps, TokenBala
         });
     }
     private _renderAmount(amount: BigNumber, decimals: number): React.ReactNode {
-        const unitAmount = ZeroEx.toUnitAmount(amount, decimals);
+        const unitAmount = Web3Wrapper.toUnitAmount(amount, decimals);
         return unitAmount.toNumber().toFixed(configs.AMOUNT_DISPLAY_PRECSION);
     }
     private _renderTokenName(token: Token): React.ReactNode {
@@ -508,7 +508,7 @@ export class TokenBalances extends React.Component<TokenBalancesProps, TokenBala
         try {
             await this.props.blockchain.mintTestTokensAsync(token);
             await this._refetchTokenStateAsync(token.address);
-            const amount = ZeroEx.toUnitAmount(constants.MINT_AMOUNT, token.decimals);
+            const amount = Web3Wrapper.toUnitAmount(constants.MINT_AMOUNT, token.decimals);
             this.props.dispatcher.showFlashMessage(`Successfully minted ${amount.toString(10)} ${token.symbol}`);
             return true;
         } catch (err) {
diff --git a/packages/website/ts/components/trade_history/trade_history_item.tsx b/packages/website/ts/components/trade_history/trade_history_item.tsx
index adca4d58c..321a8b0e1 100644
--- a/packages/website/ts/components/trade_history/trade_history_item.tsx
+++ b/packages/website/ts/components/trade_history/trade_history_item.tsx
@@ -1,6 +1,6 @@
-import { ZeroEx } from '0x.js';
 import { colors, EtherscanLinkSuffixes } from '@0xproject/react-shared';
 import { BigNumber } from '@0xproject/utils';
+import { Web3Wrapper } from '@0xproject/web3-wrapper';
 import * as _ from 'lodash';
 import Paper from 'material-ui/Paper';
 import * as moment from 'moment';
@@ -90,10 +90,16 @@ export class TradeHistoryItem extends React.Component<TradeHistoryItemProps, Tra
     }
     private _renderAmounts(makerToken: Token, takerToken: Token): React.ReactNode {
         const fill = this.props.fill;
-        const filledTakerTokenAmountInUnits = ZeroEx.toUnitAmount(fill.filledTakerTokenAmount, takerToken.decimals);
-        const filledMakerTokenAmountInUnits = ZeroEx.toUnitAmount(fill.filledMakerTokenAmount, takerToken.decimals);
+        const filledTakerTokenAmountInUnits = Web3Wrapper.toUnitAmount(
+            fill.filledTakerTokenAmount,
+            takerToken.decimals,
+        );
+        const filledMakerTokenAmountInUnits = Web3Wrapper.toUnitAmount(
+            fill.filledMakerTokenAmount,
+            takerToken.decimals,
+        );
         let exchangeRate = filledTakerTokenAmountInUnits.div(filledMakerTokenAmountInUnits);
-        const fillMakerTokenAmount = ZeroEx.toBaseUnitAmount(filledMakerTokenAmountInUnits, makerToken.decimals);
+        const fillMakerTokenAmount = Web3Wrapper.toBaseUnitAmount(filledMakerTokenAmountInUnits, makerToken.decimals);
 
         let receiveAmount;
         let receiveToken;
@@ -160,7 +166,7 @@ export class TradeHistoryItem extends React.Component<TradeHistoryItemProps, Tra
         );
     }
     private _renderAmount(amount: BigNumber, symbol: string, decimals: number): React.ReactNode {
-        const unitAmount = ZeroEx.toUnitAmount(amount, decimals);
+        const unitAmount = Web3Wrapper.toUnitAmount(amount, decimals);
         return (
             <span>
                 {unitAmount.toFixed(configs.AMOUNT_DISPLAY_PRECSION)} {symbol}
diff --git a/packages/website/ts/components/visual_order.tsx b/packages/website/ts/components/visual_order.tsx
index 76a283547..a8d18006e 100644
--- a/packages/website/ts/components/visual_order.tsx
+++ b/packages/website/ts/components/visual_order.tsx
@@ -1,4 +1,4 @@
-import { ZeroEx } from '0x.js';
+import { Web3Wrapper } from '@0xproject/web3-wrapper';
 import * as _ from 'lodash';
 import * as React from 'react';
 import { Party } from 'ts/components/ui/party';
@@ -63,7 +63,7 @@ export class VisualOrder extends React.Component<VisualOrderProps, VisualOrderSt
         );
     }
     private _renderAmount(assetToken: AssetToken, token: Token): React.ReactNode {
-        const unitAmount = ZeroEx.toUnitAmount(assetToken.amount, token.decimals);
+        const unitAmount = Web3Wrapper.toUnitAmount(assetToken.amount, token.decimals);
         return (
             <div style={{ fontSize: 13 }}>
                 {unitAmount.toNumber().toFixed(configs.AMOUNT_DISPLAY_PRECSION)} {token.symbol}
diff --git a/packages/website/ts/components/wallet/wallet.tsx b/packages/website/ts/components/wallet/wallet.tsx
index dab8b7d2f..afcf3862f 100644
--- a/packages/website/ts/components/wallet/wallet.tsx
+++ b/packages/website/ts/components/wallet/wallet.tsx
@@ -1,4 +1,3 @@
-import { ZeroEx } from '0x.js';
 import {
     constants as sharedConstants,
     EtherscanLinkSuffixes,
@@ -6,6 +5,7 @@ import {
     utils as sharedUtils,
 } from '@0xproject/react-shared';
 import { BigNumber } from '@0xproject/utils';
+import { Web3Wrapper } from '@0xproject/web3-wrapper';
 import * as _ from 'lodash';
 import FlatButton from 'material-ui/FlatButton';
 import FloatingActionButton from 'material-ui/FloatingActionButton';
@@ -473,7 +473,7 @@ export class Wallet extends React.Component<WalletProps, WalletState> {
         );
     }
     private _renderAmount(amount: BigNumber, decimals: number, symbol: string): React.ReactNode {
-        const unitAmount = ZeroEx.toUnitAmount(amount, decimals);
+        const unitAmount = Web3Wrapper.toUnitAmount(amount, decimals);
         const formattedAmount = unitAmount.toPrecision(TOKEN_AMOUNT_DISPLAY_PRECISION);
         const result = `${formattedAmount} ${symbol}`;
         return <div style={styles.amountLabel}>{result}</div>;
@@ -482,7 +482,7 @@ export class Wallet extends React.Component<WalletProps, WalletState> {
         if (_.isUndefined(price)) {
             return null;
         }
-        const unitAmount = ZeroEx.toUnitAmount(amount, decimals);
+        const unitAmount = Web3Wrapper.toUnitAmount(amount, decimals);
         const value = unitAmount.mul(price);
         const formattedAmount = value.toFixed(USD_DECIMAL_PLACES);
         const result = `$${formattedAmount}`;
diff --git a/packages/website/ts/components/wallet/wrap_ether_item.tsx b/packages/website/ts/components/wallet/wrap_ether_item.tsx
index 98b28b3ad..0a0a8a1fe 100644
--- a/packages/website/ts/components/wallet/wrap_ether_item.tsx
+++ b/packages/website/ts/components/wallet/wrap_ether_item.tsx
@@ -1,6 +1,6 @@
-import { ZeroEx } from '0x.js';
 import { Styles } from '@0xproject/react-shared';
 import { BigNumber, logUtils } from '@0xproject/utils';
+import { Web3Wrapper } from '@0xproject/web3-wrapper';
 import * as _ from 'lodash';
 import FlatButton from 'material-ui/FlatButton';
 import { ListItem } from 'material-ui/List';
@@ -82,7 +82,10 @@ export class WrapEtherItem extends React.Component<WrapEtherItemProps, WrapEther
         };
     }
     public render(): React.ReactNode {
-        const etherBalanceInEth = ZeroEx.toUnitAmount(this.props.userEtherBalanceInWei, constants.DECIMAL_PLACES_ETH);
+        const etherBalanceInEth = Web3Wrapper.toUnitAmount(
+            this.props.userEtherBalanceInWei,
+            constants.DECIMAL_PLACES_ETH,
+        );
         const isWrappingEth = this.props.direction === Side.Deposit;
         const topLabelText = isWrappingEth ? 'Convert ETH into WETH 1:1' : 'Convert WETH into ETH 1:1';
         return (
@@ -184,11 +187,11 @@ export class WrapEtherItem extends React.Component<WrapEtherItemProps, WrapEther
             const amountToConvert = this.state.currentInputAmount;
             if (this.props.direction === Side.Deposit) {
                 await this.props.blockchain.convertEthToWrappedEthTokensAsync(etherToken.address, amountToConvert);
-                const ethAmount = ZeroEx.toUnitAmount(amountToConvert, constants.DECIMAL_PLACES_ETH);
+                const ethAmount = Web3Wrapper.toUnitAmount(amountToConvert, constants.DECIMAL_PLACES_ETH);
                 this.props.dispatcher.showFlashMessage(`Successfully wrapped ${ethAmount.toString()} ETH to WETH`);
             } else {
                 await this.props.blockchain.convertWrappedEthTokensToEthAsync(etherToken.address, amountToConvert);
-                const tokenAmount = ZeroEx.toUnitAmount(amountToConvert, etherToken.decimals);
+                const tokenAmount = Web3Wrapper.toUnitAmount(amountToConvert, etherToken.decimals);
                 this.props.dispatcher.showFlashMessage(`Successfully unwrapped ${tokenAmount.toString()} WETH to ETH`);
             }
             await this.props.refetchEthTokenStateAsync();
diff --git a/packages/website/ts/containers/generate_order_form.ts b/packages/website/ts/containers/generate_order_form.ts
index 8c5deb690..98c9b8cd6 100644
--- a/packages/website/ts/containers/generate_order_form.ts
+++ b/packages/website/ts/containers/generate_order_form.ts
@@ -1,4 +1,4 @@
-import { ECSignature } from '0x.js';
+import { ECSignature } from '@0xproject/types';
 import { BigNumber } from '@0xproject/utils';
 import * as _ from 'lodash';
 import * as React from 'react';
diff --git a/packages/website/ts/redux/dispatcher.ts b/packages/website/ts/redux/dispatcher.ts
index 981522360..340b80d49 100644
--- a/packages/website/ts/redux/dispatcher.ts
+++ b/packages/website/ts/redux/dispatcher.ts
@@ -1,4 +1,4 @@
-import { ECSignature } from '0x.js';
+import { ECSignature } from '@0xproject/types';
 import { BigNumber } from '@0xproject/utils';
 import { Dispatch } from 'redux';
 import { State } from 'ts/redux/reducer';
diff --git a/packages/website/ts/redux/reducer.ts b/packages/website/ts/redux/reducer.ts
index bb8f1472b..fba6afa5d 100644
--- a/packages/website/ts/redux/reducer.ts
+++ b/packages/website/ts/redux/reducer.ts
@@ -1,4 +1,5 @@
-import { ECSignature, ZeroEx } from '0x.js';
+import { constants, generatePseudoRandomSalt } from '@0xproject/order-utils';
+import { ECSignature } from '@0xproject/types';
 import { BigNumber } from '@0xproject/utils';
 import * as _ from 'lodash';
 import * as moment from 'moment';
@@ -65,8 +66,8 @@ const INITIAL_STATE: State = {
         s: '',
         v: 27,
     },
-    orderTakerAddress: ZeroEx.NULL_ADDRESS,
-    orderSalt: ZeroEx.generatePseudoRandomSalt(),
+    orderTakerAddress: constants.NULL_ADDRESS,
+    orderSalt: generatePseudoRandomSalt(),
     nodeVersion: undefined,
     screenWidth: utils.getScreenWidth(),
     shouldBlockchainErrDialogBeOpen: false,
diff --git a/packages/website/ts/types.ts b/packages/website/ts/types.ts
index 33e4d6c30..294a58f64 100644
--- a/packages/website/ts/types.ts
+++ b/packages/website/ts/types.ts
@@ -1,4 +1,4 @@
-import { ECSignature } from '0x.js';
+import { ECSignature } from '@0xproject/types';
 import { BigNumber } from '@0xproject/utils';
 import * as _ from 'lodash';
 
diff --git a/packages/website/ts/utils/utils.ts b/packages/website/ts/utils/utils.ts
index c370ac90c..e79a873e0 100644
--- a/packages/website/ts/utils/utils.ts
+++ b/packages/website/ts/utils/utils.ts
@@ -1,7 +1,7 @@
-import { ContractWrappersError, ECSignature, ExchangeContractErrs, ZeroEx } from '0x.js';
+import { ContractWrappersError, ExchangeContractErrs } from '@0xproject/contract-wrappers';
 import { OrderError } from '@0xproject/order-utils';
 import { constants as sharedConstants, EtherscanLinkSuffixes, Networks } from '@0xproject/react-shared';
-import { Provider } from '@0xproject/types';
+import { ECSignature, Provider } from '@0xproject/types';
 import { BigNumber } from '@0xproject/utils';
 import deepEqual = require('deep-equal');
 import * as _ from 'lodash';