Refactor 0x.js to V2

14 files changed, 160 insertions, 145 deletions

diff --git a/package.json b/package.json
index 1ef8a24b5..6dc8542fd 100644
--- a/package.json
+++ b/package.json
@@ -31,7 +31,7 @@
         "stage_docs": "wsrun docs:stage $PKG --fast-exit --parallel --exclude-missing",
         "lint": "wsrun lint $PKG --fast-exit --parallel --exclude-missing",
         "comment:postinstall": "HACK: For some reason `yarn` is not setting up symlinks properly for order-utils. We temporarily set them manually. Remove this after V2 refactor is complete.",
-        "postinstall": "rm -rf `pwd`/packages/order-utils/node_modules/@0xproject; mkdir `pwd`/packages/order-utils/node_modules/@0xproject; ln -s `pwd`/packages/json-schemas `pwd`/packages/order-utils/node_modules/@0xproject/json-schemas; ln -s `pwd`/packages/assert `pwd`/packages/order-utils/node_modules/@0xproject/assert; ln -s `pwd`/packages/types `pwd`/packages/order-utils/node_modules/@0xproject/types; rm -f `pwd`/packages/contracts/node_modules/@0xproject/types; ln -s `pwd`/packages/types `pwd`/packages/contracts/node_modules/@0xproject/types; rm -rf `pwd`/packages/fill-scenarios/node_modules/@0xproject; mkdir -p `pwd`/packages/fill-scenarios/node_modules/@0xproject; ln -s `pwd`/packages/types `pwd`/packages/fill-scenarios/node_modules/@0xproject/types; ln -s `pwd`/packages/json-schemas `pwd`/packages/fill-scenarios/node_modules/@0xproject/json-schemas; ln -s `pwd`/packages/order-utils `pwd`/packages/fill-scenarios/node_modules/@0xproject/order-utils; rm -rf `pwd`/packages/contract-wrappers/node_modules/@0xproject; mkdir -p `pwd`/packages/contract-wrappers/node_modules/@0xproject; ln -s `pwd`/packages/order-utils `pwd`/packages/contract-wrappers/node_modules/@0xproject/order-utils; ln -s `pwd`/packages/assert `pwd`/packages/contract-wrappers/node_modules/@0xproject/assert; ln -s `pwd`/packages/json-schemas `pwd`/packages/contract-wrappers/node_modules/@0xproject/json-schemas; ln -s `pwd`/packages/types `pwd`/packages/contract-wrappers/node_modules/@0xproject/types; ln -s `pwd`/packages/fill-scenarios `pwd`/packages/contract-wrappers/node_modules/@0xproject/fill-scenarios; rm -rf `pwd`/packages/assert/node_modules/@0xproject; mkdir -p `pwd`/packages/assert/node_modules/@0xproject; ln -s `pwd`/packages/json-schemas `pwd`/packages/assert/node_modules/@0xproject/json-schemas"
+        "postinstall": "rm -rf `pwd`/packages/0x.js/node_modules/@0xproject; mkdir `pwd`/packages/0x.js/node_modules/@0xproject; ln -s `pwd`/packages/contract-wrappers `pwd`/packages/0x.js/node_modules/@0xproject/contract-wrappers; ln -s `pwd`/packages/order-utils `pwd`/packages/0x.js/node_modules/@0xproject/order-utils; ln -s `pwd`/packages/types `pwd`/packages/0x.js/node_modules/@0xproject/types; rm -rf `pwd`/packages/order-utils/node_modules/@0xproject; mkdir `pwd`/packages/order-utils/node_modules/@0xproject; ln -s `pwd`/packages/json-schemas `pwd`/packages/order-utils/node_modules/@0xproject/json-schemas; ln -s `pwd`/packages/assert `pwd`/packages/order-utils/node_modules/@0xproject/assert; ln -s `pwd`/packages/types `pwd`/packages/order-utils/node_modules/@0xproject/types; rm -f `pwd`/packages/contracts/node_modules/@0xproject/types; ln -s `pwd`/packages/types `pwd`/packages/contracts/node_modules/@0xproject/types; rm -rf `pwd`/packages/fill-scenarios/node_modules/@0xproject; mkdir -p `pwd`/packages/fill-scenarios/node_modules/@0xproject; ln -s `pwd`/packages/types `pwd`/packages/fill-scenarios/node_modules/@0xproject/types; ln -s `pwd`/packages/json-schemas `pwd`/packages/fill-scenarios/node_modules/@0xproject/json-schemas; ln -s `pwd`/packages/order-utils `pwd`/packages/fill-scenarios/node_modules/@0xproject/order-utils; rm -rf `pwd`/packages/contract-wrappers/node_modules/@0xproject; mkdir -p `pwd`/packages/contract-wrappers/node_modules/@0xproject; ln -s `pwd`/packages/order-utils `pwd`/packages/contract-wrappers/node_modules/@0xproject/order-utils; ln -s `pwd`/packages/assert `pwd`/packages/contract-wrappers/node_modules/@0xproject/assert; ln -s `pwd`/packages/json-schemas `pwd`/packages/contract-wrappers/node_modules/@0xproject/json-schemas; ln -s `pwd`/packages/types `pwd`/packages/contract-wrappers/node_modules/@0xproject/types; ln -s `pwd`/packages/fill-scenarios `pwd`/packages/contract-wrappers/node_modules/@0xproject/fill-scenarios; rm -rf `pwd`/packages/assert/node_modules/@0xproject; mkdir -p `pwd`/packages/assert/node_modules/@0xproject; ln -s `pwd`/packages/json-schemas `pwd`/packages/assert/node_modules/@0xproject/json-schemas"
     },
     "config": {
         "mnemonic": "concert load couple harbor equip island argue ramp clarify fence smart topic"
diff --git a/packages/0x.js/package.json b/packages/0x.js/package.json
index 3e6e03182..d77f31a69 100644
--- a/packages/0x.js/package.json
+++ b/packages/0x.js/package.json
@@ -18,9 +18,10 @@
         "watch_without_deps": "yarn pre_build && tsc -w",
         "build": "yarn pre_build && yarn build:all && copyfiles -u 3 './lib/src/monorepo_scripts/**/*' ./scripts",
         "build:all": "run-p build:umd:prod build:commonjs; exit 0;",
-        "pre_build": "run-s generate_contract_wrappers copy_artifacts",
-        "copy_artifacts": "copyfiles -u 2 './src/compact_artifacts/**/*.json' ./lib/src/compact_artifacts",
-        "generate_contract_wrappers": "abi-gen --abis 'src/compact_artifacts/@(Exchange|Token|TokenTransferProxy|EtherToken|TokenRegistry|DummyToken).json' --template ../contract_templates/contract.handlebars --partials '../contract_templates/partials/**/*.handlebars' --output src/generated_contract_wrappers --backend ethers",
+        "pre_build": "run-s update_artifacts generate_contract_wrappers",
+        "copy_artifacts": "copyfiles -u 2 './src/artifacts/**/*.json' ./lib/src/artifacts",
+        "update_artifacts": "for i in ${npm_package_config_contracts}; do copyfiles -u 4 ../migrations/artifacts/2.0.0/$i.json src/artifacts; done;",
+        "generate_contract_wrappers": "abi-gen --abis 'src/artifacts/@(ZRXToken).json' --template ../contract_templates/contract.handlebars --partials '../contract_templates/partials/**/*.handlebars' --output src/generated_contract_wrappers --backend ethers",
         "lint": "tslint --project . --exclude **/src/generated_contract_wrappers/**/*",
         "test:circleci": "run-s test:coverage",
         "test": "yarn run_mocha",
@@ -29,7 +30,7 @@
         "coverage:report:lcov": "nyc report --reporter=text-lcov > coverage/lcov.info",
         "clean": "shx rm -rf _bundles lib test_temp scripts src/generated_contract_wrappers",
         "build:umd:prod": "NODE_ENV=production webpack",
-        "build:commonjs": "tsc && copyfiles -u 2 './src/compact_artifacts/**/*.json' ./lib/src/compact_artifacts && copyfiles -u 3 './lib/src/monorepo_scripts/**/*' ./scripts",
+        "build:commonjs": "tsc && yarn copy_artifacts && copyfiles -u 3 './lib/src/monorepo_scripts/**/*' ./scripts",
         "run_mocha": "mocha --require source-map-support/register --require make-promises-safe lib/test/**/*_test.js lib/test/global_hooks.js --timeout 10000 --bail --exit",
         "manual:postpublish": "yarn build; node ./scripts/postpublish.js",
         "docs:stage": "node scripts/stage_docs.js",
@@ -37,7 +38,7 @@
         "upload_docs_json": "aws s3 cp generated_docs/index.json $S3_URL --profile 0xproject --grants read=uri=http://acs.amazonaws.com/groups/global/AllUsers --content-type application/json"
     },
     "config": {
-        "compact_artifacts": "Exchange DummyToken ZRXToken Token EtherToken TokenTransferProxy TokenRegistry",
+        "contracts": "ZRXToken",
         "postpublish": {
             "assets": [
                 "packages/0x.js/_bundles/index.js",
@@ -101,13 +102,14 @@
     "dependencies": {
         "@0xproject/assert": "^0.2.13",
         "@0xproject/base-contract": "^0.3.5",
-        "@0xproject/contract-wrappers": "^0.0.5",
-        "@0xproject/order-utils": "^0.0.8",
+        "@0xproject/contract-wrappers": "^0.1.0",
+        "@0xproject/order-utils": "^1.0.0",
         "@0xproject/sol-compiler": "^0.5.3",
-        "@0xproject/types": "^0.8.2",
+        "@0xproject/types": "^1.0.0",
         "@0xproject/typescript-typings": "^0.4.2",
         "@0xproject/utils": "^0.7.2",
         "@0xproject/web3-wrapper": "^0.7.2",
+        "ethereum-types": "^0.0.2",
         "ethers": "3.0.22",
         "lodash": "^4.17.4"
     },
diff --git a/packages/0x.js/src/0x.ts b/packages/0x.js/src/0x.ts
index c6315ac7a..597bc07a5 100644
--- a/packages/0x.js/src/0x.ts
+++ b/packages/0x.js/src/0x.ts
@@ -4,19 +4,22 @@ import {
     ContractWrappersConfig,
     ERC20ProxyWrapper,
     ERC20TokenWrapper,
+    ERC721ProxyWrapper,
+    ERC721TokenWrapper,
     EtherTokenWrapper,
     ExchangeWrapper,
 } from '@0xproject/contract-wrappers';
 import {
+    ecSignOrderHashAsync,
     generatePseudoRandomSalt,
-    getOrderHashHex,
-    isValidOrderHash,
-    isValidSignature,
-    signOrderHashAsync,
+    isValidSignatureAsync,
+    MessagePrefixOpts,
+    orderHashUtils,
 } from '@0xproject/order-utils';
-import { ECSignature, Order, Provider, SignedOrder, TransactionReceiptWithDecodedLogs } from '@0xproject/types';
+import { ECSignature, Order, SignedOrder } from '@0xproject/types';
 import { BigNumber } from '@0xproject/utils';
 import { Web3Wrapper } from '@0xproject/web3-wrapper';
+import { Provider, TransactionReceiptWithDecodedLogs } from 'ethereum-types';
 
 import { constants } from './utils/constants';
 
@@ -36,21 +39,28 @@ export class ZeroEx {
      */
     public exchange: ExchangeWrapper;
     /**
+     * An instance of the ERC20TokenWrapper class containing methods for interacting with any ERC20 token smart contract.
      */
+    public erc20Token: ERC20TokenWrapper;
     /**
-     * An instance of the TokenWrapper class containing methods for interacting with any ERC20 token smart contract.
+     * An instance of the ERC721TokenWrapper class containing methods for interacting with any ERC721 token smart contract.
      */
-    public token: TokenWrapper;
+    public erc721Token: ERC721TokenWrapper;
     /**
      * An instance of the EtherTokenWrapper class containing methods for interacting with the
      * wrapped ETH ERC20 token smart contract.
      */
     public etherToken: EtherTokenWrapper;
     /**
-     * An instance of the TokenTransferProxyWrapper class containing methods for interacting with the
-     * tokenTransferProxy smart contract.
+     * An instance of the ERC20ProxyWrapper class containing methods for interacting with the
+     * ERC20 proxy smart contract.
      */
-    public proxy: TokenTransferProxyWrapper;
+    public erc20Proxy: ERC20ProxyWrapper;
+    /**
+     * An instance of the ERC721ProxyWrapper class containing methods for interacting with the
+     * ERC721 proxy smart contract.
+     */
+    public erc721Proxy: ERC721ProxyWrapper;
     private _contractWrappers: ContractWrappers;
     /**
      * Generates a pseudo-random 256-bit salt.
@@ -62,23 +72,12 @@ export class ZeroEx {
         return generatePseudoRandomSalt();
     }
     /**
-     * Verifies that the elliptic curve signature `signature` was generated
-     * by signing `data` with the private key corresponding to the `signerAddress` address.
-     * @param   data          The hex encoded data signed by the supplied signature.
-     * @param   signature     An object containing the elliptic curve signature parameters.
-     * @param   signerAddress The hex encoded address that signed the data, producing the supplied signature.
-     * @return  Whether the signature is valid for the supplied signerAddress and data.
-     */
-    public static isValidSignature(data: string, signature: ECSignature, signerAddress: string): boolean {
-        return isValidSignature(data, signature, signerAddress);
-    }
-    /**
      * Computes the orderHash for a supplied order.
      * @param   order   An object that conforms to the Order or SignedOrder interface definitions.
      * @return  The resulting orderHash from hashing the supplied order.
      */
     public static getOrderHashHex(order: Order | SignedOrder): string {
-        return getOrderHashHex(order);
+        return orderHashUtils.getOrderHashHex(order);
     }
     /**
      * Checks if the supplied hex encoded order hash is valid.
@@ -88,7 +87,7 @@ export class ZeroEx {
      * @return  Whether the supplied orderHash has the expected format.
      */
     public static isValidOrderHash(orderHash: string): boolean {
-        return isValidOrderHash(orderHash);
+        return orderHashUtils.isValidOrderHash(orderHash);
     }
     /**
      * A unit amount is defined as the amount of a token above the specified decimal places (integer part).
@@ -129,12 +128,31 @@ export class ZeroEx {
         assert.isWeb3Provider('provider', provider);
         this._contractWrappers = new ContractWrappers(provider, config);
 
-        this.proxy = this._contractWrappers.proxy;
-        this.token = this._contractWrappers.token;
+        this.erc20Proxy = this._contractWrappers.erc20Proxy;
+        this.erc721Proxy = this._contractWrappers.erc721Proxy;
+        this.erc20Token = this._contractWrappers.erc20Token;
+        this.erc721Token = this._contractWrappers.erc721Token;
         this.exchange = this._contractWrappers.exchange;
         this.etherToken = this._contractWrappers.etherToken;
     }
     /**
+     * Verifies that the provided signature is valid according to the 0x Protocol smart contracts
+     * @param   provider      The Web3Provider to use. Some signature types involve checking contract state.
+     * @param   data          The hex encoded data signed by the supplied signature.
+     * @param   signature     The hex encoded signature.
+     * @param   signerAddress The hex encoded address that signed the data, producing the supplied signature.
+     * @return  Whether the signature is valid for the supplied signerAddress and data.
+     */
+    public async isValidSignatureAsync(data: string, signature: string, signerAddress: string): Promise<boolean> {
+        const isValid = await isValidSignatureAsync(
+            this._contractWrappers.getProvider(),
+            data,
+            signature,
+            signerAddress,
+        );
+        return isValid;
+    }
+    /**
      * Sets a new web3 provider for 0x.js. Updating the provider will stop all
      * subscriptions so you will need to re-subscribe to all events relevant to your app after this call.
      * @param   provider    The Web3Provider you would like the 0x.js library to use from now on.
@@ -166,23 +184,21 @@ export class ZeroEx {
      * @param   orderHash       Hex encoded orderHash to sign.
      * @param   signerAddress   The hex encoded Ethereum address you wish to sign it with. This address
      *          must be available via the Provider supplied to 0x.js.
-     * @param   shouldAddPersonalMessagePrefix  Some signers add the personal message prefix `\x19Ethereum Signed Message`
-     *          themselves (e.g Parity Signer, Ledger, TestRPC) and others expect it to already be done by the client
-     *          (e.g Metamask). Depending on which signer this request is going to, decide on whether to add the prefix
-     *          before sending the request.
+     * @param   MessagePrefixOpts  Options regarding the desired prefix and whether to add it before calling `eth_sign`
      * @return  An object containing the Elliptic curve signature parameters generated by signing the orderHash.
      */
-    public async signOrderHashAsync(
+    public async ecSignOrderHashAsync(
         orderHash: string,
         signerAddress: string,
-        shouldAddPersonalMessagePrefix: boolean,
+        messagePrefixOpts: MessagePrefixOpts,
     ): Promise<ECSignature> {
-        return signOrderHashAsync(
+        const signature = await ecSignOrderHashAsync(
             this._contractWrappers.getProvider(),
             orderHash,
             signerAddress,
-            shouldAddPersonalMessagePrefix,
+            messagePrefixOpts,
         );
+        return signature;
     }
     /**
      * Waits for a transaction to be mined and returns the transaction receipt.
diff --git a/packages/0x.js/src/artifacts.ts b/packages/0x.js/src/artifacts.ts
new file mode 100644
index 000000000..f68969d28
--- /dev/null
+++ b/packages/0x.js/src/artifacts.ts
@@ -0,0 +1,7 @@
+import { ContractArtifact } from '@0xproject/sol-compiler';
+
+import * as ZRXToken from './artifacts/ZRXToken.json';
+
+export const artifacts = {
+    ZRXToken: (ZRXToken as any) as ContractArtifact,
+};
diff --git a/packages/0x.js/src/index.ts b/packages/0x.js/src/index.ts
index c79dbdb77..6dfc0bacc 100644
--- a/packages/0x.js/src/index.ts
+++ b/packages/0x.js/src/index.ts
@@ -1,30 +1,34 @@
 export { ZeroEx } from './0x';
 
+export { MessagePrefixType, MessagePrefixOpts } from '@0xproject/order-utils';
+
 export {
-    BlockParamLiteral,
-    FilterObject,
-    BlockParam,
-    ContractEventArg,
     ExchangeContractErrs,
-    LogWithDecodedArgs,
     Order,
-    Provider,
     SignedOrder,
     ECSignature,
     OrderStateValid,
     OrderStateInvalid,
     OrderState,
     Token,
+} from '@0xproject/types';
+
+export {
+    BlockParamLiteral,
+    FilterObject,
+    BlockParam,
+    LogWithDecodedArgs,
+    ContractEventArg,
+    Provider,
     TransactionReceipt,
     TransactionReceiptWithDecodedLogs,
-} from '@0xproject/types';
+} from 'ethereum-types';
 
 export {
     EventCallback,
     ContractEvent,
     IndexedFilterValues,
     BlockRange,
-    OrderCancellationRequest,
     OrderFillRequest,
     ContractEventArgs,
     MethodOpts,
@@ -34,18 +38,24 @@ export {
     DecodedLogEvent,
     OnOrderStateChangeCallback,
     ContractWrappersError,
-    EtherTokenContractEventArgs,
-    WithdrawalContractEventArgs,
-    DepositContractEventArgs,
-    EtherTokenEvents,
-    TransferContractEventArgs,
-    ApprovalContractEventArgs,
-    TokenContractEventArgs,
-    TokenEvents,
-    LogErrorContractEventArgs,
-    LogCancelContractEventArgs,
-    LogFillContractEventArgs,
-    ExchangeContractEventArgs,
-    ExchangeEvents,
+    WETH9Events,
+    WETH9WithdrawalEventArgs,
+    WETH9ApprovalEventArgs,
+    WETH9EventArgs,
+    WETH9DepositEventArgs,
+    WETH9TransferEventArgs,
+    ERC20TokenTransferEventArgs,
+    ERC20TokenApprovalEventArgs,
+    ERC20TokenEvents,
+    ERC20TokenEventArgs,
+    ERC721TokenApprovalEventArgs,
+    ERC721TokenApprovalForAllEventArgs,
+    ERC721TokenTransferEventArgs,
+    ERC721TokenEvents,
+    ExchangeCancelUpToEventArgs,
+    ExchangeAssetProxyRegisteredEventArgs,
+    ExchangeFillEventArgs,
+    ExchangeCancelEventArgs,
+    ExchangeEventArgs,
     ContractWrappersConfig,
 } from '@0xproject/contract-wrappers';
diff --git a/packages/0x.js/src/schemas/zero_ex_private_network_config_schema.ts b/packages/0x.js/src/schemas/zero_ex_private_network_config_schema.ts
index 6036b2695..378b86e77 100644
--- a/packages/0x.js/src/schemas/zero_ex_private_network_config_schema.ts
+++ b/packages/0x.js/src/schemas/zero_ex_private_network_config_schema.ts
@@ -8,7 +8,8 @@ export const zeroExPrivateNetworkConfigSchema = {
         gasPrice: { $ref: '/Number' },
         zrxContractAddress: { $ref: '/Address' },
         exchangeContractAddress: { $ref: '/Address' },
-        tokenTransferProxyContractAddress: { $ref: '/Address' },
+        erc20ProxyContractAddress: { $ref: '/Address' },
+        erc721ProxyContractAddress: { $ref: '/Address' },
         orderWatcherConfig: {
             type: 'object',
             properties: {
@@ -28,6 +29,7 @@ export const zeroExPrivateNetworkConfigSchema = {
         'networkId',
         'zrxContractAddress',
         'exchangeContractAddress',
-        'tokenTransferProxyContractAddress',
+        'erc20ProxyContractAddress',
+        'erc721ProxyContractAddress',
     ],
 };
diff --git a/packages/0x.js/src/schemas/zero_ex_public_network_config_schema.ts b/packages/0x.js/src/schemas/zero_ex_public_network_config_schema.ts
index 7bedb7438..f2a9a4d56 100644
--- a/packages/0x.js/src/schemas/zero_ex_public_network_config_schema.ts
+++ b/packages/0x.js/src/schemas/zero_ex_public_network_config_schema.ts
@@ -22,7 +22,8 @@ export const zeroExPublicNetworkConfigSchema = {
         gasPrice: { $ref: '/Number' },
         zrxContractAddress: { $ref: '/Address' },
         exchangeContractAddress: { $ref: '/Address' },
-        tokenTransferProxyContractAddress: { $ref: '/Address' },
+        erc20ProxyContractAddress: { $ref: '/Address' },
+        erc721ProxyContractAddress: { $ref: '/Address' },
         orderWatcherConfig: {
             type: 'object',
             properties: {
diff --git a/packages/0x.js/test/0x.js_test.ts b/packages/0x.js/test/0x.js_test.ts
index 815f94de1..722049955 100644
--- a/packages/0x.js/test/0x.js_test.ts
+++ b/packages/0x.js/test/0x.js_test.ts
@@ -5,11 +5,11 @@ import * as chai from 'chai';
 import * as _ from 'lodash';
 import 'mocha';
 
-import { ApprovalContractEventArgs, LogWithDecodedArgs, TokenEvents, ZeroEx } from '../src';
+import { ERC20TokenApprovalEventArgs, ERC20TokenEvents, LogWithDecodedArgs, ZeroEx } from '../src';
 
 import { chaiSetup } from './utils/chai_setup';
 import { constants } from './utils/constants';
-import { TokenUtils } from './utils/token_utils';
+import { tokenUtils } from './utils/token_utils';
 import { provider, web3Wrapper } from './utils/web3_wrapper';
 
 const blockchainLifecycle = new BlockchainLifecycle(web3Wrapper);
@@ -45,40 +45,34 @@ describe('ZeroEx library', () => {
         });
     });
     describe('#isValidSignature', () => {
-        // The Exchange smart contract `isValidSignature` method only validates orderHashes and assumes
-        // the length of the data is exactly 32 bytes. Thus for these tests, we use data of this size.
         const dataHex = '0x6927e990021d23b1eb7b8789f6a6feaf98fe104bb0cf8259421b79f9a34222b0';
-        const signature = {
-            v: 27,
-            r: '0x61a3ed31b43c8780e905a260a35faefcc527be7516aa11c0256729b5b351bc33',
-            s: '0x40349190569279751135161d22529dc25add4f6069af05be04cacbda2ace2254',
-        };
+        const ethSignSignature =
+            '0x1B61a3ed31b43c8780e905a260a35faefcc527be7516aa11c0256729b5b351bc3340349190569279751135161d22529dc25add4f6069af05be04cacbda2ace225403';
         const address = '0x5409ed021d9299bf6814279a6a1411a7e866a631';
         it("should return false if the data doesn't pertain to the signature & address", async () => {
-            return expect(
-                (zeroEx.exchange as any)._isValidSignatureUsingContractCallAsync('0x0', signature, address),
-            ).to.become(false);
+            return expect((zeroEx.exchange as any).isValidSignatureAsync('0x0', address, ethSignSignature)).to.become(
+                false,
+            );
         });
         it("should return false if the address doesn't pertain to the signature & data", async () => {
             const validUnrelatedAddress = '0x8b0292b11a196601ed2ce54b665cafeca0347d42';
             return expect(
-                (zeroEx.exchange as any)._isValidSignatureUsingContractCallAsync(
-                    dataHex,
-                    signature,
-                    validUnrelatedAddress,
-                ),
+                (zeroEx.exchange as any).isValidSignatureAsync(dataHex, validUnrelatedAddress, ethSignSignature),
             ).to.become(false);
         });
         it("should return false if the signature doesn't pertain to the dataHex & address", async () => {
-            const wrongSignature = _.assign({}, signature, { v: 28 });
-            return expect(
-                (zeroEx.exchange as any)._isValidSignatureUsingContractCallAsync(dataHex, wrongSignature, address),
-            ).to.become(false);
+            const signatureArray = ethSignSignature.split('');
+            // tslint:disable-next-line:custom-no-magic-numbers
+            signatureArray[5] = 'C'; // V = 28, instead of 27
+            const wrongSignature = signatureArray.join('');
+            return expect((zeroEx.exchange as any).isValidSignatureAsync(dataHex, address, wrongSignature)).to.become(
+                false,
+            );
         });
         it('should return true if the signature does pertain to the dataHex & address', async () => {
-            return expect(
-                (zeroEx.exchange as any)._isValidSignatureUsingContractCallAsync(dataHex, signature, address),
-            ).to.become(true);
+            return expect((zeroEx.exchange as any).isValidSignatureAsync(dataHex, address, ethSignSignature)).to.become(
+                true,
+            );
         });
     });
     describe('#toUnitAmount', () => {
@@ -123,18 +117,16 @@ describe('ZeroEx library', () => {
         it('returns transaction receipt with decoded logs', async () => {
             const availableAddresses = await zeroEx.getAvailableAddressesAsync();
             const coinbase = availableAddresses[0];
-            const tokens = await zeroEx.tokenRegistry.getTokensAsync();
-            const tokenUtils = new TokenUtils(tokens);
-            const zrxTokenAddress = tokenUtils.getProtocolTokenOrThrow().address;
-            const proxyAddress = zeroEx.proxy.getContractAddress();
-            const txHash = await zeroEx.token.setUnlimitedProxyAllowanceAsync(zrxTokenAddress, coinbase);
+            const zrxTokenAddress = tokenUtils.getProtocolTokenAddress();
+            const erc20ProxyAddress = zeroEx.erc20Proxy.getContractAddress();
+            const txHash = await zeroEx.erc20Token.setUnlimitedProxyAllowanceAsync(zrxTokenAddress, coinbase);
             const txReceiptWithDecodedLogs = await zeroEx.awaitTransactionMinedAsync(txHash);
             // tslint:disable-next-line:no-unnecessary-type-assertion
-            const log = txReceiptWithDecodedLogs.logs[0] as LogWithDecodedArgs<ApprovalContractEventArgs>;
-            expect(log.event).to.be.equal(TokenEvents.Approval);
+            const log = txReceiptWithDecodedLogs.logs[0] as LogWithDecodedArgs<ERC20TokenApprovalEventArgs>;
+            expect(log.event).to.be.equal(ERC20TokenEvents.Approval);
             expect(log.args._owner).to.be.equal(coinbase);
-            expect(log.args._spender).to.be.equal(proxyAddress);
-            expect(log.args._value).to.be.bignumber.equal(zeroEx.token.UNLIMITED_ALLOWANCE_IN_BASE_UNITS);
+            expect(log.args._spender).to.be.equal(erc20ProxyAddress);
+            expect(log.args._value).to.be.bignumber.equal(zeroEx.erc20Token.UNLIMITED_ALLOWANCE_IN_BASE_UNITS);
         });
     });
     describe('#config', () => {
@@ -146,15 +138,13 @@ describe('ZeroEx library', () => {
             const zeroExWithWrongExchangeAddress = new ZeroEx(provider, zeroExConfig);
             expect(zeroExWithWrongExchangeAddress.exchange.getContractAddress()).to.be.equal(ZeroEx.NULL_ADDRESS);
         });
-        it('allows to specify token registry token contract address', async () => {
+        it('allows to specify erc20Proxy contract address', async () => {
             const zeroExConfig = {
-                tokenRegistryContractAddress: ZeroEx.NULL_ADDRESS,
+                erc20ProxyContractAddress: ZeroEx.NULL_ADDRESS,
                 networkId: constants.TESTRPC_NETWORK_ID,
             };
-            const zeroExWithWrongTokenRegistryAddress = new ZeroEx(provider, zeroExConfig);
-            expect(zeroExWithWrongTokenRegistryAddress.tokenRegistry.getContractAddress()).to.be.equal(
-                ZeroEx.NULL_ADDRESS,
-            );
+            const zeroExWithWrongERC20ProxyAddress = new ZeroEx(provider, zeroExConfig);
+            expect(zeroExWithWrongERC20ProxyAddress.erc20Proxy.getContractAddress()).to.be.equal(ZeroEx.NULL_ADDRESS);
         });
     });
 });
diff --git a/packages/0x.js/test/global_hooks.ts b/packages/0x.js/test/global_hooks.ts
index 9d6903af5..3d74634fe 100644
--- a/packages/0x.js/test/global_hooks.ts
+++ b/packages/0x.js/test/global_hooks.ts
@@ -1,5 +1,5 @@
 import { devConstants } from '@0xproject/dev-utils';
-import { runV1MigrationsAsync } from '@0xproject/migrations';
+import { runV2MigrationsAsync } from '@0xproject/migrations';
 
 import { provider } from './utils/web3_wrapper';
 
@@ -12,6 +12,6 @@ before('migrate contracts', async function(): Promise<void> {
         gas: devConstants.GAS_LIMIT,
         from: devConstants.TESTRPC_FIRST_ADDRESS,
     };
-    const artifactsDir = `../migrations/artifacts/1.0.0`;
-    await runV1MigrationsAsync(provider, artifactsDir, txDefaults);
+    const artifactsDir = `../migrations/artifacts/2.0.0`;
+    await runV2MigrationsAsync(provider, artifactsDir, txDefaults);
 });
diff --git a/packages/0x.js/test/utils/token_utils.ts b/packages/0x.js/test/utils/token_utils.ts
index fe4886ba4..76ee80b58 100644
--- a/packages/0x.js/test/utils/token_utils.ts
+++ b/packages/0x.js/test/utils/token_utils.ts
@@ -1,34 +1,12 @@
-import { Token } from '@0xproject/types';
-import * as _ from 'lodash';
+import { generatePseudoRandomSalt } from '@0xproject/order-utils';
+import { BigNumber } from '@0xproject/utils';
 
-import { InternalZeroExError } from '../../src/types';
+import { artifacts } from '../../src/artifacts';
 
-const PROTOCOL_TOKEN_SYMBOL = 'ZRX';
-const WETH_TOKEN_SYMBOL = 'WETH';
+import { constants } from './constants';
 
-export class TokenUtils {
-    private _tokens: Token[];
-    constructor(tokens: Token[]) {
-        this._tokens = tokens;
-    }
-    public getProtocolTokenOrThrow(): Token {
-        const zrxToken = _.find(this._tokens, { symbol: PROTOCOL_TOKEN_SYMBOL });
-        if (_.isUndefined(zrxToken)) {
-            throw new Error(InternalZeroExError.ZrxNotInTokenRegistry);
-        }
-        return zrxToken;
-    }
-    public getWethTokenOrThrow(): Token {
-        const wethToken = _.find(this._tokens, { symbol: WETH_TOKEN_SYMBOL });
-        if (_.isUndefined(wethToken)) {
-            throw new Error(InternalZeroExError.WethNotInTokenRegistry);
-        }
-        return wethToken;
-    }
-    public getDummyTokens(): Token[] {
-        const dummyTokens = _.filter(this._tokens, token => {
-            return !_.includes([PROTOCOL_TOKEN_SYMBOL, WETH_TOKEN_SYMBOL], token.symbol);
-        });
-        return dummyTokens;
-    }
-}
+export const tokenUtils = {
+    getProtocolTokenAddress(): string {
+        return artifacts.ZRXToken.networks[constants.TESTRPC_NETWORK_ID].address;
+    },
+};
diff --git a/packages/0x.js/test/utils/web3_wrapper.ts b/packages/0x.js/test/utils/web3_wrapper.ts
index f7d11f138..02c8c5918 100644
--- a/packages/0x.js/test/utils/web3_wrapper.ts
+++ b/packages/0x.js/test/utils/web3_wrapper.ts
@@ -1,8 +1,12 @@
-import { web3Factory } from '@0xproject/dev-utils';
-import { Provider } from '@0xproject/types';
+import { devConstants, web3Factory } from '@0xproject/dev-utils';
 import { Web3Wrapper } from '@0xproject/web3-wrapper';
+import { Provider } from 'ethereum-types';
 
+const txDefaults = {
+    from: devConstants.TESTRPC_FIRST_ADDRESS,
+    gas: devConstants.GAS_LIMIT,
+};
 const provider: Provider = web3Factory.getRpcProvider({ shouldUseInProcessGanache: true });
 const web3Wrapper = new Web3Wrapper(provider);
 
-export { provider, web3Wrapper };
+export { provider, web3Wrapper, txDefaults };
diff --git a/packages/contract-wrappers/src/index.ts b/packages/contract-wrappers/src/index.ts
index b3c4b2c60..d8e597ed1 100644
--- a/packages/contract-wrappers/src/index.ts
+++ b/packages/contract-wrappers/src/index.ts
@@ -2,6 +2,9 @@ export { ContractWrappers } from './contract_wrappers';
 export { ERC20TokenWrapper } from './contract_wrappers/erc20_token_wrapper';
 export { EtherTokenWrapper } from './contract_wrappers/ether_token_wrapper';
 export { ERC20ProxyWrapper } from './contract_wrappers/erc20_proxy_wrapper';
+export { ExchangeWrapper } from './contract_wrappers/exchange_wrapper';
+export { ERC721TokenWrapper } from './contract_wrappers/erc721_token_wrapper';
+export { ERC721ProxyWrapper } from './contract_wrappers/erc721_proxy_wrapper';
 
 export {
     ContractWrappersError,
diff --git a/packages/contract-wrappers/src/schemas/contract_wrappers_private_network_config_schema.ts b/packages/contract-wrappers/src/schemas/contract_wrappers_private_network_config_schema.ts
index d293b4d4f..7e2eca61c 100644
--- a/packages/contract-wrappers/src/schemas/contract_wrappers_private_network_config_schema.ts
+++ b/packages/contract-wrappers/src/schemas/contract_wrappers_private_network_config_schema.ts
@@ -8,7 +8,8 @@ export const contractWrappersPrivateNetworkConfigSchema = {
         gasPrice: { $ref: '/Number' },
         zrxContractAddress: { $ref: '/Address' },
         exchangeContractAddress: { $ref: '/Address' },
-        tokenTransferProxyContractAddress: { $ref: '/Address' },
+        erc20ProxyContractAddress: { $ref: '/Address' },
+        erc721ProxyContractAddress: { $ref: '/Address' },
         blockPollingIntervalMs: { type: 'number' },
         orderWatcherConfig: {
             type: 'object',
@@ -29,6 +30,7 @@ export const contractWrappersPrivateNetworkConfigSchema = {
         'networkId',
         'zrxContractAddress',
         'exchangeContractAddress',
-        'tokenTransferProxyContractAddress',
+        'erc20ProxyContractAddress',
+        'erc721ProxyContractAddress',
     ],
 };
diff --git a/packages/contract-wrappers/src/schemas/contract_wrappers_public_network_config_schema.ts b/packages/contract-wrappers/src/schemas/contract_wrappers_public_network_config_schema.ts
index f59b30ad0..363110767 100644
--- a/packages/contract-wrappers/src/schemas/contract_wrappers_public_network_config_schema.ts
+++ b/packages/contract-wrappers/src/schemas/contract_wrappers_public_network_config_schema.ts
@@ -22,7 +22,7 @@ export const contractWrappersPublicNetworkConfigSchema = {
         gasPrice: { $ref: '/Number' },
         zrxContractAddress: { $ref: '/Address' },
         exchangeContractAddress: { $ref: '/Address' },
-        tokenTransferProxyContractAddress: { $ref: '/Address' },
+        erc20ProxyContractAddress: { $ref: '/Address' },
         blockPollingIntervalMs: { type: 'number' },
         orderWatcherConfig: {
             type: 'object',