4 files changed, 18 insertions, 9 deletions
diff --git a/packages/testnet-faucets/src/ts/constants.ts b/packages/testnet-faucets/src/ts/constants.ts
new file mode 100644
index 000000000..c6370e3f6
--- /dev/null
+++ b/packages/testnet-faucets/src/ts/constants.ts
@@ -0,0 +1,5 @@
+export const constants = {
+    SUCCESS_STATUS: 200,
+    SERVICE_UNAVAILABLE_STATUS: 503,
+    BAD_REQUEST_STATUS: 400,
+};
diff --git a/packages/testnet-faucets/src/ts/handler.ts b/packages/testnet-faucets/src/ts/handler.ts
index 3858b5339..d5f0dc2f9 100644
--- a/packages/testnet-faucets/src/ts/handler.ts
+++ b/packages/testnet-faucets/src/ts/handler.ts
@@ -15,6 +15,7 @@ import ProviderEngine = require('web3-provider-engine');
 import RpcSubprovider = require('web3-provider-engine/subproviders/rpc');
 
 import { configs } from './configs';
+import { constants } from './constants';
 import { DispatchQueue } from './dispatch_queue';
 import { dispenseAssetTasks } from './dispense_asset_tasks';
 import { rpcUrls } from './rpc_urls';
@@ -80,7 +81,7 @@ export class Handler {
             };
         });
         const payload = JSON.stringify(queueInfo);
-        res.status(200).send(payload);
+        res.status(constants.SUCCESS_STATUS).send(payload);
     }
     public dispenseEther(req: express.Request, res: express.Response): void {
         this._dispenseAsset(req, res, RequestedAssetType.ETH);
@@ -120,11 +121,11 @@ export class Handler {
         }
         const didAddToQueue = networkConfig.dispatchQueue.add(dispenserTask);
         if (!didAddToQueue) {
-            res.status(503).send('QUEUE_IS_FULL');
+            res.status(constants.SERVICE_UNAVAILABLE_STATUS).send('QUEUE_IS_FULL');
             return;
         }
         logUtils.log(`Added ${recipient} to queue: ${requestedAssetType} networkId: ${networkId}`);
-        res.status(200).end();
+        res.status(constants.SUCCESS_STATUS).end();
     }
     private async _dispenseOrderAsync(
         req: express.Request,
@@ -133,7 +134,7 @@ export class Handler {
     ): Promise<void> {
         const networkConfig = _.get(this._networkConfigByNetworkId, req.params.networkId);
         if (_.isUndefined(networkConfig)) {
-            res.status(400).send('UNSUPPORTED_NETWORK_ID');
+            res.status(constants.BAD_REQUEST_STATUS).send('UNSUPPORTED_NETWORK_ID');
             return;
         }
         const zeroEx = networkConfig.zeroEx;
@@ -173,6 +174,6 @@ export class Handler {
         const signedOrderHash = ZeroEx.getOrderHashHex(signedOrder);
         const payload = JSON.stringify(signedOrder);
         logUtils.log(`Dispensed signed order: ${payload}`);
-        res.status(200).send(payload);
+        res.status(constants.SUCCESS_STATUS).send(payload);
     }
 }
diff --git a/packages/testnet-faucets/src/ts/parameter_transformer.ts b/packages/testnet-faucets/src/ts/parameter_transformer.ts
index 58bf154dc..b9929a0d9 100644
--- a/packages/testnet-faucets/src/ts/parameter_transformer.ts
+++ b/packages/testnet-faucets/src/ts/parameter_transformer.ts
@@ -3,6 +3,7 @@ import { NextFunction, Request, Response } from 'express';
 import * as _ from 'lodash';
 
 import { configs } from './configs';
+import { constants } from './constants';
 import { rpcUrls } from './rpc_urls';
 
 const DEFAULT_NETWORK_ID = 42; // kovan
@@ -11,7 +12,7 @@ export const parameterTransformer = {
     transform(req: Request, res: Response, next: NextFunction): void {
         const recipientAddress = req.params.recipient;
         if (_.isUndefined(recipientAddress) || !addressUtils.isAddress(recipientAddress)) {
-            res.status(400).send('INVALID_RECIPIENT_ADDRESS');
+            res.status(constants.BAD_REQUEST_STATUS).send('INVALID_RECIPIENT_ADDRESS');
             return;
         }
         const lowerCaseRecipientAddress = recipientAddress.toLowerCase();
@@ -19,7 +20,7 @@ export const parameterTransformer = {
         const networkId = _.get(req.query, 'networkId', DEFAULT_NETWORK_ID);
         const rpcUrlIfExists = _.get(rpcUrls, networkId);
         if (_.isUndefined(rpcUrlIfExists)) {
-            res.status(400).send('UNSUPPORTED_NETWORK_ID');
+            res.status(constants.BAD_REQUEST_STATUS).send('UNSUPPORTED_NETWORK_ID');
             return;
         }
         req.params.networkId = networkId;
diff --git a/packages/testnet-faucets/src/ts/server.ts b/packages/testnet-faucets/src/ts/server.ts
index 198a5fdc9..55c1d55d8 100644
--- a/packages/testnet-faucets/src/ts/server.ts
+++ b/packages/testnet-faucets/src/ts/server.ts
@@ -1,6 +1,7 @@
 import * as bodyParser from 'body-parser';
 import * as express from 'express';
 
+import { constants } from './constants';
 import { errorReporter } from './error_reporter';
 import { Handler } from './handler';
 import { parameterTransformer } from './parameter_transformer';
@@ -18,7 +19,7 @@ app.use((req, res, next) => {
 
 const handler = new Handler();
 app.get('/ping', (req: express.Request, res: express.Response) => {
-    res.status(200).send('pong');
+    res.status(constants.SUCCESS_STATUS).send('pong');
 });
 app.get('/info', handler.getQueueInfo.bind(handler));
 app.get('/ether/:recipient', parameterTransformer.transform, handler.dispenseEther.bind(handler));
@@ -28,5 +29,6 @@ app.get('/order/zrx/:recipient', parameterTransformer.transform, handler.dispens
 
 // Log to rollbar any errors unhandled by handlers
 app.use(errorReporter.errorHandler());
-const port = process.env.PORT || 3000;
+const DEFAULT_PORT = 3000;
+const port = process.env.PORT || DEFAULT_PORT;
 app.listen(port);