refactor: adjust code after updated dependencies

Closes #39

src/cli.ts

@@ -13,13 +13,14 @@
  * You should have received a copy of the GNU Affero General Public License
  * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
+import {Logger} from '@openstapps/logger';
 import * as http from 'http';
 import {app} from './app';
-import {logger} from './common';
 
 /**
  * Get port from environment and store in Express.
  */
+// tslint:disable-next-line: strict-boolean-expressions
 const port = normalizePort(process.env.PORT || '3000');
 // TODO: Can we remove that? It doesn't look like it is read at all.
 app.set('port', port);
@@ -58,23 +59,24 @@ function normalizePort(value: string) {
 /**
  * Event listener for HTTP server "error" event.
  */
-function onError(error: Error | any) {
+// tslint:disable-next-line: completed-docs
+async function onError(error: { code: string; syscall: string; }) {
   if (error.syscall !== 'listen') {
     throw error;
   }
 
   const bind = typeof port === 'string'
-    ? 'Pipe ' + port
-    : 'Port ' + port;
+    ? `Pipe ${port}`
+    : `Port ${port}`;
 
   // handle specific listen errors with friendly messages
   switch (error.code) {
     case 'EACCES':
-      logger.error(bind + ' requires elevated privileges');
+      await Logger.error(`${bind} requires elevated privileges`);
       process.exit(1);
       break;
     case 'EADDRINUSE':
-      logger.error(bind + ' is already in use');
+      await Logger.error(`${bind} is already in use`);
       process.exit(1);
       break;
     default:
@@ -88,7 +90,7 @@ function onError(error: Error | any) {
 function onListening() {
   const addr = server.address();
   const bind = typeof addr === 'string'
-    ? 'pipe ' + addr
-    : 'port ' + addr.port;
-  logger.ok('Listening on ' + bind);
+    ? `pipe  ${addr}`
+    : `port ${addr.port}`;
+  Logger.ok(`Listening on ${bind}`);
 }