AWS SDK hell... help!

Hi guys,

(if you think this question belongs on AWS forum, please let me know)

I am not trying to do anything fancy, just a simple query on an existing table. All the permissions are open. I can make queries against this table in Python, but in Unity... the debugger seems to skip over all client.*Async calls.

Now, the cognito portion is fine as it sets the datasets.
With Dynamodb, it works ONCE right after I create a new cognito user pool. The second time around, the debugger steps right over the client.QueryAsync(...) call, as if it's not even there.


I am using unity 5.3.3f1 and AWS aws-sdk-unity_3.1.95.0.

So much said, here is the code:

Code (CSharp):

1.  
2. using UnityEngine;
3. using System.Collections;
4. using System;
5. using Amazon;
6. using Amazon.DynamoDBv2;
7. using Amazon.DynamoDBv2.DataModel;
8. using Amazon.DynamoDBv2.DocumentModel;
9.  
10. using System.Collections.Generic;
11. using Amazon.CognitoIdentity;
12. using Amazon.DynamoDBv2.Model;
13. using Amazon.Util;
14. using Amazon.Runtime;
15.  
16. using System.Text;
17.  
18. public class QuestionManager : MonoBehaviour
19. {
20.     public int limit = 5;
21.     public string content;
22.     public GameObject Cognito;
23.     private IAmazonDynamoDB client;
24.  
25.     private DynamoDBContext Context;
26.     private AWSCognitoSync cognitoSync;
27.     private CognitoAWSCredentials cred;
28.     public string resultText;
29.  
30.     public void qInit()
31.     {
32.  
33.         cred = cognitoSync.Credentials;
34.         client = new AmazonDynamoDBClient(cred, RegionEndpoint.USEast1);
35.         Context = new DynamoDBContext(client);
36.         GetQuestions("Music");
37.     }
38.  
39.  
40.     public void GetQuestions(string category)
41.     {
42.         QueryRequest request = new QueryRequest();
43.         request.TableName = "Questions3";
44.         request.Limit = 10;
45.         request.ReturnConsumedCapacity = "TOTAL";
46.  
47.        
48.         request.KeyConditionExpression = "category = :v_id";
49.         request.ExpressionAttributeValues = new Dictionary<string, AttributeValue> {
50.         {
51.           ":v_Id", new AttributeValue {
52.             S = category
53.           }
54.         }
55.         };
56.  
57.         client.QueryAsync(request, (result) =>
58.         {
59.  
60.             if (result.Exception != null)
61.             {
62.                 Debug.Log("Failed to Query");
63.             }
64.  
65.             Debug.Log("Entered QuerySync");
66.             resultText = string.Format("No. of reads used (by query in FindRepliesForAThreadSpecifyLimit) {0}\n",
67.                                              result.Response.ConsumedCapacity.CapacityUnits);
68.             Debug.Log("resultText ---->" + resultText);
69.  
70.  
71.             foreach (var item in result.Response.Items)
72.             {
73.                 Debug.Log(item);
74.             }
75.         });
76.    }
77. }
78.  
79.  
80.  

Any thoughts would be appreciated....

 

ok, found the issue.

Posting for the next guy who goes nuts over a non-issue...

The problem was... that the GameObject the Cognito was attached to was being destroyed as I loaded the next level...

Solution: Added a script to the Cognito GameObject to preserve it from one scene to another.

Here is the code:

Code (CSharp):

1. using UnityEngine;
2.  
3. public class DontDestroyOnLoad : MonoBehaviour {
4.  
5.     public void Awake()
6.     {
7.         MonoBehaviour.DontDestroyOnLoad(this);
8.     }
9. }