3 files changed, 5 insertions, 5 deletions
diff --git a/packages/kovan-faucets/src/ts/configs.ts b/packages/kovan-faucets/src/ts/configs.ts
index 697e7522b..2e5a7f64d 100644
--- a/packages/kovan-faucets/src/ts/configs.ts
+++ b/packages/kovan-faucets/src/ts/configs.ts
@@ -1,5 +1,5 @@
 export const configs = {
-    DISPENSER_ADDRESS: process.env.DISPENSER_ADDRESS.toLowerCase(),
+    DISPENSER_ADDRESS: (process.env.DISPENSER_ADDRESS as string).toLowerCase(),
     DISPENSER_PRIVATE_KEY: process.env.DISPENSER_PRIVATE_KEY,
     ENVIRONMENT: process.env.FAUCET_ENVIRONMENT,
     ROLLBAR_ACCESS_KEY: process.env.FAUCET_ROLLBAR_ACCESS_KEY,
diff --git a/packages/kovan-faucets/src/ts/id_management.ts b/packages/kovan-faucets/src/ts/id_management.ts
index 74865afb8..930821172 100644
--- a/packages/kovan-faucets/src/ts/id_management.ts
+++ b/packages/kovan-faucets/src/ts/id_management.ts
@@ -3,7 +3,7 @@ import EthereumTx = require('ethereumjs-tx');
 import { configs } from './configs';
 import { utils } from './utils';
 
-type Callback = (err: Error, accounts: any) => void;
+type Callback = (err: Error | null, accounts: any) => void;
 
 export const idManagement = {
     getAccounts(callback: Callback) {
@@ -15,7 +15,7 @@ export const idManagement = {
     },
     signTransaction(txData: object, callback: Callback) {
         const tx = new EthereumTx(txData);
-        const privateKeyBuffer = new Buffer(configs.DISPENSER_PRIVATE_KEY, 'hex');
+        const privateKeyBuffer = new Buffer(configs.DISPENSER_PRIVATE_KEY as string, 'hex');
         tx.sign(privateKeyBuffer);
         const rawTx = `0x${tx.serialize().toString('hex')}`;
         callback(null, rawTx);
diff --git a/packages/kovan-faucets/src/ts/request_queue.ts b/packages/kovan-faucets/src/ts/request_queue.ts
index ea3eee18e..2b42ca4bf 100644
--- a/packages/kovan-faucets/src/ts/request_queue.ts
+++ b/packages/kovan-faucets/src/ts/request_queue.ts
@@ -38,10 +38,10 @@ export class RequestQueue {
     }
     protected start() {
         this.queueIntervalId = timers.setInterval(() => {
-            if (this.queue.length === 0) {
+            const recipientAddress = this.queue.shift();
+            if (_.isUndefined(recipientAddress)) {
                 return;
             }
-            const recipientAddress = this.queue.shift();
             // tslint:disable-next-line:no-floating-promises
             this.processNextRequestFireAndForgetAsync(recipientAddress);
         }, this.queueIntervalMs);