From 44162811bd57afb89e5d052a2d9db25007cc1463 Mon Sep 17 00:00:00 2001
From: Brandon Millman <brandon.millman@gmail.com>
Date: Fri, 26 Jan 2018 09:40:42 -0800
Subject: Add order signing and dispensing ability to faucet

---
 packages/testnet-faucets/package.json              |   3 +
 packages/testnet-faucets/src/ts/global.d.ts        |   8 ++
 packages/testnet-faucets/src/ts/handler.ts         | 116 +++++++++++++++------
 packages/testnet-faucets/src/ts/id_management.ts   |  16 ++-
 .../testnet-faucets/src/ts/parameter_extractor.ts  |  34 ++++++
 packages/testnet-faucets/src/ts/server.ts          |   7 +-
 .../testnet-faucets/src/ts/zrx_request_queue.ts    |   7 +-
 packages/testnet-faucets/tsconfig.json             |   7 +-
 yarn.lock                                          |   8 ++
 9 files changed, 167 insertions(+), 39 deletions(-)
 create mode 100644 packages/testnet-faucets/src/ts/parameter_extractor.ts

diff --git a/packages/testnet-faucets/package.json b/packages/testnet-faucets/package.json
index 3b42ebb3e..9f1c1e88d 100644
--- a/packages/testnet-faucets/package.json
+++ b/packages/testnet-faucets/package.json
@@ -18,6 +18,7 @@
         "@0xproject/utils": "^0.2.3",
         "body-parser": "^1.17.1",
         "ethereumjs-tx": "^1.3.3",
+        "ethereumjs-util": "^5.1.1",
         "express": "^4.15.2",
         "lodash": "^4.17.4",
         "rollbar": "^0.6.5",
@@ -35,6 +36,8 @@
         "shx": "^0.2.2",
         "source-map-loader": "^0.1.6",
         "tslint": "5.8.0",
+        "types-bn": "^0.0.1",
+        "types-ethereumjs-util": "0xProject/types-ethereumjs-util",
         "typescript": "~2.6.1",
         "web3-typescript-typings": "^0.9.7",
         "webpack": "^3.1.0",
diff --git a/packages/testnet-faucets/src/ts/global.d.ts b/packages/testnet-faucets/src/ts/global.d.ts
index 97cd35680..af9534377 100644
--- a/packages/testnet-faucets/src/ts/global.d.ts
+++ b/packages/testnet-faucets/src/ts/global.d.ts
@@ -24,3 +24,11 @@ declare module 'ethereumjs-tx' {
     }
     export = EthereumTx;
 }
+
+// Define extra params on Request for parameter extraction in middleware
+declare namespace Express {
+    export interface Request {
+        recipientAddress: string;
+        networkId: string;
+    }
+}
diff --git a/packages/testnet-faucets/src/ts/handler.ts b/packages/testnet-faucets/src/ts/handler.ts
index bf5b3e81e..7883cefd8 100644
--- a/packages/testnet-faucets/src/ts/handler.ts
+++ b/packages/testnet-faucets/src/ts/handler.ts
@@ -1,11 +1,20 @@
-import { addressUtils } from '@0xproject/utils';
+import { Order, SignedOrder, ZeroEx } from '0x.js';
+import { BigNumber } from '@0xproject/utils';
 import * as express from 'express';
 import * as _ from 'lodash';
+
+// HACK: web3 injects XMLHttpRequest into the global scope and ProviderEngine checks XMLHttpRequest
+// to know whether it is running in a browser or node environment. We need it to be undefined since
+// we are not running in a browser env.
+// Filed issue: https://github.com/ethereum/web3.js/issues/844
+(global as any).XMLHttpRequest = undefined;
+
 import ProviderEngine = require('web3-provider-engine');
 import HookedWalletSubprovider = require('web3-provider-engine/subproviders/hooked-wallet');
 import NonceSubprovider = require('web3-provider-engine/subproviders/nonce-tracker');
 import RpcSubprovider = require('web3-provider-engine/subproviders/rpc');
 
+import { configs } from './configs';
 import { EtherRequestQueue } from './ether_request_queue';
 import { idManagement } from './id_management';
 import { RequestQueue } from './request_queue';
@@ -19,32 +28,38 @@ import { ZRXRequestQueue } from './zrx_request_queue';
 // tslint:disable-next-line:ordered-imports
 import * as Web3 from 'web3';
 
-interface RequestQueueByNetworkId {
-    [networkId: string]: RequestQueue;
+interface ItemByNetworkId<T> {
+    [networkId: string]: T;
 }
 
-enum QueueType {
+enum RequestedAssetType {
     ETH = 'ETH',
+    WETH = 'WETH',
     ZRX = 'ZRX',
 }
 
-const DEFAULT_NETWORK_ID = 42; // kovan
+const TWO_DAYS_IN_MS = 1.728e8; // TODO: make this configurable
 
 export class Handler {
-    private _etherRequestQueueByNetworkId: RequestQueueByNetworkId = {};
-    private _zrxRequestQueueByNetworkId: RequestQueueByNetworkId = {};
+    private _zeroExByNetworkId: ItemByNetworkId<ZeroEx> = {};
+    private _etherRequestQueueByNetworkId: ItemByNetworkId<RequestQueue> = {};
+    private _zrxRequestQueueByNetworkId: ItemByNetworkId<RequestQueue> = {};
     constructor() {
         _.forIn(rpcUrls, (rpcUrl: string, networkId: string) => {
             const providerObj = this._createProviderEngine(rpcUrl);
             const web3 = new Web3(providerObj);
+            const zeroExConfig = {
+                networkId: +networkId,
+            };
+            const zeroEx = new ZeroEx(web3.currentProvider, zeroExConfig);
+            this._zeroExByNetworkId[networkId] = zeroEx;
             this._etherRequestQueueByNetworkId[networkId] = new EtherRequestQueue(web3);
-            this._zrxRequestQueueByNetworkId[networkId] = new ZRXRequestQueue(web3, +networkId);
+            this._zrxRequestQueueByNetworkId[networkId] = new ZRXRequestQueue(web3, zeroEx);
         });
     }
     public getQueueInfo(req: express.Request, res: express.Response) {
         res.setHeader('Content-Type', 'application/json');
         const queueInfo = _.mapValues(rpcUrls, (rpcUrl: string, networkId: string) => {
-            utils.consoleLog(networkId);
             const etherRequestQueue = this._etherRequestQueueByNetworkId[networkId];
             const zrxRequestQueue = this._zrxRequestQueueByNetworkId[networkId];
             return {
@@ -62,37 +77,83 @@ export class Handler {
         res.status(200).send(payload);
     }
     public dispenseEther(req: express.Request, res: express.Response) {
-        this._dispense(req, res, this._etherRequestQueueByNetworkId, QueueType.ETH);
+        this._dispenseAsset(req, res, this._etherRequestQueueByNetworkId, RequestedAssetType.ETH);
     }
     public dispenseZRX(req: express.Request, res: express.Response) {
-        this._dispense(req, res, this._zrxRequestQueueByNetworkId, QueueType.ZRX);
+        this._dispenseAsset(req, res, this._zrxRequestQueueByNetworkId, RequestedAssetType.ZRX);
+    }
+    public async dispenseWETHOrder(req: express.Request, res: express.Response) {
+        await this._dispenseOrder(req, res, RequestedAssetType.WETH);
     }
-    private _dispense(
+    public async dispenseZRXOrder(req: express.Request, res: express.Response, next: express.NextFunction) {
+        await this._dispenseOrder(req, res, RequestedAssetType.ZRX);
+    }
+    // tslint:disable-next-line:prefer-function-over-method
+    private _dispenseAsset(
         req: express.Request,
         res: express.Response,
-        requestQueueByNetworkId: RequestQueueByNetworkId,
-        queueType: QueueType,
+        requestQueueByNetworkId: ItemByNetworkId<RequestQueue>,
+        requestedAssetType: RequestedAssetType,
     ) {
-        const recipientAddress = req.params.recipient;
-        if (_.isUndefined(recipientAddress) || !this._isValidEthereumAddress(recipientAddress)) {
-            res.status(400).send('INVALID_RECIPIENT_ADDRESS');
-            return;
-        }
-        const networkId = _.get(req.query, 'networkId', DEFAULT_NETWORK_ID);
-        const requestQueue = _.get(requestQueueByNetworkId, networkId);
+        const requestQueue = _.get(requestQueueByNetworkId, req.networkId);
         if (_.isUndefined(requestQueue)) {
-            res.status(400).send('INVALID_NETWORK_ID');
+            res.status(400).send('UNSUPPORTED_NETWORK_ID');
             return;
         }
-        const lowerCaseRecipientAddress = recipientAddress.toLowerCase();
-        const didAddToQueue = requestQueue.add(lowerCaseRecipientAddress);
+        const didAddToQueue = requestQueue.add(req.recipientAddress);
         if (!didAddToQueue) {
             res.status(503).send('QUEUE_IS_FULL');
             return;
         }
-        utils.consoleLog(`Added ${lowerCaseRecipientAddress} to queue: ${queueType} networkId: ${networkId}`);
+        utils.consoleLog(`Added ${req.recipientAddress} to queue: ${requestedAssetType} networkId: ${req.networkId}`);
         res.status(200).end();
     }
+    private async _dispenseOrder(req: express.Request, res: express.Response, requestedAssetType: RequestedAssetType) {
+        const zeroEx = _.get(this._zeroExByNetworkId, req.networkId);
+        if (_.isUndefined(zeroEx)) {
+            res.status(400).send('UNSUPPORTED_NETWORK_ID');
+            return;
+        }
+        res.setHeader('Content-Type', 'application/json');
+        const makerTokenAddress = await zeroEx.tokenRegistry.getTokenAddressBySymbolIfExistsAsync(requestedAssetType);
+        if (_.isUndefined(makerTokenAddress)) {
+            res.status(400).send('INVALID_TOKEN');
+            return;
+        }
+        const takerTokenSymbol =
+            requestedAssetType === RequestedAssetType.WETH ? RequestedAssetType.ZRX : RequestedAssetType.WETH;
+        const takerTokenAddress = await zeroEx.tokenRegistry.getTokenAddressBySymbolIfExistsAsync(takerTokenSymbol);
+        if (_.isUndefined(takerTokenAddress)) {
+            res.status(400).send('INVALID_TOKEN');
+            return;
+        }
+        const makerTokenAmount = new BigNumber(0.1);
+        const takerTokenAmount = new BigNumber(0.1);
+        const order: Order = {
+            maker: configs.DISPENSER_ADDRESS,
+            taker: req.recipientAddress,
+            makerFee: new BigNumber(0),
+            takerFee: new BigNumber(0),
+            makerTokenAmount,
+            takerTokenAmount,
+            makerTokenAddress,
+            takerTokenAddress,
+            salt: ZeroEx.generatePseudoRandomSalt(),
+            exchangeContractAddress: zeroEx.exchange.getContractAddress(),
+            feeRecipient: ZeroEx.NULL_ADDRESS,
+            expirationUnixTimestampSec: new BigNumber(Date.now() + TWO_DAYS_IN_MS),
+        };
+        const orderHash = ZeroEx.getOrderHashHex(order);
+        const signature = await zeroEx.signOrderHashAsync(orderHash, configs.DISPENSER_ADDRESS, false);
+        const signedOrder = {
+            ...order,
+            signature,
+        };
+        const signedOrderHash = ZeroEx.getOrderHashHex(signedOrder);
+        const payload = JSON.stringify(signedOrder);
+        utils.consoleLog(`Dispensed signed order: ${payload}`);
+        res.status(200).send(payload);
+    }
     // tslint:disable-next-line:prefer-function-over-method
     private _createProviderEngine(rpcUrl: string) {
         const engine = new ProviderEngine();
@@ -106,9 +167,4 @@ export class Handler {
         engine.start();
         return engine;
     }
-    // tslint:disable-next-line:prefer-function-over-method
-    private _isValidEthereumAddress(address: string): boolean {
-        const lowercaseAddress = address.toLowerCase();
-        return addressUtils.isAddress(lowercaseAddress);
-    }
 }
diff --git a/packages/testnet-faucets/src/ts/id_management.ts b/packages/testnet-faucets/src/ts/id_management.ts
index db9b610a3..b088e6cf8 100644
--- a/packages/testnet-faucets/src/ts/id_management.ts
+++ b/packages/testnet-faucets/src/ts/id_management.ts
@@ -1,8 +1,10 @@
 import EthereumTx = require('ethereumjs-tx');
+import * as ethUtil from 'ethereumjs-util';
+import * as _ from 'lodash';
 
 import { configs } from './configs';
 
-type Callback = (err: Error | null, accounts: any) => void;
+type Callback = (err: Error | null, result: any) => void;
 
 export const idManagement = {
     getAccounts(callback: Callback) {
@@ -18,4 +20,16 @@ export const idManagement = {
         const rawTx = `0x${tx.serialize().toString('hex')}`;
         callback(null, rawTx);
     },
+    signMessage(message: object, callback: Callback) {
+        const data = _.get(message, 'data');
+        if (_.isUndefined(data)) {
+            callback(new Error('No data to sign'), null);
+        }
+        const privateKeyBuffer = new Buffer(configs.DISPENSER_PRIVATE_KEY as string, 'hex');
+        const dataBuff = ethUtil.toBuffer(data);
+        const msgHashBuff = ethUtil.hashPersonalMessage(dataBuff);
+        const sig = ethUtil.ecsign(msgHashBuff, privateKeyBuffer);
+        const rpcSig = ethUtil.toRpcSig(sig.v, sig.r, sig.s);
+        callback(null, rpcSig);
+    },
 };
diff --git a/packages/testnet-faucets/src/ts/parameter_extractor.ts b/packages/testnet-faucets/src/ts/parameter_extractor.ts
new file mode 100644
index 000000000..f3a26ae01
--- /dev/null
+++ b/packages/testnet-faucets/src/ts/parameter_extractor.ts
@@ -0,0 +1,34 @@
+import { addressUtils } from '@0xproject/utils';
+import { NextFunction, Request, Response } from 'express';
+import * as _ from 'lodash';
+
+import { configs } from './configs';
+import { rpcUrls } from './rpc_urls';
+import { utils } from './utils';
+
+const DEFAULT_NETWORK_ID = 42; // kovan
+
+export const parameterExtractor = {
+    extract(req: Request, res: Response, next: NextFunction) {
+        const recipientAddress = req.params.recipient;
+        if (_.isUndefined(recipientAddress) || !_isValidEthereumAddress(recipientAddress)) {
+            res.status(400).send('INVALID_RECIPIENT_ADDRESS');
+            return;
+        }
+        const lowerCaseRecipientAddress = recipientAddress.toLowerCase();
+        req.recipientAddress = lowerCaseRecipientAddress;
+        const networkId = _.get(req.query, 'networkId', DEFAULT_NETWORK_ID);
+        const rpcUrl = _.get(rpcUrls, networkId);
+        if (_.isUndefined(rpcUrl)) {
+            res.status(400).send('UNSUPPORTED_NETWORK_ID');
+            return;
+        }
+        req.networkId = networkId;
+        next();
+    },
+};
+
+function _isValidEthereumAddress(address: string): boolean {
+    const lowercaseAddress = address.toLowerCase();
+    return addressUtils.isAddress(lowercaseAddress);
+}
diff --git a/packages/testnet-faucets/src/ts/server.ts b/packages/testnet-faucets/src/ts/server.ts
index 26edfff5a..38c2f1428 100644
--- a/packages/testnet-faucets/src/ts/server.ts
+++ b/packages/testnet-faucets/src/ts/server.ts
@@ -3,6 +3,7 @@ import * as express from 'express';
 
 import { errorReporter } from './error_reporter';
 import { Handler } from './handler';
+import { parameterExtractor } from './parameter_extractor';
 
 // Setup the errorReporter to catch uncaught exceptions and unhandled rejections
 errorReporter.setup();
@@ -20,8 +21,10 @@ app.get('/ping', (req: express.Request, res: express.Response) => {
     res.status(200).send('pong');
 });
 app.get('/info', handler.getQueueInfo.bind(handler));
-app.get('/ether/:recipient', handler.dispenseEther.bind(handler));
-app.get('/zrx/:recipient', handler.dispenseZRX.bind(handler));
+app.get('/ether/:recipient', parameterExtractor.extract, handler.dispenseEther.bind(handler));
+app.get('/zrx/:recipient', parameterExtractor.extract, handler.dispenseZRX.bind(handler));
+app.get('/order/weth/:recipient', parameterExtractor.extract, handler.dispenseWETHOrder.bind(handler));
+app.get('/order/zrx/:recipient', parameterExtractor.extract, handler.dispenseZRXOrder.bind(handler));
 
 // Log to rollbar any errors unhandled by handlers
 app.use(errorReporter.errorHandler());
diff --git a/packages/testnet-faucets/src/ts/zrx_request_queue.ts b/packages/testnet-faucets/src/ts/zrx_request_queue.ts
index 3d73f9dd2..1a8bfe1d8 100644
--- a/packages/testnet-faucets/src/ts/zrx_request_queue.ts
+++ b/packages/testnet-faucets/src/ts/zrx_request_queue.ts
@@ -18,13 +18,10 @@ const QUEUE_INTERVAL_MS = 5000;
 
 export class ZRXRequestQueue extends RequestQueue {
     private _zeroEx: ZeroEx;
-    constructor(web3: Web3, networkId: number) {
+    constructor(web3: Web3, zeroEx: ZeroEx) {
         super(web3);
         this.queueIntervalMs = QUEUE_INTERVAL_MS;
-        const zeroExConfig = {
-            networkId,
-        };
-        this._zeroEx = new ZeroEx(web3.currentProvider, zeroExConfig);
+        this._zeroEx = zeroEx;
     }
     protected async processNextRequestFireAndForgetAsync(recipientAddress: string) {
         utils.consoleLog(`Processing ZRX ${recipientAddress}`);
diff --git a/packages/testnet-faucets/tsconfig.json b/packages/testnet-faucets/tsconfig.json
index 7f0c084ff..79f9e2413 100644
--- a/packages/testnet-faucets/tsconfig.json
+++ b/packages/testnet-faucets/tsconfig.json
@@ -3,5 +3,10 @@
     "compilerOptions": {
         "outDir": "lib"
     },
-    "include": ["./src/ts/**/*", "../../node_modules/web3-typescript-typings/index.d.ts"]
+    "include": [
+        "./src/ts/**/*",
+        "../../node_modules/types-bn/index.d.ts",
+        "../../node_modules/types-ethereumjs-util/index.d.ts",
+        "../../node_modules/web3-typescript-typings/index.d.ts"
+    ]
 }
diff --git a/yarn.lock b/yarn.lock
index 4c66bf2cb..38bca8d81 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -9097,6 +9097,14 @@ types-bn@^0.0.1:
   dependencies:
     bn.js "4.11.7"
 
+types-ethereumjs-util@0xProject/types-ethereumjs-util:
+  version "0.0.6"
+  resolved "https://codeload.github.com/0xProject/types-ethereumjs-util/tar.gz/0c5058e4f9d6585f7c7c1f88939546acb14323b8"
+  dependencies:
+    bn.js "^4.11.7"
+    buffer "^5.0.6"
+    rlp "^2.0.0"
+
 types-ethereumjs-util@0xproject/types-ethereumjs-util:
   version "0.0.6"
   resolved "https://codeload.github.com/0xproject/types-ethereumjs-util/tar.gz/0c5058e4f9d6585f7c7c1f88939546acb14323b8"
-- 
cgit 


From 3a1ca32ff172f735e4b69f125fea4237c83643f0 Mon Sep 17 00:00:00 2001
From: Brandon Millman <brandon.millman@gmail.com>
Date: Tue, 30 Jan 2018 12:10:06 -0800
Subject: Fix lint errors

---
 packages/testnet-faucets/src/ts/global.d.ts | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/packages/testnet-faucets/src/ts/global.d.ts b/packages/testnet-faucets/src/ts/global.d.ts
index af9534377..50cd205a1 100644
--- a/packages/testnet-faucets/src/ts/global.d.ts
+++ b/packages/testnet-faucets/src/ts/global.d.ts
@@ -26,9 +26,11 @@ declare module 'ethereumjs-tx' {
 }
 
 // Define extra params on Request for parameter extraction in middleware
+/* tslint:disable */
 declare namespace Express {
     export interface Request {
         recipientAddress: string;
         networkId: string;
     }
 }
+/* tslint:enable */
-- 
cgit 


From c7db837214056be5b3661cd5d082e9dc94e4e136 Mon Sep 17 00:00:00 2001
From: Brandon Millman <brandon.millman@gmail.com>
Date: Wed, 31 Jan 2018 15:40:13 -0800
Subject: Update testnet-faucets README

---
 packages/testnet-faucets/README.md | 14 +++++++++++---
 1 file changed, 11 insertions(+), 3 deletions(-)

diff --git a/packages/testnet-faucets/README.md b/packages/testnet-faucets/README.md
index a52d16a00..72532bbb2 100644
--- a/packages/testnet-faucets/README.md
+++ b/packages/testnet-faucets/README.md
@@ -88,15 +88,23 @@ Returns a JSON payload describing the state of the queues for each network. For
 
 `GET /ether/:recipient`
 
-Where recipient is a hex encoded Ethereum address prefixed with `0x`.
+Schedules a transaction that sends 0.1 ETH to the `recipient` where `recipient` is a hex encoded Ethereum address prefixed with `0x`.
 
 `GET /zrx/:recipient`
 
-Where recipient is a hex encoded Ethereum address prefixed with `0x`.
+Schedules a transaction that sends 0.1 ZRX to the `recipient` where `recipient` is a hex encoded Ethereum address prefixed with `0x`.
+
+`GET /order/weth/:recipient`
+
+Returns a JSON payload describing an order for 0.1 WETH in exchange for 0.1 ZRX signed by the dispenser address. The taker is specified by `recipient` where `recipient` is a hex encoded Ethereum address prefixed with `0x`.
+
+`GET /order/zrx/:recipient`
+
+Returns a JSON payload describing an order for 0.1 ZRX in exchange for 0.1 WETH signed by the dispenser address. The taker is specified by `recipient` where `recipient` is a hex encoded Ethereum address prefixed with `0x`.
 
 #### Parameters
 
-The endpoints `/ether` and `/zrx` take a query parameter named `networkId` to specify the desired network where you would like to receive the ETH or ZRX. For example:
+The endpoints `/ether`, `/zrx`, `/order/weth/`, and `/order/zrx/`  take a query parameter named `networkId` to specify the desired ethereum network
 
 ```bash
 curl -i http://localhost:3000/ether/0x14e2F1F157E7DD4057D02817436D628A37120FD1\?networkId=3
-- 
cgit 


From 6577d607332e2fb1a442d663e260ecb969457c36 Mon Sep 17 00:00:00 2001
From: Brandon Millman <brandon.millman@gmail.com>
Date: Wed, 31 Jan 2018 15:52:05 -0800
Subject: Prettier

---
 packages/testnet-faucets/README.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/packages/testnet-faucets/README.md b/packages/testnet-faucets/README.md
index 72532bbb2..d0b9858a1 100644
--- a/packages/testnet-faucets/README.md
+++ b/packages/testnet-faucets/README.md
@@ -104,7 +104,7 @@ Returns a JSON payload describing an order for 0.1 ZRX in exchange for 0.1 WETH
 
 #### Parameters
 
-The endpoints `/ether`, `/zrx`, `/order/weth/`, and `/order/zrx/`  take a query parameter named `networkId` to specify the desired ethereum network
+The endpoints `/ether`, `/zrx`, `/order/weth/`, and `/order/zrx/` take a query parameter named `networkId` to specify the desired ethereum network
 
 ```bash
 curl -i http://localhost:3000/ether/0x14e2F1F157E7DD4057D02817436D628A37120FD1\?networkId=3
-- 
cgit 


From 83d0bad3a1e6635dedb46fbd99ee1bec5246d4bf Mon Sep 17 00:00:00 2001
From: Brandon Millman <brandon.millman@gmail.com>
Date: Mon, 5 Feb 2018 16:28:03 -0800
Subject: Addressed comments and update 0xProject/types-ethereumjs-util deps

---
 packages/contracts/package.json                    |  2 +-
 packages/dev-utils/package.json                    |  2 +-
 packages/subproviders/package.json                 |  2 +-
 packages/testnet-faucets/README.md                 | 21 +++--
 packages/testnet-faucets/package.json              |  1 -
 packages/testnet-faucets/src/ts/global.d.ts        | 10 ---
 packages/testnet-faucets/src/ts/handler.ts         | 92 ++++++++++------------
 packages/testnet-faucets/src/ts/id_management.ts   |  8 +-
 .../testnet-faucets/src/ts/parameter_extractor.ts  | 34 --------
 .../src/ts/parameter_transformer.ts                | 29 +++++++
 packages/testnet-faucets/src/ts/request_queue.ts   |  8 +-
 packages/testnet-faucets/src/ts/rpc_urls.ts        |  8 +-
 packages/testnet-faucets/src/ts/server.ts          | 10 +--
 yarn.lock                                          | 17 ++--
 14 files changed, 107 insertions(+), 137 deletions(-)
 delete mode 100644 packages/testnet-faucets/src/ts/parameter_extractor.ts
 create mode 100644 packages/testnet-faucets/src/ts/parameter_transformer.ts

diff --git a/packages/contracts/package.json b/packages/contracts/package.json
index d5e352c5d..b3b08fe29 100644
--- a/packages/contracts/package.json
+++ b/packages/contracts/package.json
@@ -52,7 +52,7 @@
         "solc": "^0.4.18",
         "tslint": "5.8.0",
         "types-bn": "^0.0.1",
-        "types-ethereumjs-util": "0xproject/types-ethereumjs-util",
+        "types-ethereumjs-util": "0xProject/types-ethereumjs-util",
         "typescript": "2.7.1",
         "web3-typescript-typings": "^0.9.8",
         "yargs": "^10.0.3"
diff --git a/packages/dev-utils/package.json b/packages/dev-utils/package.json
index 0c292c01f..fca082583 100644
--- a/packages/dev-utils/package.json
+++ b/packages/dev-utils/package.json
@@ -27,7 +27,7 @@
         "shx": "^0.2.2",
         "tslint": "5.8.0",
         "types-bn": "^0.0.1",
-        "types-ethereumjs-util": "0xproject/types-ethereumjs-util",
+        "types-ethereumjs-util": "0xProject/types-ethereumjs-util",
         "typescript": "2.7.1"
     },
     "dependencies": {
diff --git a/packages/subproviders/package.json b/packages/subproviders/package.json
index 18ba247ea..ee283dff3 100644
--- a/packages/subproviders/package.json
+++ b/packages/subproviders/package.json
@@ -48,7 +48,7 @@
         "shx": "^0.2.2",
         "tslint": "5.8.0",
         "types-bn": "^0.0.1",
-        "types-ethereumjs-util": "0xproject/types-ethereumjs-util",
+        "types-ethereumjs-util": "0xProject/types-ethereumjs-util",
         "typescript": "2.7.1",
         "web3-typescript-typings": "^0.9.8",
         "webpack": "^3.1.0"
diff --git a/packages/testnet-faucets/README.md b/packages/testnet-faucets/README.md
index d0b9858a1..6cd842ea6 100644
--- a/packages/testnet-faucets/README.md
+++ b/packages/testnet-faucets/README.md
@@ -86,25 +86,24 @@ Returns a JSON payload describing the state of the queues for each network. For
 }
 ```
 
-`GET /ether/:recipient`
+`GET /ether/:recipient?networkId=:networkId`
 
-Schedules a transaction that sends 0.1 ETH to the `recipient` where `recipient` is a hex encoded Ethereum address prefixed with `0x`.
+Schedules a transaction that sends 0.1 ETH to the `recipient` on the network specified by `networkId` where `recipient` is a hex encoded Ethereum address prefixed with `0x`. If no `networkId` is provided via query parameters the faucet will default to network 42 (Kovan).
 
-`GET /zrx/:recipient`
 
-Schedules a transaction that sends 0.1 ZRX to the `recipient` where `recipient` is a hex encoded Ethereum address prefixed with `0x`.
+`GET /zrx/:recipient?networkId=:networkId`
 
-`GET /order/weth/:recipient`
+Schedules a transaction that sends 0.1 ZRX to the `recipient` on the network specified by `networkId` where `recipient` is a hex encoded Ethereum address prefixed with `0x`. If no `networkId` is provided via query parameters the faucet will default to network 42 (Kovan).
 
-Returns a JSON payload describing an order for 0.1 WETH in exchange for 0.1 ZRX signed by the dispenser address. The taker is specified by `recipient` where `recipient` is a hex encoded Ethereum address prefixed with `0x`.
+`GET /order/weth/:recipient?networkId=:networkId`
 
-`GET /order/zrx/:recipient`
+Returns a JSON payload describing an order for 0.1 WETH in exchange for 0.1 ZRX signed by the dispenser address on the network specified by `networkId`. The taker is specified by `recipient` where `recipient` is a hex encoded Ethereum address prefixed with `0x`. If no `networkId` is provided via query parameters the faucet will default to network 42 (Kovan).
 
-Returns a JSON payload describing an order for 0.1 ZRX in exchange for 0.1 WETH signed by the dispenser address. The taker is specified by `recipient` where `recipient` is a hex encoded Ethereum address prefixed with `0x`.
+`GET /order/zrx/:recipient?networkId=:networkId`
 
-#### Parameters
+Returns a JSON payload describing an order for 0.1 ZRX in exchange for 0.1 WETH signed by the dispenser address on the network specified by `networkId`. The taker is specified by `recipient` where `recipient` is a hex encoded Ethereum address prefixed with `0x`. If no `networkId` is provided via query parameters the faucet will default to network 42 (Kovan).
 
-The endpoints `/ether`, `/zrx`, `/order/weth/`, and `/order/zrx/` take a query parameter named `networkId` to specify the desired ethereum network
+#### Example request
 
 ```bash
 curl -i http://localhost:3000/ether/0x14e2F1F157E7DD4057D02817436D628A37120FD1\?networkId=3
@@ -112,8 +111,6 @@ curl -i http://localhost:3000/ether/0x14e2F1F157E7DD4057D02817436D628A37120FD1\?
 
 This command will request the local server to initiate a transfer of 0.1 ETH from the dispensing address to `0x14e2F1F157E7DD4057D02817436D628A37120FD1` on the Ropsten testnet.
 
-If no `networkId` is provided via query parameters the faucet will default to network 42 (Kovan)
-
 ### Docker configs
 
 ```
diff --git a/packages/testnet-faucets/package.json b/packages/testnet-faucets/package.json
index f73857f82..b7a55aeb0 100644
--- a/packages/testnet-faucets/package.json
+++ b/packages/testnet-faucets/package.json
@@ -37,7 +37,6 @@
         "shx": "^0.2.2",
         "source-map-loader": "^0.1.6",
         "tslint": "5.8.0",
-        "types-bn": "^0.0.1",
         "types-ethereumjs-util": "0xProject/types-ethereumjs-util",
         "typescript": "2.7.1",
         "web3-typescript-typings": "^0.9.8",
diff --git a/packages/testnet-faucets/src/ts/global.d.ts b/packages/testnet-faucets/src/ts/global.d.ts
index 50cd205a1..97cd35680 100644
--- a/packages/testnet-faucets/src/ts/global.d.ts
+++ b/packages/testnet-faucets/src/ts/global.d.ts
@@ -24,13 +24,3 @@ declare module 'ethereumjs-tx' {
     }
     export = EthereumTx;
 }
-
-// Define extra params on Request for parameter extraction in middleware
-/* tslint:disable */
-declare namespace Express {
-    export interface Request {
-        recipientAddress: string;
-        networkId: string;
-    }
-}
-/* tslint:enable */
diff --git a/packages/testnet-faucets/src/ts/handler.ts b/packages/testnet-faucets/src/ts/handler.ts
index 7883cefd8..1dae8a47f 100644
--- a/packages/testnet-faucets/src/ts/handler.ts
+++ b/packages/testnet-faucets/src/ts/handler.ts
@@ -2,13 +2,13 @@ import { Order, SignedOrder, ZeroEx } from '0x.js';
 import { BigNumber } from '@0xproject/utils';
 import * as express from 'express';
 import * as _ from 'lodash';
+import * as Web3 from 'web3';
 
 // HACK: web3 injects XMLHttpRequest into the global scope and ProviderEngine checks XMLHttpRequest
 // to know whether it is running in a browser or node environment. We need it to be undefined since
 // we are not running in a browser env.
 // Filed issue: https://github.com/ethereum/web3.js/issues/844
 (global as any).XMLHttpRequest = undefined;
-
 import ProviderEngine = require('web3-provider-engine');
 import HookedWalletSubprovider = require('web3-provider-engine/subproviders/hooked-wallet');
 import NonceSubprovider = require('web3-provider-engine/subproviders/nonce-tracker');
@@ -22,12 +22,6 @@ import { rpcUrls } from './rpc_urls';
 import { utils } from './utils';
 import { ZRXRequestQueue } from './zrx_request_queue';
 
-// HACK: web3 leaks XMLHttpRequest into the global scope and causes requests to hang
-// because they are using the wrong XHR package.
-// Filed issue: https://github.com/ethereum/web3.js/issues/844
-// tslint:disable-next-line:ordered-imports
-import * as Web3 from 'web3';
-
 interface ItemByNetworkId<T> {
     [networkId: string]: T;
 }
@@ -38,15 +32,46 @@ enum RequestedAssetType {
     ZRX = 'ZRX',
 }
 
-const TWO_DAYS_IN_MS = 1.728e8; // TODO: make this configurable
+const FIVE_DAYS_IN_MS = 4.32e8; // TODO: make this configurable
 
 export class Handler {
     private _zeroExByNetworkId: ItemByNetworkId<ZeroEx> = {};
     private _etherRequestQueueByNetworkId: ItemByNetworkId<RequestQueue> = {};
     private _zrxRequestQueueByNetworkId: ItemByNetworkId<RequestQueue> = {};
+    private static _dispenseAsset(
+        req: express.Request,
+        res: express.Response,
+        requestQueueByNetworkId: ItemByNetworkId<RequestQueue>,
+        requestedAssetType: RequestedAssetType,
+    ) {
+        const requestQueue = _.get(requestQueueByNetworkId, req.params.networkId);
+        if (_.isUndefined(requestQueue)) {
+            res.status(400).send('UNSUPPORTED_NETWORK_ID');
+            return;
+        }
+        const didAddToQueue = requestQueue.add(req.params.recipient);
+        if (!didAddToQueue) {
+            res.status(503).send('QUEUE_IS_FULL');
+            return;
+        }
+        utils.consoleLog(`Added ${req.params.recipient} to queue: ${requestedAssetType} networkId: ${req.params.networkId}`);
+        res.status(200).end();
+    }
+    private static _createProviderEngine(rpcUrl: string) {
+        const engine = new ProviderEngine();
+        engine.addProvider(new NonceSubprovider());
+        engine.addProvider(new HookedWalletSubprovider(idManagement));
+        engine.addProvider(
+            new RpcSubprovider({
+                rpcUrl,
+            }),
+        );
+        engine.start();
+        return engine;
+    }
     constructor() {
         _.forIn(rpcUrls, (rpcUrl: string, networkId: string) => {
-            const providerObj = this._createProviderEngine(rpcUrl);
+            const providerObj = Handler._createProviderEngine(rpcUrl);
             const web3 = new Web3(providerObj);
             const zeroExConfig = {
                 networkId: +networkId,
@@ -77,10 +102,10 @@ export class Handler {
         res.status(200).send(payload);
     }
     public dispenseEther(req: express.Request, res: express.Response) {
-        this._dispenseAsset(req, res, this._etherRequestQueueByNetworkId, RequestedAssetType.ETH);
+        Handler._dispenseAsset(req, res, this._etherRequestQueueByNetworkId, RequestedAssetType.ETH);
     }
     public dispenseZRX(req: express.Request, res: express.Response) {
-        this._dispenseAsset(req, res, this._zrxRequestQueueByNetworkId, RequestedAssetType.ZRX);
+        Handler._dispenseAsset(req, res, this._zrxRequestQueueByNetworkId, RequestedAssetType.ZRX);
     }
     public async dispenseWETHOrder(req: express.Request, res: express.Response) {
         await this._dispenseOrder(req, res, RequestedAssetType.WETH);
@@ -88,28 +113,8 @@ export class Handler {
     public async dispenseZRXOrder(req: express.Request, res: express.Response, next: express.NextFunction) {
         await this._dispenseOrder(req, res, RequestedAssetType.ZRX);
     }
-    // tslint:disable-next-line:prefer-function-over-method
-    private _dispenseAsset(
-        req: express.Request,
-        res: express.Response,
-        requestQueueByNetworkId: ItemByNetworkId<RequestQueue>,
-        requestedAssetType: RequestedAssetType,
-    ) {
-        const requestQueue = _.get(requestQueueByNetworkId, req.networkId);
-        if (_.isUndefined(requestQueue)) {
-            res.status(400).send('UNSUPPORTED_NETWORK_ID');
-            return;
-        }
-        const didAddToQueue = requestQueue.add(req.recipientAddress);
-        if (!didAddToQueue) {
-            res.status(503).send('QUEUE_IS_FULL');
-            return;
-        }
-        utils.consoleLog(`Added ${req.recipientAddress} to queue: ${requestedAssetType} networkId: ${req.networkId}`);
-        res.status(200).end();
-    }
     private async _dispenseOrder(req: express.Request, res: express.Response, requestedAssetType: RequestedAssetType) {
-        const zeroEx = _.get(this._zeroExByNetworkId, req.networkId);
+        const zeroEx = _.get(this._zeroExByNetworkId, req.params.networkId);
         if (_.isUndefined(zeroEx)) {
             res.status(400).send('UNSUPPORTED_NETWORK_ID');
             return;
@@ -117,21 +122,19 @@ export class Handler {
         res.setHeader('Content-Type', 'application/json');
         const makerTokenAddress = await zeroEx.tokenRegistry.getTokenAddressBySymbolIfExistsAsync(requestedAssetType);
         if (_.isUndefined(makerTokenAddress)) {
-            res.status(400).send('INVALID_TOKEN');
-            return;
+            throw new Error(`Unsupported asset type: ${requestedAssetType}`);
         }
         const takerTokenSymbol =
             requestedAssetType === RequestedAssetType.WETH ? RequestedAssetType.ZRX : RequestedAssetType.WETH;
         const takerTokenAddress = await zeroEx.tokenRegistry.getTokenAddressBySymbolIfExistsAsync(takerTokenSymbol);
         if (_.isUndefined(takerTokenAddress)) {
-            res.status(400).send('INVALID_TOKEN');
-            return;
+            throw new Error(`Unsupported asset type: ${requestedAssetType}`);
         }
         const makerTokenAmount = new BigNumber(0.1);
         const takerTokenAmount = new BigNumber(0.1);
         const order: Order = {
             maker: configs.DISPENSER_ADDRESS,
-            taker: req.recipientAddress,
+            taker: req.params.recipient,
             makerFee: new BigNumber(0),
             takerFee: new BigNumber(0),
             makerTokenAmount,
@@ -141,7 +144,7 @@ export class Handler {
             salt: ZeroEx.generatePseudoRandomSalt(),
             exchangeContractAddress: zeroEx.exchange.getContractAddress(),
             feeRecipient: ZeroEx.NULL_ADDRESS,
-            expirationUnixTimestampSec: new BigNumber(Date.now() + TWO_DAYS_IN_MS),
+            expirationUnixTimestampSec: new BigNumber(Date.now() + FIVE_DAYS_IN_MS),
         };
         const orderHash = ZeroEx.getOrderHashHex(order);
         const signature = await zeroEx.signOrderHashAsync(orderHash, configs.DISPENSER_ADDRESS, false);
@@ -154,17 +157,4 @@ export class Handler {
         utils.consoleLog(`Dispensed signed order: ${payload}`);
         res.status(200).send(payload);
     }
-    // tslint:disable-next-line:prefer-function-over-method
-    private _createProviderEngine(rpcUrl: string) {
-        const engine = new ProviderEngine();
-        engine.addProvider(new NonceSubprovider());
-        engine.addProvider(new HookedWalletSubprovider(idManagement));
-        engine.addProvider(
-            new RpcSubprovider({
-                rpcUrl,
-            }),
-        );
-        engine.start();
-        return engine;
-    }
 }
diff --git a/packages/testnet-faucets/src/ts/id_management.ts b/packages/testnet-faucets/src/ts/id_management.ts
index b088e6cf8..7c598f91c 100644
--- a/packages/testnet-faucets/src/ts/id_management.ts
+++ b/packages/testnet-faucets/src/ts/id_management.ts
@@ -21,12 +21,12 @@ export const idManagement = {
         callback(null, rawTx);
     },
     signMessage(message: object, callback: Callback) {
-        const data = _.get(message, 'data');
-        if (_.isUndefined(data)) {
-            callback(new Error('No data to sign'), null);
+        const dataIfExists = _.get(message, 'data');
+        if (_.isUndefined(dataIfExists)) {
+            callback(new Error('NO_DATA_TO_SIGN'), null);
         }
         const privateKeyBuffer = new Buffer(configs.DISPENSER_PRIVATE_KEY as string, 'hex');
-        const dataBuff = ethUtil.toBuffer(data);
+        const dataBuff = ethUtil.toBuffer(dataIfExists);
         const msgHashBuff = ethUtil.hashPersonalMessage(dataBuff);
         const sig = ethUtil.ecsign(msgHashBuff, privateKeyBuffer);
         const rpcSig = ethUtil.toRpcSig(sig.v, sig.r, sig.s);
diff --git a/packages/testnet-faucets/src/ts/parameter_extractor.ts b/packages/testnet-faucets/src/ts/parameter_extractor.ts
deleted file mode 100644
index f3a26ae01..000000000
--- a/packages/testnet-faucets/src/ts/parameter_extractor.ts
+++ /dev/null
@@ -1,34 +0,0 @@
-import { addressUtils } from '@0xproject/utils';
-import { NextFunction, Request, Response } from 'express';
-import * as _ from 'lodash';
-
-import { configs } from './configs';
-import { rpcUrls } from './rpc_urls';
-import { utils } from './utils';
-
-const DEFAULT_NETWORK_ID = 42; // kovan
-
-export const parameterExtractor = {
-    extract(req: Request, res: Response, next: NextFunction) {
-        const recipientAddress = req.params.recipient;
-        if (_.isUndefined(recipientAddress) || !_isValidEthereumAddress(recipientAddress)) {
-            res.status(400).send('INVALID_RECIPIENT_ADDRESS');
-            return;
-        }
-        const lowerCaseRecipientAddress = recipientAddress.toLowerCase();
-        req.recipientAddress = lowerCaseRecipientAddress;
-        const networkId = _.get(req.query, 'networkId', DEFAULT_NETWORK_ID);
-        const rpcUrl = _.get(rpcUrls, networkId);
-        if (_.isUndefined(rpcUrl)) {
-            res.status(400).send('UNSUPPORTED_NETWORK_ID');
-            return;
-        }
-        req.networkId = networkId;
-        next();
-    },
-};
-
-function _isValidEthereumAddress(address: string): boolean {
-    const lowercaseAddress = address.toLowerCase();
-    return addressUtils.isAddress(lowercaseAddress);
-}
diff --git a/packages/testnet-faucets/src/ts/parameter_transformer.ts b/packages/testnet-faucets/src/ts/parameter_transformer.ts
new file mode 100644
index 000000000..c5711d462
--- /dev/null
+++ b/packages/testnet-faucets/src/ts/parameter_transformer.ts
@@ -0,0 +1,29 @@
+import { addressUtils } from '@0xproject/utils';
+import { NextFunction, Request, Response } from 'express';
+import * as _ from 'lodash';
+
+import { configs } from './configs';
+import { rpcUrls } from './rpc_urls';
+import { utils } from './utils';
+
+const DEFAULT_NETWORK_ID = 42; // kovan
+
+export const parameterTransformer = {
+    transform(req: Request, res: Response, next: NextFunction) {
+        const recipientAddress = req.params.recipient;
+        if (_.isUndefined(recipientAddress) || !addressUtils.isAddress(recipientAddress)) {
+            res.status(400).send('INVALID_RECIPIENT_ADDRESS');
+            return;
+        }
+        const lowerCaseRecipientAddress = recipientAddress.toLowerCase();
+        req.params.recipient = lowerCaseRecipientAddress;
+        const networkId = _.get(req.query, 'networkId', DEFAULT_NETWORK_ID);
+        const rpcUrlIfExists = _.get(rpcUrls, networkId);
+        if (_.isUndefined(rpcUrlIfExists)) {
+            res.status(400).send('UNSUPPORTED_NETWORK_ID');
+            return;
+        }
+        req.params.networkId = networkId;
+        next();
+    },
+};
diff --git a/packages/testnet-faucets/src/ts/request_queue.ts b/packages/testnet-faucets/src/ts/request_queue.ts
index 7d685522a..718f8be0c 100644
--- a/packages/testnet-faucets/src/ts/request_queue.ts
+++ b/packages/testnet-faucets/src/ts/request_queue.ts
@@ -13,14 +13,12 @@ const DEFAULT_QUEUE_INTERVAL_MS = 1000;
 export class RequestQueue {
     protected _queueIntervalMs: number;
     protected _queue: string[];
-    protected _queueIntervalId: NodeJS.Timer;
+    protected _queueIntervalId?: NodeJS.Timer;
     protected _web3: Web3;
     constructor(web3: any) {
         this._queueIntervalMs = DEFAULT_QUEUE_INTERVAL_MS;
         this._queue = [];
-
         this._web3 = web3;
-
         this._start();
     }
     public add(recipientAddress: string): boolean {
@@ -47,7 +45,9 @@ export class RequestQueue {
         }, this._queueIntervalMs);
     }
     protected _stop() {
-        clearInterval(this._queueIntervalId);
+        if (!_.isUndefined(this._queueIntervalId)) {
+            clearInterval(this._queueIntervalId);
+        }
     }
     // tslint:disable-next-line:prefer-function-over-method
     protected async _processNextRequestFireAndForgetAsync(recipientAddress: string) {
diff --git a/packages/testnet-faucets/src/ts/rpc_urls.ts b/packages/testnet-faucets/src/ts/rpc_urls.ts
index 25a3b938f..c57e85eac 100644
--- a/packages/testnet-faucets/src/ts/rpc_urls.ts
+++ b/packages/testnet-faucets/src/ts/rpc_urls.ts
@@ -1,13 +1,13 @@
 import { configs } from './configs';
 
 const productionRpcUrls = {
-    '2': `https://ropsten.infura.io/${configs.INFURA_API_KEY}`,
-    '3': `https://rinkeby.infura.io/${configs.INFURA_API_KEY}`,
-    '42': `https://kovan.infura.io/${configs.INFURA_API_KEY}`,
+    2: `https://ropsten.infura.io/${configs.INFURA_API_KEY}`,
+    3: `https://rinkeby.infura.io/${configs.INFURA_API_KEY}`,
+    42: `https://kovan.infura.io/${configs.INFURA_API_KEY}`,
 };
 
 const developmentRpcUrls = {
-    '50': 'http://127.0.0.1:8545',
+    50: 'http://127.0.0.1:8545',
 };
 
 export const rpcUrls = configs.ENVIRONMENT === 'development' ? developmentRpcUrls : productionRpcUrls;
diff --git a/packages/testnet-faucets/src/ts/server.ts b/packages/testnet-faucets/src/ts/server.ts
index 38c2f1428..be1077756 100644
--- a/packages/testnet-faucets/src/ts/server.ts
+++ b/packages/testnet-faucets/src/ts/server.ts
@@ -3,7 +3,7 @@ import * as express from 'express';
 
 import { errorReporter } from './error_reporter';
 import { Handler } from './handler';
-import { parameterExtractor } from './parameter_extractor';
+import { parameterTransformer } from './parameter_transformer';
 
 // Setup the errorReporter to catch uncaught exceptions and unhandled rejections
 errorReporter.setup();
@@ -21,10 +21,10 @@ app.get('/ping', (req: express.Request, res: express.Response) => {
     res.status(200).send('pong');
 });
 app.get('/info', handler.getQueueInfo.bind(handler));
-app.get('/ether/:recipient', parameterExtractor.extract, handler.dispenseEther.bind(handler));
-app.get('/zrx/:recipient', parameterExtractor.extract, handler.dispenseZRX.bind(handler));
-app.get('/order/weth/:recipient', parameterExtractor.extract, handler.dispenseWETHOrder.bind(handler));
-app.get('/order/zrx/:recipient', parameterExtractor.extract, handler.dispenseZRXOrder.bind(handler));
+app.get('/ether/:recipient', parameterTransformer.transform, handler.dispenseEther.bind(handler));
+app.get('/zrx/:recipient', parameterTransformer.transform, handler.dispenseZRX.bind(handler));
+app.get('/order/weth/:recipient', parameterTransformer.transform, handler.dispenseWETHOrder.bind(handler));
+app.get('/order/zrx/:recipient', parameterTransformer.transform, handler.dispenseZRXOrder.bind(handler));
 
 // Log to rollbar any errors unhandled by handlers
 app.use(errorReporter.errorHandler());
diff --git a/yarn.lock b/yarn.lock
index 668fa4944..832856c62 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -9097,21 +9097,20 @@ types-bn@^0.0.1:
   dependencies:
     bn.js "4.11.7"
 
-types-ethereumjs-util@0xProject/types-ethereumjs-util:
-  version "0.0.6"
-  resolved "https://codeload.github.com/0xProject/types-ethereumjs-util/tar.gz/0c5058e4f9d6585f7c7c1f88939546acb14323b8"
+"types-bn@https://github.com/machinomy/types-bn.git":
+  version "0.0.1"
+  resolved "https://github.com/machinomy/types-bn.git#08ede69e138640d332b0dae0dc2e2fffee5f7160"
   dependencies:
-    bn.js "^4.11.7"
-    buffer "^5.0.6"
-    rlp "^2.0.0"
+    bn.js "4.11.7"
 
-types-ethereumjs-util@0xproject/types-ethereumjs-util:
-  version "0.0.6"
-  resolved "https://codeload.github.com/0xproject/types-ethereumjs-util/tar.gz/0c5058e4f9d6585f7c7c1f88939546acb14323b8"
+types-ethereumjs-util@0xProject/types-ethereumjs-util:
+  version "0.0.7"
+  resolved "https://codeload.github.com/0xProject/types-ethereumjs-util/tar.gz/72722fc605bfa7f87ec4a959956b387320479ffc"
   dependencies:
     bn.js "^4.11.7"
     buffer "^5.0.6"
     rlp "^2.0.0"
+    types-bn "https://github.com/machinomy/types-bn.git"
 
 typescript@2.4.1:
   version "2.4.1"
-- 
cgit 


From 6bdabe72b955b0a5cc613fea61b7eacee606d5a9 Mon Sep 17 00:00:00 2001
From: Brandon Millman <brandon.millman@gmail.com>
Date: Tue, 6 Feb 2018 11:48:56 -0800
Subject: Prettier

---
 packages/testnet-faucets/README.md         | 1 -
 packages/testnet-faucets/src/ts/handler.ts | 4 +++-
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/packages/testnet-faucets/README.md b/packages/testnet-faucets/README.md
index 6cd842ea6..2f6ae347f 100644
--- a/packages/testnet-faucets/README.md
+++ b/packages/testnet-faucets/README.md
@@ -90,7 +90,6 @@ Returns a JSON payload describing the state of the queues for each network. For
 
 Schedules a transaction that sends 0.1 ETH to the `recipient` on the network specified by `networkId` where `recipient` is a hex encoded Ethereum address prefixed with `0x`. If no `networkId` is provided via query parameters the faucet will default to network 42 (Kovan).
 
-
 `GET /zrx/:recipient?networkId=:networkId`
 
 Schedules a transaction that sends 0.1 ZRX to the `recipient` on the network specified by `networkId` where `recipient` is a hex encoded Ethereum address prefixed with `0x`. If no `networkId` is provided via query parameters the faucet will default to network 42 (Kovan).
diff --git a/packages/testnet-faucets/src/ts/handler.ts b/packages/testnet-faucets/src/ts/handler.ts
index 1dae8a47f..e9ced3437 100644
--- a/packages/testnet-faucets/src/ts/handler.ts
+++ b/packages/testnet-faucets/src/ts/handler.ts
@@ -54,7 +54,9 @@ export class Handler {
             res.status(503).send('QUEUE_IS_FULL');
             return;
         }
-        utils.consoleLog(`Added ${req.params.recipient} to queue: ${requestedAssetType} networkId: ${req.params.networkId}`);
+        utils.consoleLog(
+            `Added ${req.params.recipient} to queue: ${requestedAssetType} networkId: ${req.params.networkId}`,
+        );
         res.status(200).end();
     }
     private static _createProviderEngine(rpcUrl: string) {
-- 
cgit 


From 2bf1aa975afc242e49bcd19c0b57a3730e27639e Mon Sep 17 00:00:00 2001
From: Brandon Millman <brandon.millman@gmail.com>
Date: Tue, 6 Feb 2018 15:24:11 -0800
Subject: Add types-bn package to 0x.js and testnet-faucets

---
 packages/0x.js/package.json           | 1 +
 packages/testnet-faucets/package.json | 1 +
 2 files changed, 2 insertions(+)

diff --git a/packages/0x.js/package.json b/packages/0x.js/package.json
index 013b4ae6e..de18a1b2e 100644
--- a/packages/0x.js/package.json
+++ b/packages/0x.js/package.json
@@ -74,6 +74,7 @@
         "truffle-hdwallet-provider": "^0.0.3",
         "tslint": "5.8.0",
         "typedoc": "~0.8.0",
+        "types-bn": "^0.0.1",
         "typescript": "2.7.1",
         "web3-provider-engine": "^13.0.1",
         "web3-typescript-typings": "^0.9.9",
diff --git a/packages/testnet-faucets/package.json b/packages/testnet-faucets/package.json
index e38f4b6cd..9efacae0a 100644
--- a/packages/testnet-faucets/package.json
+++ b/packages/testnet-faucets/package.json
@@ -37,6 +37,7 @@
         "shx": "^0.2.2",
         "source-map-loader": "^0.1.6",
         "tslint": "5.8.0",
+        "types-bn": "^0.0.1",
         "types-ethereumjs-util": "0xProject/types-ethereumjs-util",
         "typescript": "2.7.1",
         "web3-typescript-typings": "^0.9.9",
-- 
cgit 


From f818d06b43ae9279c4ee022685e3bcb9f27ba2fd Mon Sep 17 00:00:00 2001
From: Brandon Millman <brandon.millman@gmail.com>
Date: Tue, 6 Feb 2018 15:31:12 -0800
Subject: Change rpcUrls keys back into string literals

---
 packages/testnet-faucets/src/ts/rpc_urls.ts | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/packages/testnet-faucets/src/ts/rpc_urls.ts b/packages/testnet-faucets/src/ts/rpc_urls.ts
index c57e85eac..25a3b938f 100644
--- a/packages/testnet-faucets/src/ts/rpc_urls.ts
+++ b/packages/testnet-faucets/src/ts/rpc_urls.ts
@@ -1,13 +1,13 @@
 import { configs } from './configs';
 
 const productionRpcUrls = {
-    2: `https://ropsten.infura.io/${configs.INFURA_API_KEY}`,
-    3: `https://rinkeby.infura.io/${configs.INFURA_API_KEY}`,
-    42: `https://kovan.infura.io/${configs.INFURA_API_KEY}`,
+    '2': `https://ropsten.infura.io/${configs.INFURA_API_KEY}`,
+    '3': `https://rinkeby.infura.io/${configs.INFURA_API_KEY}`,
+    '42': `https://kovan.infura.io/${configs.INFURA_API_KEY}`,
 };
 
 const developmentRpcUrls = {
-    50: 'http://127.0.0.1:8545',
+    '50': 'http://127.0.0.1:8545',
 };
 
 export const rpcUrls = configs.ENVIRONMENT === 'development' ? developmentRpcUrls : productionRpcUrls;
-- 
cgit 


From 7357a0a3243a08c9e9fe866f43de9ff38f79ddfd Mon Sep 17 00:00:00 2001
From: Brandon Millman <brandon.millman@gmail.com>
Date: Tue, 6 Feb 2018 15:38:23 -0800
Subject: Update yarn.lock

---
 yarn.lock | 9 ---------
 1 file changed, 9 deletions(-)

diff --git a/yarn.lock b/yarn.lock
index 9dc647c77..832856c62 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2,15 +2,6 @@
 # yarn lockfile v1
 
 
-"@0xproject/utils@^0.2.0":
-  version "0.2.4"
-  resolved "https://registry.yarnpkg.com/@0xproject/utils/-/utils-0.2.4.tgz#d84d0737f47730e5724a76797d30e716b587a0cf"
-  dependencies:
-    bignumber.js "~4.1.0"
-    js-sha3 "^0.7.0"
-    lodash "^4.17.4"
-    web3 "^0.20.0"
-
 "@types/accounting@^0.4.1":
   version "0.4.1"
   resolved "https://registry.yarnpkg.com/@types/accounting/-/accounting-0.4.1.tgz#865d9f5694fd7c438fba34eb4bc82eec6f34cdd5"
-- 
cgit 


From f44bfa9682544a8fc50ef9221991982fd665f9f5 Mon Sep 17 00:00:00 2001
From: Brandon Millman <brandon.millman@gmail.com>
Date: Tue, 6 Feb 2018 15:56:40 -0800
Subject: Bump subproviders version

---
 packages/testnet-faucets/package.json | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/packages/testnet-faucets/package.json b/packages/testnet-faucets/package.json
index 53c2f75e9..3f052d91f 100644
--- a/packages/testnet-faucets/package.json
+++ b/packages/testnet-faucets/package.json
@@ -17,7 +17,7 @@
     "dependencies": {
         "0x.js": "^0.32.0",
         "@0xproject/utils": "^0.3.0",
-        "@0xproject/subproviders": "^0.3.5",
+        "@0xproject/subproviders": "^0.3.6",
         "body-parser": "^1.17.1",
         "ethereumjs-tx": "^1.3.3",
         "ethereumjs-util": "^5.1.1",
-- 
cgit