From c348d715ad39294920af155af10b6b5ac8e9633a Mon Sep 17 00:00:00 2001
From: YING WANG <42584020+yingwang-us@users.noreply.github.com>
Date: Thu, 30 Jul 2020 20:19:27 -0400
Subject: [PATCH] Fix unhandled exception (#541)

* fix: UnhandledPromiseRejectionWarning: Unhandled promise rejection

* update
---
 app/mongo/mongoClient.js | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/app/mongo/mongoClient.js b/app/mongo/mongoClient.js
index 9ce1201ea..595763082 100644
--- a/app/mongo/mongoClient.js
+++ b/app/mongo/mongoClient.js
@@ -98,9 +98,14 @@ module.exports = class MongoClient {
     const db = await this._clientConnect();
     for(let i=0; i<viewsToCreate.length;i++){
       let view = viewsToCreate[i];
-      let v=await db.createCollection(view.name, {viewOn: view.source, pipeline: view.pipeline, collation: view.options });
-      this.log.info(`Created new View ${view.name}`);
-      result.push(v);
+      try {
+        // catch the exception for views
+        let v=await db.createCollection(view.name, {viewOn: view.source, pipeline: view.pipeline, collation: view.options });
+        this.log.info(`Created new View ${view.name}`);
+        result.push(v);
+      } catch (e) {
+        this.log.warn(e);
+      }
     }
     return result;
   }