Trying to get courses scan to work

services/db.js

@@ -25,6 +25,8 @@ const scan = async (tableName) => {
   const res = await dynamoClient.scan({
     TableName: tableName
   }).promise();
+
+  return res && res.Item;
 };
 
 const queryByID = async (tableName, idKeyName, id) => {
@@ -62,6 +64,7 @@ module.exports = {
   client: dynamoClient,
   create,
   get,
+  scan,
   queryByID,
   update
 };