Add CHANGELOG entries

8 files changed, 836 insertions, 0 deletions

diff --git a/packages/dev-utils/CHANGELOG.json b/packages/dev-utils/CHANGELOG.json
index 3f70a93cc..72ecdbabb 100644
--- a/packages/dev-utils/CHANGELOG.json
+++ b/packages/dev-utils/CHANGELOG.json
@@ -3,6 +3,10 @@
         "version": "0.4.2",
         "changes": [
             {
+                "note": "Pass ZeroExArtifactsAdapter to CoverageSubprovider",
+                "pr": 589
+            },
+            {
                 "note": "Move callbackErrorReporter over from 0x.js",
                 "pr": 579
             }
diff --git a/packages/sol-compiler/CHANGELOG.json b/packages/sol-compiler/CHANGELOG.json
index a1b53fb9e..35f2c6179 100644
--- a/packages/sol-compiler/CHANGELOG.json
+++ b/packages/sol-compiler/CHANGELOG.json
@@ -5,6 +5,10 @@
             {
                 "note": "Properly export the executable binary",
                 "pr": 588
+            },
+            {
+                "note": "Add a possibility to define a solidity version to use",
+                "pr": 589
             }
         ]
     },
diff --git a/packages/sol-cov/CHANGELOG.json b/packages/sol-cov/CHANGELOG.json
index 468957fe3..9c978df5a 100644
--- a/packages/sol-cov/CHANGELOG.json
+++ b/packages/sol-cov/CHANGELOG.json
@@ -1,5 +1,26 @@
 [
     {
+        "version": "0.1.0",
+        "changes": [
+            {
+                "note": "Add artifact adapter as a parameter for CoverageSubprovider. Export AbstractArtifactAdapter",
+                "pr": 589
+            },
+            {
+                "note": "Implement ZeroExArtiactAdapter and TruffleArtifactAdapter",
+                "pr": 589
+            },
+            {
+                "note": "Properly parse multi-level traces",
+                "pr": 589
+            },
+            {
+                "note": "Add support for solidity libraries",
+                "pr": 589
+            }
+        ]
+    },
+    {
         "timestamp": 1525477860,
         "version": "0.0.10",
         "changes": [
diff --git a/packages/sol-resolver/CHANGELOG.json b/packages/sol-resolver/CHANGELOG.json
index 0126fa170..eb52d85e0 100644
--- a/packages/sol-resolver/CHANGELOG.json
+++ b/packages/sol-resolver/CHANGELOG.json
@@ -1,5 +1,18 @@
 [
     {
+        "version": "0.0.5",
+        "changes": [
+            {
+                "note": "Fix a bug in FsResolver trying to read directories as files",
+                "pr": 589
+            },
+            {
+                "note": "Fix a bug in NameResolver not ignoring .sol files",
+                "pr": 589
+            }
+        ]
+    },
+    {
         "timestamp": 1525477860,
         "version": "0.0.4",
         "changes": [
diff --git a/packages/testnet-faucets/bin/server.js b/packages/testnet-faucets/bin/server.js
new file mode 100644
index 000000000..bee332843
--- /dev/null
+++ b/packages/testnet-faucets/bin/server.js
@@ -0,0 +1,780 @@
+require("source-map-support").install();
+/******/ (function(modules) { // webpackBootstrap
+/******/ 	// The module cache
+/******/ 	var installedModules = {};
+/******/
+/******/ 	// The require function
+/******/ 	function __webpack_require__(moduleId) {
+/******/
+/******/ 		// Check if module is in cache
+/******/ 		if(installedModules[moduleId]) {
+/******/ 			return installedModules[moduleId].exports;
+/******/ 		}
+/******/ 		// Create a new module (and put it into the cache)
+/******/ 		var module = installedModules[moduleId] = {
+/******/ 			i: moduleId,
+/******/ 			l: false,
+/******/ 			exports: {}
+/******/ 		};
+/******/
+/******/ 		// Execute the module function
+/******/ 		modules[moduleId].call(module.exports, module, module.exports, __webpack_require__);
+/******/
+/******/ 		// Flag the module as loaded
+/******/ 		module.l = true;
+/******/
+/******/ 		// Return the exports of the module
+/******/ 		return module.exports;
+/******/ 	}
+/******/
+/******/
+/******/ 	// expose the modules object (__webpack_modules__)
+/******/ 	__webpack_require__.m = modules;
+/******/
+/******/ 	// expose the module cache
+/******/ 	__webpack_require__.c = installedModules;
+/******/
+/******/ 	// define getter function for harmony exports
+/******/ 	__webpack_require__.d = function(exports, name, getter) {
+/******/ 		if(!__webpack_require__.o(exports, name)) {
+/******/ 			Object.defineProperty(exports, name, {
+/******/ 				configurable: false,
+/******/ 				enumerable: true,
+/******/ 				get: getter
+/******/ 			});
+/******/ 		}
+/******/ 	};
+/******/
+/******/ 	// getDefaultExport function for compatibility with non-harmony modules
+/******/ 	__webpack_require__.n = function(module) {
+/******/ 		var getter = module && module.__esModule ?
+/******/ 			function getDefault() { return module['default']; } :
+/******/ 			function getModuleExports() { return module; };
+/******/ 		__webpack_require__.d(getter, 'a', getter);
+/******/ 		return getter;
+/******/ 	};
+/******/
+/******/ 	// Object.prototype.hasOwnProperty.call
+/******/ 	__webpack_require__.o = function(object, property) { return Object.prototype.hasOwnProperty.call(object, property); };
+/******/
+/******/ 	// __webpack_public_path__
+/******/ 	__webpack_require__.p = "";
+/******/
+/******/ 	// Load entry module and return exports
+/******/ 	return __webpack_require__(__webpack_require__.s = 6);
+/******/ })
+/************************************************************************/
+/******/ ([
+/* 0 */
+/***/ (function(module, exports) {
+
+module.exports = require("@0xproject/utils");
+
+/***/ }),
+/* 1 */
+/***/ (function(module, exports, __webpack_require__) {
+
+"use strict";
+

+Object.defineProperty(exports, "__esModule", { value: true });

+exports.configs = {

+    DISPENSER_ADDRESS: process.env.DISPENSER_ADDRESS.toLowerCase(),

+    DISPENSER_PRIVATE_KEY: process.env.DISPENSER_PRIVATE_KEY,

+    ENVIRONMENT: process.env.FAUCET_ENVIRONMENT,

+    INFURA_API_KEY: process.env.INFURA_API_KEY,

+    ROLLBAR_ACCESS_KEY: process.env.FAUCET_ROLLBAR_ACCESS_KEY,

+};

+
+
+/***/ }),
+/* 2 */
+/***/ (function(module, exports) {
+
+module.exports = require("lodash");
+
+/***/ }),
+/* 3 */
+/***/ (function(module, exports, __webpack_require__) {
+
+"use strict";
+

+var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {

+    return new (P || (P = Promise))(function (resolve, reject) {

+        function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }

+        function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }

+        function step(result) { result.done ? resolve(result.value) : new P(function (resolve) { resolve(result.value); }).then(fulfilled, rejected); }

+        step((generator = generator.apply(thisArg, _arguments || [])).next());

+    });

+};

+var __generator = (this && this.__generator) || function (thisArg, body) {

+    var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t, g;

+    return g = { next: verb(0), "throw": verb(1), "return": verb(2) }, typeof Symbol === "function" && (g[Symbol.iterator] = function() { return this; }), g;

+    function verb(n) { return function (v) { return step([n, v]); }; }

+    function step(op) {

+        if (f) throw new TypeError("Generator is already executing.");

+        while (_) try {

+            if (f = 1, y && (t = y[op[0] & 2 ? "return" : op[0] ? "throw" : "next"]) && !(t = t.call(y, op[1])).done) return t;

+            if (y = 0, t) op = [0, t.value];

+            switch (op[0]) {

+                case 0: case 1: t = op; break;

+                case 4: _.label++; return { value: op[1], done: false };

+                case 5: _.label++; y = op[1]; op = [0]; continue;

+                case 7: op = _.ops.pop(); _.trys.pop(); continue;

+                default:

+                    if (!(t = _.trys, t = t.length > 0 && t[t.length - 1]) && (op[0] === 6 || op[0] === 2)) { _ = 0; continue; }

+                    if (op[0] === 3 && (!t || (op[1] > t[0] && op[1] < t[3]))) { _.label = op[1]; break; }

+                    if (op[0] === 6 && _.label < t[1]) { _.label = t[1]; t = op; break; }

+                    if (t && _.label < t[2]) { _.label = t[2]; _.ops.push(op); break; }

+                    if (t[2]) _.ops.pop();

+                    _.trys.pop(); continue;

+            }

+            op = body.call(thisArg, _);

+        } catch (e) { op = [6, e]; y = 0; } finally { f = t = 0; }

+        if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };

+    }

+};

+Object.defineProperty(exports, "__esModule", { value: true });

+var utils_1 = __webpack_require__(0);

+var rollbar = __webpack_require__(10);

+var configs_1 = __webpack_require__(1);

+exports.errorReporter = {

+    setup: function () {

+        var _this = this;

+        rollbar.init(configs_1.configs.ROLLBAR_ACCESS_KEY, {

+            environment: configs_1.configs.ENVIRONMENT,

+        });

+        rollbar.handleUncaughtExceptions(configs_1.configs.ROLLBAR_ACCESS_KEY);

+        process.on('unhandledRejection', function (err) { return __awaiter(_this, void 0, void 0, function () {

+            return __generator(this, function (_a) {

+                switch (_a.label) {

+                    case 0:

+                        utils_1.logUtils.log("Uncaught exception " + err + ". Stack: " + err.stack);

+                        return [4 /*yield*/, this.reportAsync(err)];

+                    case 1:

+                        _a.sent();

+                        process.exit(1);

+                        return [2 /*return*/];

+                }

+            });

+        }); });

+    },

+    reportAsync: function (err, req) {

+        return __awaiter(this, void 0, void 0, function () {

+            return __generator(this, function (_a) {

+                if (configs_1.configs.ENVIRONMENT === 'development') {

+                    return [2 /*return*/]; // Do not log development environment errors

+                }

+                return [2 /*return*/, new Promise(function (resolve, reject) {

+                        rollbar.handleError(err, req, function (rollbarErr) {

+                            if (rollbarErr) {

+                                utils_1.logUtils.log("Error reporting to rollbar, ignoring: " + rollbarErr);

+                                reject(rollbarErr);

+                            }

+                            else {

+                                resolve();

+                            }

+                        });

+                    })];

+            });

+        });

+    },

+    errorHandler: function () {

+        return rollbar.errorHandler(configs_1.configs.ROLLBAR_ACCESS_KEY);

+    },

+};

+
+
+/***/ }),
+/* 4 */
+/***/ (function(module, exports) {
+
+module.exports = require("0x.js");
+
+/***/ }),
+/* 5 */
+/***/ (function(module, exports, __webpack_require__) {
+
+"use strict";
+

+Object.defineProperty(exports, "__esModule", { value: true });

+var configs_1 = __webpack_require__(1);

+var productionRpcUrls = {

+    '3': "https://ropsten.infura.io/" + configs_1.configs.INFURA_API_KEY,

+    '4': "https://rinkeby.infura.io/" + configs_1.configs.INFURA_API_KEY,

+    '42': "https://kovan.infura.io/" + configs_1.configs.INFURA_API_KEY,

+};

+var developmentRpcUrls = {

+    '50': 'http://127.0.0.1:8545',

+};

+exports.rpcUrls = configs_1.configs.ENVIRONMENT === 'development' ? developmentRpcUrls : productionRpcUrls;

+
+
+/***/ }),
+/* 6 */
+/***/ (function(module, exports, __webpack_require__) {
+
+module.exports = __webpack_require__(7);
+
+
+/***/ }),
+/* 7 */
+/***/ (function(module, exports, __webpack_require__) {
+
+"use strict";
+

+Object.defineProperty(exports, "__esModule", { value: true });

+var bodyParser = __webpack_require__(8);

+var express = __webpack_require__(9);

+var error_reporter_1 = __webpack_require__(3);

+var handler_1 = __webpack_require__(11);

+var parameter_transformer_1 = __webpack_require__(18);

+// Setup the errorReporter to catch uncaught exceptions and unhandled rejections

+error_reporter_1.errorReporter.setup();

+var app = express();

+app.use(bodyParser.json()); // for parsing application/json

+app.use(function (req, res, next) {

+    res.header('Access-Control-Allow-Origin', '*');

+    res.header('Access-Control-Allow-Headers', 'Origin, X-Requested-With, Content-Type, Accept');

+    next();

+});

+var handler = new handler_1.Handler();

+app.get('/ping', function (req, res) {

+    res.status(200).send('pong');

+});

+app.get('/info', handler.getQueueInfo.bind(handler));

+app.get('/ether/:recipient', parameter_transformer_1.parameterTransformer.transform, handler.dispenseEther.bind(handler));

+app.get('/zrx/:recipient', parameter_transformer_1.parameterTransformer.transform, handler.dispenseZRX.bind(handler));

+app.get('/order/weth/:recipient', parameter_transformer_1.parameterTransformer.transform, handler.dispenseWETHOrder.bind(handler));

+app.get('/order/zrx/:recipient', parameter_transformer_1.parameterTransformer.transform, handler.dispenseZRXOrder.bind(handler));

+// Log to rollbar any errors unhandled by handlers

+app.use(error_reporter_1.errorReporter.errorHandler());

+var port = process.env.PORT || 3000;

+app.listen(port);

+
+
+/***/ }),
+/* 8 */
+/***/ (function(module, exports) {
+
+module.exports = require("body-parser");
+
+/***/ }),
+/* 9 */
+/***/ (function(module, exports) {
+
+module.exports = require("express");
+
+/***/ }),
+/* 10 */
+/***/ (function(module, exports) {
+
+module.exports = require("rollbar");
+
+/***/ }),
+/* 11 */
+/***/ (function(module, exports, __webpack_require__) {
+
+"use strict";
+

+var __assign = (this && this.__assign) || Object.assign || function(t) {

+    for (var s, i = 1, n = arguments.length; i < n; i++) {

+        s = arguments[i];

+        for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p))

+            t[p] = s[p];

+    }

+    return t;

+};

+var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {

+    return new (P || (P = Promise))(function (resolve, reject) {

+        function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }

+        function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }

+        function step(result) { result.done ? resolve(result.value) : new P(function (resolve) { resolve(result.value); }).then(fulfilled, rejected); }

+        step((generator = generator.apply(thisArg, _arguments || [])).next());

+    });

+};

+var __generator = (this && this.__generator) || function (thisArg, body) {

+    var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t, g;

+    return g = { next: verb(0), "throw": verb(1), "return": verb(2) }, typeof Symbol === "function" && (g[Symbol.iterator] = function() { return this; }), g;

+    function verb(n) { return function (v) { return step([n, v]); }; }

+    function step(op) {

+        if (f) throw new TypeError("Generator is already executing.");

+        while (_) try {

+            if (f = 1, y && (t = y[op[0] & 2 ? "return" : op[0] ? "throw" : "next"]) && !(t = t.call(y, op[1])).done) return t;

+            if (y = 0, t) op = [0, t.value];

+            switch (op[0]) {

+                case 0: case 1: t = op; break;

+                case 4: _.label++; return { value: op[1], done: false };

+                case 5: _.label++; y = op[1]; op = [0]; continue;

+                case 7: op = _.ops.pop(); _.trys.pop(); continue;

+                default:

+                    if (!(t = _.trys, t = t.length > 0 && t[t.length - 1]) && (op[0] === 6 || op[0] === 2)) { _ = 0; continue; }

+                    if (op[0] === 3 && (!t || (op[1] > t[0] && op[1] < t[3]))) { _.label = op[1]; break; }

+                    if (op[0] === 6 && _.label < t[1]) { _.label = t[1]; t = op; break; }

+                    if (t && _.label < t[2]) { _.label = t[2]; _.ops.push(op); break; }

+                    if (t[2]) _.ops.pop();

+                    _.trys.pop(); continue;

+            }

+            op = body.call(thisArg, _);

+        } catch (e) { op = [6, e]; y = 0; } finally { f = t = 0; }

+        if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };

+    }

+};

+Object.defineProperty(exports, "__esModule", { value: true });

+var _0x_js_1 = __webpack_require__(4);

+var utils_1 = __webpack_require__(0);

+var _ = __webpack_require__(2);

+var Web3 = __webpack_require__(12);

+// 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.XMLHttpRequest = undefined;

+var subproviders_1 = __webpack_require__(13);

+var ProviderEngine = __webpack_require__(14);

+var RpcSubprovider = __webpack_require__(15);

+var configs_1 = __webpack_require__(1);

+var dispatch_queue_1 = __webpack_require__(16);

+var dispense_asset_tasks_1 = __webpack_require__(17);

+var rpc_urls_1 = __webpack_require__(5);

+var RequestedAssetType;

+(function (RequestedAssetType) {

+    RequestedAssetType["ETH"] = "ETH";

+    RequestedAssetType["WETH"] = "WETH";

+    RequestedAssetType["ZRX"] = "ZRX";

+})(RequestedAssetType || (RequestedAssetType = {}));

+var FIVE_DAYS_IN_MS = 4.32e8; // TODO: make this configurable

+var Handler = /** @class */ (function () {

+    function Handler() {

+        var _this = this;

+        this._networkConfigByNetworkId = {};

+        _.forIn(rpc_urls_1.rpcUrls, function (rpcUrl, networkId) {

+            var providerObj = Handler._createProviderEngine(rpcUrl);

+            var web3 = new Web3(providerObj);

+            var zeroExConfig = {

+                networkId: +networkId,

+            };

+            var zeroEx = new _0x_js_1.ZeroEx(web3.currentProvider, zeroExConfig);

+            var dispatchQueue = new dispatch_queue_1.DispatchQueue();

+            _this._networkConfigByNetworkId[networkId] = {

+                dispatchQueue: dispatchQueue,

+                web3: web3,

+                zeroEx: zeroEx,

+            };

+        });

+    }

+    Handler._createProviderEngine = function (rpcUrl) {

+        if (_.isUndefined(configs_1.configs.DISPENSER_PRIVATE_KEY)) {

+            throw new Error('Dispenser Private key not found');

+        }

+        var engine = new ProviderEngine();

+        engine.addProvider(new subproviders_1.NonceTrackerSubprovider());

+        engine.addProvider(new subproviders_1.PrivateKeyWalletSubprovider(configs_1.configs.DISPENSER_PRIVATE_KEY));

+        engine.addProvider(new RpcSubprovider({

+            rpcUrl: rpcUrl,

+        }));

+        engine.start();

+        return engine;

+    };

+    Handler.prototype.getQueueInfo = function (req, res) {

+        var _this = this;

+        res.setHeader('Content-Type', 'application/json');

+        var queueInfo = _.mapValues(rpc_urls_1.rpcUrls, function (rpcUrl, networkId) {

+            var dispatchQueue = _this._networkConfigByNetworkId[networkId].dispatchQueue;

+            return {

+                full: dispatchQueue.isFull(),

+                size: dispatchQueue.size(),

+            };

+        });

+        var payload = JSON.stringify(queueInfo);

+        res.status(200).send(payload);

+    };

+    Handler.prototype.dispenseEther = function (req, res) {

+        this._dispenseAsset(req, res, RequestedAssetType.ETH);

+    };

+    Handler.prototype.dispenseZRX = function (req, res) {

+        this._dispenseAsset(req, res, RequestedAssetType.ZRX);

+    };

+    Handler.prototype.dispenseWETHOrder = function (req, res) {

+        return __awaiter(this, void 0, void 0, function () {

+            return __generator(this, function (_a) {

+                switch (_a.label) {

+                    case 0: return [4 /*yield*/, this._dispenseOrder(req, res, RequestedAssetType.WETH)];

+                    case 1:

+                        _a.sent();

+                        return [2 /*return*/];

+                }

+            });

+        });

+    };

+    Handler.prototype.dispenseZRXOrder = function (req, res, next) {

+        return __awaiter(this, void 0, void 0, function () {

+            return __generator(this, function (_a) {

+                switch (_a.label) {

+                    case 0: return [4 /*yield*/, this._dispenseOrder(req, res, RequestedAssetType.ZRX)];

+                    case 1:

+                        _a.sent();

+                        return [2 /*return*/];

+                }

+            });

+        });

+    };

+    Handler.prototype._dispenseAsset = function (req, res, requestedAssetType) {

+        var networkId = req.params.networkId;

+        var recipient = req.params.recipient;

+        var networkConfig = this._networkConfigByNetworkId[networkId];

+        var dispenserTask;

+        switch (requestedAssetType) {

+            case RequestedAssetType.ETH:

+                dispenserTask = dispense_asset_tasks_1.dispenseAssetTasks.dispenseEtherTask(recipient, networkConfig.web3);

+                break;

+            case RequestedAssetType.WETH:

+            case RequestedAssetType.ZRX:

+                dispenserTask = dispense_asset_tasks_1.dispenseAssetTasks.dispenseTokenTask(recipient, requestedAssetType, networkConfig.zeroEx);

+                break;

+            default:

+                throw new Error("Unsupported asset type: " + requestedAssetType);

+        }

+        var didAddToQueue = networkConfig.dispatchQueue.add(dispenserTask);

+        if (!didAddToQueue) {

+            res.status(503).send('QUEUE_IS_FULL');

+            return;

+        }

+        utils_1.logUtils.log("Added " + recipient + " to queue: " + requestedAssetType + " networkId: " + networkId);

+        res.status(200).end();

+    };

+    Handler.prototype._dispenseOrder = function (req, res, requestedAssetType) {

+        return __awaiter(this, void 0, void 0, function () {

+            var networkConfig, zeroEx, makerToken, takerTokenSymbol, takerToken, makerTokenAmount, takerTokenAmount, order, orderHash, signature, signedOrder, signedOrderHash, payload;

+            return __generator(this, function (_a) {

+                switch (_a.label) {

+                    case 0:

+                        networkConfig = _.get(this._networkConfigByNetworkId, req.params.networkId);

+                        if (_.isUndefined(networkConfig)) {

+                            res.status(400).send('UNSUPPORTED_NETWORK_ID');

+                            return [2 /*return*/];

+                        }

+                        zeroEx = networkConfig.zeroEx;

+                        res.setHeader('Content-Type', 'application/json');

+                        return [4 /*yield*/, zeroEx.tokenRegistry.getTokenBySymbolIfExistsAsync(requestedAssetType)];

+                    case 1:

+                        makerToken = _a.sent();

+                        if (_.isUndefined(makerToken)) {

+                            throw new Error("Unsupported asset type: " + requestedAssetType);

+                        }

+                        takerTokenSymbol = requestedAssetType === RequestedAssetType.WETH ? RequestedAssetType.ZRX : RequestedAssetType.WETH;

+                        return [4 /*yield*/, zeroEx.tokenRegistry.getTokenBySymbolIfExistsAsync(takerTokenSymbol)];

+                    case 2:

+                        takerToken = _a.sent();

+                        if (_.isUndefined(takerToken)) {

+                            throw new Error("Unsupported asset type: " + requestedAssetType);

+                        }

+                        makerTokenAmount = _0x_js_1.ZeroEx.toBaseUnitAmount(new utils_1.BigNumber(0.1), makerToken.decimals);

+                        takerTokenAmount = _0x_js_1.ZeroEx.toBaseUnitAmount(new utils_1.BigNumber(0.1), takerToken.decimals);

+                        order = {

+                            maker: configs_1.configs.DISPENSER_ADDRESS,

+                            taker: req.params.recipient,

+                            makerFee: new utils_1.BigNumber(0),

+                            takerFee: new utils_1.BigNumber(0),

+                            makerTokenAmount: makerTokenAmount,

+                            takerTokenAmount: takerTokenAmount,

+                            makerTokenAddress: makerToken.address,

+                            takerTokenAddress: takerToken.address,

+                            salt: _0x_js_1.ZeroEx.generatePseudoRandomSalt(),

+                            exchangeContractAddress: zeroEx.exchange.getContractAddress(),

+                            feeRecipient: _0x_js_1.ZeroEx.NULL_ADDRESS,

+                            expirationUnixTimestampSec: new utils_1.BigNumber(Date.now() + FIVE_DAYS_IN_MS),

+                        };

+                        orderHash = _0x_js_1.ZeroEx.getOrderHashHex(order);

+                        return [4 /*yield*/, zeroEx.signOrderHashAsync(orderHash, configs_1.configs.DISPENSER_ADDRESS, false)];

+                    case 3:

+                        signature = _a.sent();

+                        signedOrder = __assign({}, order, { ecSignature: signature });

+                        signedOrderHash = _0x_js_1.ZeroEx.getOrderHashHex(signedOrder);

+                        payload = JSON.stringify(signedOrder);

+                        utils_1.logUtils.log("Dispensed signed order: " + payload);

+                        res.status(200).send(payload);

+                        return [2 /*return*/];

+                }

+            });

+        });

+    };

+    return Handler;

+}());

+exports.Handler = Handler;

+
+
+/***/ }),
+/* 12 */
+/***/ (function(module, exports) {
+
+module.exports = require("web3");
+
+/***/ }),
+/* 13 */
+/***/ (function(module, exports) {
+
+module.exports = require("@0xproject/subproviders");
+
+/***/ }),
+/* 14 */
+/***/ (function(module, exports) {
+
+module.exports = require("web3-provider-engine");
+
+/***/ }),
+/* 15 */
+/***/ (function(module, exports) {
+
+module.exports = require("web3-provider-engine/subproviders/rpc");
+
+/***/ }),
+/* 16 */
+/***/ (function(module, exports, __webpack_require__) {
+
+"use strict";
+

+var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {

+    return new (P || (P = Promise))(function (resolve, reject) {

+        function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }

+        function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }

+        function step(result) { result.done ? resolve(result.value) : new P(function (resolve) { resolve(result.value); }).then(fulfilled, rejected); }

+        step((generator = generator.apply(thisArg, _arguments || [])).next());

+    });

+};

+var __generator = (this && this.__generator) || function (thisArg, body) {

+    var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t, g;

+    return g = { next: verb(0), "throw": verb(1), "return": verb(2) }, typeof Symbol === "function" && (g[Symbol.iterator] = function() { return this; }), g;

+    function verb(n) { return function (v) { return step([n, v]); }; }

+    function step(op) {

+        if (f) throw new TypeError("Generator is already executing.");

+        while (_) try {

+            if (f = 1, y && (t = y[op[0] & 2 ? "return" : op[0] ? "throw" : "next"]) && !(t = t.call(y, op[1])).done) return t;

+            if (y = 0, t) op = [0, t.value];

+            switch (op[0]) {

+                case 0: case 1: t = op; break;

+                case 4: _.label++; return { value: op[1], done: false };

+                case 5: _.label++; y = op[1]; op = [0]; continue;

+                case 7: op = _.ops.pop(); _.trys.pop(); continue;

+                default:

+                    if (!(t = _.trys, t = t.length > 0 && t[t.length - 1]) && (op[0] === 6 || op[0] === 2)) { _ = 0; continue; }

+                    if (op[0] === 3 && (!t || (op[1] > t[0] && op[1] < t[3]))) { _.label = op[1]; break; }

+                    if (op[0] === 6 && _.label < t[1]) { _.label = t[1]; t = op; break; }

+                    if (t && _.label < t[2]) { _.label = t[2]; _.ops.push(op); break; }

+                    if (t[2]) _.ops.pop();

+                    _.trys.pop(); continue;

+            }

+            op = body.call(thisArg, _);

+        } catch (e) { op = [6, e]; y = 0; } finally { f = t = 0; }

+        if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };

+    }

+};

+Object.defineProperty(exports, "__esModule", { value: true });

+var utils_1 = __webpack_require__(0);

+var _ = __webpack_require__(2);

+var error_reporter_1 = __webpack_require__(3);

+var MAX_QUEUE_SIZE = 500;

+var DEFAULT_QUEUE_INTERVAL_MS = 1000;

+var DispatchQueue = /** @class */ (function () {

+    function DispatchQueue() {

+        this._queueIntervalMs = DEFAULT_QUEUE_INTERVAL_MS;

+        this._queue = [];

+        this._start();

+    }

+    DispatchQueue.prototype.add = function (taskAsync) {

+        if (this.isFull()) {

+            return false;

+        }

+        this._queue.push(taskAsync);

+        return true;

+    };

+    DispatchQueue.prototype.size = function () {

+        return this._queue.length;

+    };

+    DispatchQueue.prototype.isFull = function () {

+        return this.size() >= MAX_QUEUE_SIZE;

+    };

+    DispatchQueue.prototype.stop = function () {

+        if (!_.isUndefined(this._queueIntervalIdIfExists)) {

+            utils_1.intervalUtils.clearAsyncExcludingInterval(this._queueIntervalIdIfExists);

+        }

+    };

+    DispatchQueue.prototype._start = function () {

+        var _this = this;

+        this._queueIntervalIdIfExists = utils_1.intervalUtils.setAsyncExcludingInterval(function () { return __awaiter(_this, void 0, void 0, function () {

+            var taskAsync;

+            return __generator(this, function (_a) {

+                switch (_a.label) {

+                    case 0:

+                        taskAsync = this._queue.shift();

+                        if (_.isUndefined(taskAsync)) {

+                            return [2 /*return*/, Promise.resolve()];

+                        }

+                        return [4 /*yield*/, taskAsync()];

+                    case 1:

+                        _a.sent();

+                        return [2 /*return*/];

+                }

+            });

+        }); }, this._queueIntervalMs, function (err) {

+            utils_1.logUtils.log("Unexpected err: " + err + " - " + JSON.stringify(err));

+            // tslint:disable-next-line:no-floating-promises

+            error_reporter_1.errorReporter.reportAsync(err);

+        });

+    };

+    return DispatchQueue;

+}());

+exports.DispatchQueue = DispatchQueue;

+
+
+/***/ }),
+/* 17 */
+/***/ (function(module, exports, __webpack_require__) {
+
+"use strict";
+

+var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {

+    return new (P || (P = Promise))(function (resolve, reject) {

+        function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }

+        function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }

+        function step(result) { result.done ? resolve(result.value) : new P(function (resolve) { resolve(result.value); }).then(fulfilled, rejected); }

+        step((generator = generator.apply(thisArg, _arguments || [])).next());

+    });

+};

+var __generator = (this && this.__generator) || function (thisArg, body) {

+    var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t, g;

+    return g = { next: verb(0), "throw": verb(1), "return": verb(2) }, typeof Symbol === "function" && (g[Symbol.iterator] = function() { return this; }), g;

+    function verb(n) { return function (v) { return step([n, v]); }; }

+    function step(op) {

+        if (f) throw new TypeError("Generator is already executing.");

+        while (_) try {

+            if (f = 1, y && (t = y[op[0] & 2 ? "return" : op[0] ? "throw" : "next"]) && !(t = t.call(y, op[1])).done) return t;

+            if (y = 0, t) op = [0, t.value];

+            switch (op[0]) {

+                case 0: case 1: t = op; break;

+                case 4: _.label++; return { value: op[1], done: false };

+                case 5: _.label++; y = op[1]; op = [0]; continue;

+                case 7: op = _.ops.pop(); _.trys.pop(); continue;

+                default:

+                    if (!(t = _.trys, t = t.length > 0 && t[t.length - 1]) && (op[0] === 6 || op[0] === 2)) { _ = 0; continue; }

+                    if (op[0] === 3 && (!t || (op[1] > t[0] && op[1] < t[3]))) { _.label = op[1]; break; }

+                    if (op[0] === 6 && _.label < t[1]) { _.label = t[1]; t = op; break; }

+                    if (t && _.label < t[2]) { _.label = t[2]; _.ops.push(op); break; }

+                    if (t[2]) _.ops.pop();

+                    _.trys.pop(); continue;

+            }

+            op = body.call(thisArg, _);

+        } catch (e) { op = [6, e]; y = 0; } finally { f = t = 0; }

+        if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };

+    }

+};

+Object.defineProperty(exports, "__esModule", { value: true });

+var _0x_js_1 = __webpack_require__(4);

+var utils_1 = __webpack_require__(0);

+var _ = __webpack_require__(2);

+var configs_1 = __webpack_require__(1);

+var DISPENSE_AMOUNT_ETHER = 0.1;

+var DISPENSE_AMOUNT_TOKEN = 0.1;

+var DISPENSE_MAX_AMOUNT_TOKEN = 2;

+var DISPENSE_MAX_AMOUNT_ETHER = 2;

+exports.dispenseAssetTasks = {

+    dispenseEtherTask: function (recipientAddress, web3) {

+        var _this = this;

+        return function () { return __awaiter(_this, void 0, void 0, function () {

+            var userBalance, maxAmountInWei, sendTransactionAsync, txHash;

+            return __generator(this, function (_a) {

+                switch (_a.label) {

+                    case 0:

+                        utils_1.logUtils.log("Processing ETH " + recipientAddress);

+                        return [4 /*yield*/, utils_1.promisify(web3.eth.getBalance)(recipientAddress)];

+                    case 1:

+                        userBalance = _a.sent();

+                        maxAmountInWei = new utils_1.BigNumber(web3.toWei(DISPENSE_MAX_AMOUNT_ETHER, 'ether'));

+                        if (userBalance.greaterThanOrEqualTo(maxAmountInWei)) {

+                            utils_1.logUtils.log("User exceeded ETH balance maximum (" + maxAmountInWei + ") " + recipientAddress + " " + userBalance + " ");

+                            return [2 /*return*/];

+                        }

+                        sendTransactionAsync = utils_1.promisify(web3.eth.sendTransaction);

+                        return [4 /*yield*/, sendTransactionAsync({

+                                from: configs_1.configs.DISPENSER_ADDRESS,

+                                to: recipientAddress,

+                                value: web3.toWei(DISPENSE_AMOUNT_ETHER, 'ether'),

+                            })];

+                    case 2:

+                        txHash = _a.sent();

+                        utils_1.logUtils.log("Sent " + DISPENSE_AMOUNT_ETHER + " ETH to " + recipientAddress + " tx: " + txHash);

+                        return [2 /*return*/];

+                }

+            });

+        }); };

+    },

+    dispenseTokenTask: function (recipientAddress, tokenSymbol, zeroEx) {

+        var _this = this;

+        return function () { return __awaiter(_this, void 0, void 0, function () {

+            var amountToDispense, token, baseUnitAmount, userBalanceBaseUnits, maxAmountBaseUnits, txHash;

+            return __generator(this, function (_a) {

+                switch (_a.label) {

+                    case 0:

+                        utils_1.logUtils.log("Processing " + tokenSymbol + " " + recipientAddress);

+                        amountToDispense = new utils_1.BigNumber(DISPENSE_AMOUNT_TOKEN);

+                        return [4 /*yield*/, zeroEx.tokenRegistry.getTokenBySymbolIfExistsAsync(tokenSymbol)];

+                    case 1:

+                        token = _a.sent();

+                        if (_.isUndefined(token)) {

+                            throw new Error("Unsupported asset type: " + tokenSymbol);

+                        }

+                        baseUnitAmount = _0x_js_1.ZeroEx.toBaseUnitAmount(amountToDispense, token.decimals);

+                        return [4 /*yield*/, zeroEx.token.getBalanceAsync(token.address, recipientAddress)];

+                    case 2:

+                        userBalanceBaseUnits = _a.sent();

+                        maxAmountBaseUnits = _0x_js_1.ZeroEx.toBaseUnitAmount(new utils_1.BigNumber(DISPENSE_MAX_AMOUNT_TOKEN), token.decimals);

+                        if (userBalanceBaseUnits.greaterThanOrEqualTo(maxAmountBaseUnits)) {

+                            utils_1.logUtils.log("User exceeded token balance maximum (" + maxAmountBaseUnits + ") " + recipientAddress + " " + userBalanceBaseUnits + " ");

+                            return [2 /*return*/];

+                        }

+                        return [4 /*yield*/, zeroEx.token.transferAsync(token.address, configs_1.configs.DISPENSER_ADDRESS, recipientAddress, baseUnitAmount)];

+                    case 3:

+                        txHash = _a.sent();

+                        utils_1.logUtils.log("Sent " + amountToDispense + " ZRX to " + recipientAddress + " tx: " + txHash);

+                        return [2 /*return*/];

+                }

+            });

+        }); };

+    },

+};

+
+
+/***/ }),
+/* 18 */
+/***/ (function(module, exports, __webpack_require__) {
+
+"use strict";
+

+Object.defineProperty(exports, "__esModule", { value: true });

+var utils_1 = __webpack_require__(0);

+var _ = __webpack_require__(2);

+var rpc_urls_1 = __webpack_require__(5);

+var DEFAULT_NETWORK_ID = 42; // kovan

+exports.parameterTransformer = {

+    transform: function (req, res, next) {

+        var recipientAddress = req.params.recipient;

+        if (_.isUndefined(recipientAddress) || !utils_1.addressUtils.isAddress(recipientAddress)) {

+            res.status(400).send('INVALID_RECIPIENT_ADDRESS');

+            return;

+        }

+        var lowerCaseRecipientAddress = recipientAddress.toLowerCase();

+        req.params.recipient = lowerCaseRecipientAddress;

+        var networkId = _.get(req.query, 'networkId', DEFAULT_NETWORK_ID);

+        var rpcUrlIfExists = _.get(rpc_urls_1.rpcUrls, networkId);

+        if (_.isUndefined(rpcUrlIfExists)) {

+            res.status(400).send('UNSUPPORTED_NETWORK_ID');

+            return;

+        }

+        req.params.networkId = networkId;

+        next();

+    },

+};

+
+
+/***/ })
+/******/ ]);
+//# sourceMappingURL=server.js.map
\ No newline at end of file
diff --git a/packages/testnet-faucets/bin/server.js.map b/packages/testnet-faucets/bin/server.js.map
new file mode 100644
index 000000000..c8c227727
--- /dev/null
+++ b/packages/testnet-faucets/bin/server.js.map
@@ -0,0 +1 @@
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b91d2cee364b5e101d43","module.exports = require(\"@0xproject/utils\");\n\n\n//////////////////\n// WEBPACK FOOTER\n// external \"@0xproject/utils\"\n// module id = 0\n// module chunks = 0","export const configs = {\n    DISPENSER_ADDRESS: (process.env.DISPENSER_ADDRESS as string).toLowerCase(),\n    DISPENSER_PRIVATE_KEY: process.env.DISPENSER_PRIVATE_KEY,\n    ENVIRONMENT: process.env.FAUCET_ENVIRONMENT,\n    INFURA_API_KEY: process.env.INFURA_API_KEY,\n    ROLLBAR_ACCESS_KEY: process.env.FAUCET_ROLLBAR_ACCESS_KEY,\n};\n\n\n\n// WEBPACK FOOTER //\n// ./src/ts/configs.ts","module.exports = require(\"lodash\");\n\n\n//////////////////\n// WEBPACK FOOTER\n// external \"lodash\"\n// module id = 2\n// module chunks = 0","import { logUtils } from '@0xproject/utils';\nimport * as express from 'express';\nimport rollbar = require('rollbar');\n\nimport { configs } from './configs';\n\nexport const errorReporter = {\n    setup() {\n        rollbar.init(configs.ROLLBAR_ACCESS_KEY, {\n            environment: configs.ENVIRONMENT,\n        });\n        rollbar.handleUncaughtExceptions(configs.ROLLBAR_ACCESS_KEY);\n        process.on('unhandledRejection', async (err: Error) => {\n            logUtils.log(`Uncaught exception ${err}. Stack: ${err.stack}`);\n            await this.reportAsync(err);\n            process.exit(1);\n        });\n    },\n    async reportAsync(err: Error, req?: express.Request): Promise<any> {\n        if (configs.ENVIRONMENT === 'development') {\n            return; // Do not log development environment errors\n        }\n        return new Promise((resolve, reject) => {\n            rollbar.handleError(err, req, (rollbarErr: Error) => {\n                if (rollbarErr) {\n                    logUtils.log(`Error reporting to rollbar, ignoring: ${rollbarErr}`);\n                    reject(rollbarErr);\n                } else {\n                    resolve();\n                }\n            });\n        });\n    },\n    errorHandler() {\n        return rollbar.errorHandler(configs.ROLLBAR_ACCESS_KEY);\n    },\n};\n\n\n\n// WEBPACK FOOTER //\n// ./src/ts/error_reporter.ts","module.exports = require(\"0x.js\");\n\n\n//////////////////\n// WEBPACK FOOTER\n// external \"0x.js\"\n// module id = 4\n// module chunks = 0","import { configs } from './configs';\n\nconst productionRpcUrls = {\n    '3': `https://ropsten.infura.io/${configs.INFURA_API_KEY}`,\n    '4': `https://rinkeby.infura.io/${configs.INFURA_API_KEY}`,\n    '42': `https://kovan.infura.io/${configs.INFURA_API_KEY}`,\n};\n\nconst developmentRpcUrls = {\n    '50': 'http://127.0.0.1:8545',\n};\n\nexport const rpcUrls = configs.ENVIRONMENT === 'development' ? developmentRpcUrls : productionRpcUrls;\n\n\n\n// WEBPACK FOOTER //\n// ./src/ts/rpc_urls.ts","import * as bodyParser from 'body-parser';\nimport * as express from 'express';\n\nimport { errorReporter } from './error_reporter';\nimport { Handler } from './handler';\nimport { parameterTransformer } from './parameter_transformer';\n\n// Setup the errorReporter to catch uncaught exceptions and unhandled rejections\nerrorReporter.setup();\n\nconst app = express();\napp.use(bodyParser.json()); // for parsing application/json\napp.use((req, res, next) => {\n    res.header('Access-Control-Allow-Origin', '*');\n    res.header('Access-Control-Allow-Headers', 'Origin, X-Requested-With, Content-Type, Accept');\n    next();\n});\n\nconst handler = new Handler();\napp.get('/ping', (req: express.Request, res: express.Response) => {\n    res.status(200).send('pong');\n});\napp.get('/info', handler.getQueueInfo.bind(handler));\napp.get('/ether/:recipient', parameterTransformer.transform, handler.dispenseEther.bind(handler));\napp.get('/zrx/:recipient', parameterTransformer.transform, handler.dispenseZRX.bind(handler));\napp.get('/order/weth/:recipient', parameterTransformer.transform, handler.dispenseWETHOrder.bind(handler));\napp.get('/order/zrx/:recipient', parameterTransformer.transform, handler.dispenseZRXOrder.bind(handler));\n\n// Log to rollbar any errors unhandled by handlers\napp.use(errorReporter.errorHandler());\nconst port = process.env.PORT || 3000;\napp.listen(port);\n\n\n\n// WEBPACK FOOTER //\n// ./src/ts/server.ts","module.exports = require(\"body-parser\");\n\n\n//////////////////\n// WEBPACK FOOTER\n// external \"body-parser\"\n// module id = 8\n// module chunks = 0","module.exports = require(\"express\");\n\n\n//////////////////\n// WEBPACK FOOTER\n// external \"express\"\n// module id = 9\n// module chunks = 0","module.exports = require(\"rollbar\");\n\n\n//////////////////\n// WEBPACK FOOTER\n// external \"rollbar\"\n// module id = 10\n// module chunks = 0","import { Order, SignedOrder, ZeroEx } from '0x.js';\nimport { BigNumber, logUtils } from '@0xproject/utils';\nimport * as express from 'express';\nimport * as _ from 'lodash';\nimport * as Web3 from 'web3';\n\n// HACK: web3 injects XMLHttpRequest into the global scope and ProviderEngine checks XMLHttpRequest\n// to know whether it is running in a browser or node environment. We need it to be undefined since\n// we are not running in a browser env.\n// Filed issue: https://github.com/ethereum/web3.js/issues/844\n(global as any).XMLHttpRequest = undefined;\nimport { NonceTrackerSubprovider, PrivateKeyWalletSubprovider } from '@0xproject/subproviders';\nimport ProviderEngine = require('web3-provider-engine');\nimport RpcSubprovider = require('web3-provider-engine/subproviders/rpc');\n\nimport { configs } from './configs';\nimport { DispatchQueue } from './dispatch_queue';\nimport { dispenseAssetTasks } from './dispense_asset_tasks';\nimport { rpcUrls } from './rpc_urls';\n\ninterface NetworkConfig {\n    dispatchQueue: DispatchQueue;\n    web3: Web3;\n    zeroEx: ZeroEx;\n}\n\ninterface ItemByNetworkId<T> {\n    [networkId: string]: T;\n}\n\nenum RequestedAssetType {\n    ETH = 'ETH',\n    WETH = 'WETH',\n    ZRX = 'ZRX',\n}\n\nconst FIVE_DAYS_IN_MS = 4.32e8; // TODO: make this configurable\n\nexport class Handler {\n    private _networkConfigByNetworkId: ItemByNetworkId<NetworkConfig> = {};\n    private static _createProviderEngine(rpcUrl: string) {\n        if (_.isUndefined(configs.DISPENSER_PRIVATE_KEY)) {\n            throw new Error('Dispenser Private key not found');\n        }\n        const engine = new ProviderEngine();\n        engine.addProvider(new NonceTrackerSubprovider());\n        engine.addProvider(new PrivateKeyWalletSubprovider(configs.DISPENSER_PRIVATE_KEY));\n        engine.addProvider(\n            new RpcSubprovider({\n                rpcUrl,\n            }),\n        );\n        engine.start();\n        return engine;\n    }\n    constructor() {\n        _.forIn(rpcUrls, (rpcUrl: string, networkId: string) => {\n            const providerObj = Handler._createProviderEngine(rpcUrl);\n            const web3 = new Web3(providerObj);\n            const zeroExConfig = {\n                networkId: +networkId,\n            };\n            const zeroEx = new ZeroEx(web3.currentProvider, zeroExConfig);\n            const dispatchQueue = new DispatchQueue();\n            this._networkConfigByNetworkId[networkId] = {\n                dispatchQueue,\n                web3,\n                zeroEx,\n            };\n        });\n    }\n    public getQueueInfo(req: express.Request, res: express.Response) {\n        res.setHeader('Content-Type', 'application/json');\n        const queueInfo = _.mapValues(rpcUrls, (rpcUrl: string, networkId: string) => {\n            const dispatchQueue = this._networkConfigByNetworkId[networkId].dispatchQueue;\n            return {\n                full: dispatchQueue.isFull(),\n                size: dispatchQueue.size(),\n            };\n        });\n        const payload = JSON.stringify(queueInfo);\n        res.status(200).send(payload);\n    }\n    public dispenseEther(req: express.Request, res: express.Response) {\n        this._dispenseAsset(req, res, RequestedAssetType.ETH);\n    }\n    public dispenseZRX(req: express.Request, res: express.Response) {\n        this._dispenseAsset(req, res, RequestedAssetType.ZRX);\n    }\n    public async dispenseWETHOrder(req: express.Request, res: express.Response) {\n        await this._dispenseOrder(req, res, RequestedAssetType.WETH);\n    }\n    public async dispenseZRXOrder(req: express.Request, res: express.Response, next: express.NextFunction) {\n        await this._dispenseOrder(req, res, RequestedAssetType.ZRX);\n    }\n    private _dispenseAsset(req: express.Request, res: express.Response, requestedAssetType: RequestedAssetType) {\n        const networkId = req.params.networkId;\n        const recipient = req.params.recipient;\n        const networkConfig = this._networkConfigByNetworkId[networkId];\n        let dispenserTask;\n        switch (requestedAssetType) {\n            case RequestedAssetType.ETH:\n                dispenserTask = dispenseAssetTasks.dispenseEtherTask(recipient, networkConfig.web3);\n                break;\n            case RequestedAssetType.WETH:\n            case RequestedAssetType.ZRX:\n                dispenserTask = dispenseAssetTasks.dispenseTokenTask(\n                    recipient,\n                    requestedAssetType,\n                    networkConfig.zeroEx,\n                );\n                break;\n            default:\n                throw new Error(`Unsupported asset type: ${requestedAssetType}`);\n        }\n        const didAddToQueue = networkConfig.dispatchQueue.add(dispenserTask);\n        if (!didAddToQueue) {\n            res.status(503).send('QUEUE_IS_FULL');\n            return;\n        }\n        logUtils.log(`Added ${recipient} to queue: ${requestedAssetType} networkId: ${networkId}`);\n        res.status(200).end();\n    }\n    private async _dispenseOrder(req: express.Request, res: express.Response, requestedAssetType: RequestedAssetType) {\n        const networkConfig = _.get(this._networkConfigByNetworkId, req.params.networkId);\n        if (_.isUndefined(networkConfig)) {\n            res.status(400).send('UNSUPPORTED_NETWORK_ID');\n            return;\n        }\n        const zeroEx = networkConfig.zeroEx;\n        res.setHeader('Content-Type', 'application/json');\n        const makerToken = await zeroEx.tokenRegistry.getTokenBySymbolIfExistsAsync(requestedAssetType);\n        if (_.isUndefined(makerToken)) {\n            throw new Error(`Unsupported asset type: ${requestedAssetType}`);\n        }\n        const takerTokenSymbol =\n            requestedAssetType === RequestedAssetType.WETH ? RequestedAssetType.ZRX : RequestedAssetType.WETH;\n        const takerToken = await zeroEx.tokenRegistry.getTokenBySymbolIfExistsAsync(takerTokenSymbol);\n        if (_.isUndefined(takerToken)) {\n            throw new Error(`Unsupported asset type: ${requestedAssetType}`);\n        }\n        const makerTokenAmount = ZeroEx.toBaseUnitAmount(new BigNumber(0.1), makerToken.decimals);\n        const takerTokenAmount = ZeroEx.toBaseUnitAmount(new BigNumber(0.1), takerToken.decimals);\n        const order: Order = {\n            maker: configs.DISPENSER_ADDRESS,\n            taker: req.params.recipient,\n            makerFee: new BigNumber(0),\n            takerFee: new BigNumber(0),\n            makerTokenAmount,\n            takerTokenAmount,\n            makerTokenAddress: makerToken.address,\n            takerTokenAddress: takerToken.address,\n            salt: ZeroEx.generatePseudoRandomSalt(),\n            exchangeContractAddress: zeroEx.exchange.getContractAddress(),\n            feeRecipient: ZeroEx.NULL_ADDRESS,\n            expirationUnixTimestampSec: new BigNumber(Date.now() + FIVE_DAYS_IN_MS),\n        };\n        const orderHash = ZeroEx.getOrderHashHex(order);\n        const signature = await zeroEx.signOrderHashAsync(orderHash, configs.DISPENSER_ADDRESS, false);\n        const signedOrder = {\n            ...order,\n            ecSignature: signature,\n        };\n        const signedOrderHash = ZeroEx.getOrderHashHex(signedOrder);\n        const payload = JSON.stringify(signedOrder);\n        logUtils.log(`Dispensed signed order: ${payload}`);\n        res.status(200).send(payload);\n    }\n}\n\n\n\n// WEBPACK FOOTER //\n// ./src/ts/handler.ts","module.exports = require(\"web3\");\n\n\n//////////////////\n// WEBPACK FOOTER\n// external \"web3\"\n// module id = 12\n// module chunks = 0","module.exports = require(\"@0xproject/subproviders\");\n\n\n//////////////////\n// WEBPACK FOOTER\n// external \"@0xproject/subproviders\"\n// module id = 13\n// module chunks = 0","module.exports = require(\"web3-provider-engine\");\n\n\n//////////////////\n// WEBPACK FOOTER\n// external \"web3-provider-engine\"\n// module id = 14\n// module chunks = 0","module.exports = require(\"web3-provider-engine/subproviders/rpc\");\n\n\n//////////////////\n// WEBPACK FOOTER\n// external \"web3-provider-engine/subproviders/rpc\"\n// module id = 15\n// module chunks = 0","import { intervalUtils, logUtils } from '@0xproject/utils';\nimport * as _ from 'lodash';\n\nimport { errorReporter } from './error_reporter';\n\nconst MAX_QUEUE_SIZE = 500;\nconst DEFAULT_QUEUE_INTERVAL_MS = 1000;\n\nexport class DispatchQueue {\n    private _queueIntervalMs: number;\n    private _queue: Array<() => Promise<void>>;\n    private _queueIntervalIdIfExists?: NodeJS.Timer;\n    constructor() {\n        this._queueIntervalMs = DEFAULT_QUEUE_INTERVAL_MS;\n        this._queue = [];\n        this._start();\n    }\n    public add(taskAsync: () => Promise<void>): boolean {\n        if (this.isFull()) {\n            return false;\n        }\n        this._queue.push(taskAsync);\n        return true;\n    }\n    public size(): number {\n        return this._queue.length;\n    }\n    public isFull(): boolean {\n        return this.size() >= MAX_QUEUE_SIZE;\n    }\n    public stop() {\n        if (!_.isUndefined(this._queueIntervalIdIfExists)) {\n            intervalUtils.clearAsyncExcludingInterval(this._queueIntervalIdIfExists);\n        }\n    }\n    private _start() {\n        this._queueIntervalIdIfExists = intervalUtils.setAsyncExcludingInterval(\n            async () => {\n                const taskAsync = this._queue.shift();\n                if (_.isUndefined(taskAsync)) {\n                    return Promise.resolve();\n                }\n                await taskAsync();\n            },\n            this._queueIntervalMs,\n            (err: Error) => {\n                logUtils.log(`Unexpected err: ${err} - ${JSON.stringify(err)}`);\n                // tslint:disable-next-line:no-floating-promises\n                errorReporter.reportAsync(err);\n            },\n        );\n    }\n}\n\n\n\n// WEBPACK FOOTER //\n// ./src/ts/dispatch_queue.ts","import { ZeroEx } from '0x.js';\nimport { BigNumber, logUtils, promisify } from '@0xproject/utils';\nimport * as _ from 'lodash';\nimport * as Web3 from 'web3';\n\nimport { configs } from './configs';\nimport { errorReporter } from './error_reporter';\n\nconst DISPENSE_AMOUNT_ETHER = 0.1;\nconst DISPENSE_AMOUNT_TOKEN = 0.1;\nconst DISPENSE_MAX_AMOUNT_TOKEN = 2;\nconst DISPENSE_MAX_AMOUNT_ETHER = 2;\n\nexport const dispenseAssetTasks = {\n    dispenseEtherTask(recipientAddress: string, web3: Web3) {\n        return async () => {\n            logUtils.log(`Processing ETH ${recipientAddress}`);\n            const userBalance = await promisify<BigNumber>(web3.eth.getBalance)(recipientAddress);\n            const maxAmountInWei = new BigNumber(web3.toWei(DISPENSE_MAX_AMOUNT_ETHER, 'ether'));\n            if (userBalance.greaterThanOrEqualTo(maxAmountInWei)) {\n                logUtils.log(\n                    `User exceeded ETH balance maximum (${maxAmountInWei}) ${recipientAddress} ${userBalance} `,\n                );\n                return;\n            }\n            const sendTransactionAsync = promisify(web3.eth.sendTransaction);\n            const txHash = await sendTransactionAsync({\n                from: configs.DISPENSER_ADDRESS,\n                to: recipientAddress,\n                value: web3.toWei(DISPENSE_AMOUNT_ETHER, 'ether'),\n            });\n            logUtils.log(`Sent ${DISPENSE_AMOUNT_ETHER} ETH to ${recipientAddress} tx: ${txHash}`);\n        };\n    },\n    dispenseTokenTask(recipientAddress: string, tokenSymbol: string, zeroEx: ZeroEx) {\n        return async () => {\n            logUtils.log(`Processing ${tokenSymbol} ${recipientAddress}`);\n            const amountToDispense = new BigNumber(DISPENSE_AMOUNT_TOKEN);\n            const token = await zeroEx.tokenRegistry.getTokenBySymbolIfExistsAsync(tokenSymbol);\n            if (_.isUndefined(token)) {\n                throw new Error(`Unsupported asset type: ${tokenSymbol}`);\n            }\n            const baseUnitAmount = ZeroEx.toBaseUnitAmount(amountToDispense, token.decimals);\n            const userBalanceBaseUnits = await zeroEx.token.getBalanceAsync(token.address, recipientAddress);\n            const maxAmountBaseUnits = ZeroEx.toBaseUnitAmount(\n                new BigNumber(DISPENSE_MAX_AMOUNT_TOKEN),\n                token.decimals,\n            );\n            if (userBalanceBaseUnits.greaterThanOrEqualTo(maxAmountBaseUnits)) {\n                logUtils.log(\n                    `User exceeded token balance maximum (${maxAmountBaseUnits}) ${recipientAddress} ${userBalanceBaseUnits} `,\n                );\n                return;\n            }\n            const txHash = await zeroEx.token.transferAsync(\n                token.address,\n                configs.DISPENSER_ADDRESS,\n                recipientAddress,\n                baseUnitAmount,\n            );\n            logUtils.log(`Sent ${amountToDispense} ZRX to ${recipientAddress} tx: ${txHash}`);\n        };\n    },\n};\n\n\n\n// WEBPACK FOOTER //\n// ./src/ts/dispense_asset_tasks.ts","import { addressUtils } from '@0xproject/utils';\nimport { NextFunction, Request, Response } from 'express';\nimport * as _ from 'lodash';\n\nimport { configs } from './configs';\nimport { rpcUrls } from './rpc_urls';\n\nconst DEFAULT_NETWORK_ID = 42; // kovan\n\nexport const parameterTransformer = {\n    transform(req: Request, res: Response, next: NextFunction) {\n        const recipientAddress = req.params.recipient;\n        if (_.isUndefined(recipientAddress) || !addressUtils.isAddress(recipientAddress)) {\n            res.status(400).send('INVALID_RECIPIENT_ADDRESS');\n            return;\n        }\n        const lowerCaseRecipientAddress = recipientAddress.toLowerCase();\n        req.params.recipient = lowerCaseRecipientAddress;\n        const networkId = _.get(req.query, 'networkId', DEFAULT_NETWORK_ID);\n        const rpcUrlIfExists = _.get(rpcUrls, networkId);\n        if (_.isUndefined(rpcUrlIfExists)) {\n            res.status(400).send('UNSUPPORTED_NETWORK_ID');\n            return;\n        }\n        req.params.networkId = networkId;\n        next();\n    },\n};\n\n\n\n// WEBPACK FOOTER //\n// ./src/ts/parameter_transformer.ts"],"sourceRoot":""}
\ No newline at end of file
diff --git a/packages/types/CHANGELOG.json b/packages/types/CHANGELOG.json
index afcfd862c..aef14fead 100644
--- a/packages/types/CHANGELOG.json
+++ b/packages/types/CHANGELOG.json
@@ -3,6 +3,10 @@
         "version": "0.7.0",
         "changes": [
             {
+                "note": "Make OpCode type an enum",
+                "pr": 589
+            },
+            {
                 "note":
                     "Moved ExchangeContractErrs, DoneCallback, Token, OrderRelevantState, OrderStateValid, OrderStateInvalid, OrderState, OrderAddresses and OrderValues types from 0x.js",
                 "pr": 579
diff --git a/packages/utils/CHANGELOG.json b/packages/utils/CHANGELOG.json
index d3c7da7b9..f447bdd1c 100644
--- a/packages/utils/CHANGELOG.json
+++ b/packages/utils/CHANGELOG.json
@@ -1,5 +1,14 @@
 [
     {
+        "version": "0.7.0",
+        "changes": [
+            {
+                "note": "Add logUtils.warn",
+                "pr": 589
+            }
+        ]
+    },
+    {
         "timestamp": 1525477860,
         "version": "0.6.1",
         "changes": [