src/app.js

@@ -20,13 +20,14 @@ function wait(ms){
 }
 
 var dbOption = {
-    "auth.user":"ai",
-    "auth.password":"ai@2020"
+    auth :{
+        user: 'ai',
+        password:'ai@2020'
+    }
 }
 
 DbClient.connect(dbOption).then(conn =>{   
         var database = conn.db(dbName);
-        database.auth("ai","ai@2020");       
         startService(database);
 });
 

src/handler/handler.js

@@ -281,7 +281,7 @@ const handler = {
             }
         });     
     },
-    getIssue : function getBalance(request,response){
+    getIssue : function getIssue(request,response){
         var contractAddress = request.query.contractAddress;
         var issueId = request.query.issueId;
         console.log("query issue, contractAddress:" + contractAddress + ", issueId:" + issueId);