fix(server): server.listen is not awaited so errors can't be handled …

…in higher level

server.listen should be awaited such that higher level code can handle occuring errors.
server.listen should be non-blocking anyway

src/microservice/transport/provider/grpc/index.ts

@@ -76,11 +76,12 @@ export class Server {
         // credentials = grpc.credentials.createSsl(
         //   this.config.credentials.ssl.certs);
       }
-      new Promise((resolve, reject) => {
-        this.server.listen(this.config.addr, credentials).then(resolve).catch(err => {
-          this.logger.error('Error starting server', { message: err.message, code: err.code, stack: err.stack });
-          reject(err);
-        });
+      await this.server.listen(
+        this.config.addr,
+        credentials
+      ).catch(err => {
+        this.logger.error('Error starting server', { message: err.message, code: err.code, stack: err.stack });
+        throw err;
       });
       this.isBound = true;
     }

test/cfg/config.json

@@ -2,7 +2,7 @@
   "logger": {
     "console": {
       "handleExceptions": false,
-      "level": "info",
+      "level": "error",
       "colorize": true,
       "prettyPrint": true
     }