/// Accessor for a specific entry in the database
/// @param primaryKey the key used to lookup the entry in the database
protected async Task <DatabaseItem> GetEntryByKey(string primaryKey)
{
var getRequest = new GetItemRequest
{
TableName = tableName,
Key = new Dictionary <string, AttributeValue>
{
{ primaryPartitionKey, new AttributeValue {
S = primaryKey
} }
}
};
DatabaseItem item = new DatabaseItem();
try
{
var response = await client.GetItemAsync(getRequest);
if (response.IsItemSet)
{
item = response.Item;
}
}
catch (Exception e)
{
log.WARN("DatabaseClient", "GetEntryByKey(string)", "EXCEPTION: " + e.Message);
}
return(item);
}
private async Task <SkillResponse> BuildMorningReportResponseAsync()
{
var response = await _dynamoClient.GetItemAsync(_dynamoTable, new Dictionary <string, AttributeValue> {
["Key"] = new AttributeValue {
S = MorningReportInfo.ROW_KEY
}
});
AttributeValue value = null;
if ((response.HttpStatusCode != HttpStatusCode.OK) || !response.Item.TryGetValue("Value", out value))
{
return(BuildSpeechResponse(PROMPT_ERROR_MORNING_REPORT));
}
var morningReport = MorningReportInfo.FromJson(value.S);
return(new SkillResponse {
Version = "1.0",
Response = new ResponseBody {
OutputSpeech = new SsmlOutputSpeech {
Ssml = morningReport.ConvertContentsToSsml(_preHeadingBreak, _postHeadingBreak, _bulletBreak)
},
ShouldEndSession = true
}
});
}
public async Task <WorkflowInstance> GetWorkflowInstance(string Id)
{
var req = new GetItemRequest()
{
TableName = $"{_tablePrefix}-{WORKFLOW_TABLE}",
Key = new Dictionary <string, AttributeValue>
{
{ "id", new AttributeValue(Id) }
}
};
var response = await _client.GetItemAsync(req);
return(response.Item.ToWorkflowInstance());
}
public async Task <APIGatewayProxyResponse> GetNotepad(APIGatewayProxyRequest req, ILambdaContext context)
{
var request = new GetItemRequest
{
TableName = tableName,
Key = new Dictionary <string, AttributeValue>()
{
{ "Id", new AttributeValue {
N = $"{req.QueryStringParameters["Id"]}"
} }
}
};
var response = await client.GetItemAsync(request);
return(new APIGatewayProxyResponse {
StatusCode = (int)HttpStatusCode.OK,
Body = JsonSerializer.Serialize(ParseToNotepadObject(response.Item)),
Headers = new Dictionary <string, string>
{
{ "Content-Type", "application/json" },
{ "Control-Access-Allow-Origin", "*" }
}
});
}
public bool TryGetSong(int songId, out Song song)
{
try
{
var key = new Dictionary <string, AttributeValue> {
{ "SongId", new AttributeValue {
N = songId.ToString()
} }
};
var response = _db.GetItemAsync("Songs", key).Result;
if (response.IsItemSet)
{
var songRef = Guid.Parse(response.Item["SongRef"].S);
var artist = response.Item["Artist"].S;
var album = response.Item["Album"].S;
var title = response.Item["Title"].S;
var track = int.Parse(response.Item["Track"].N);
var filePath = response.Item["FilePath"].S;
song = new Song(songId, songRef, artist, album, title, track, filePath);
return(true);
}
}
catch (Exception e)
{
throw new Exception($"Failed to fetch song (SongId={songId}) from DynamoDb.", e);
}
song = null;
return(false);
}
public static async Task GetItemAsync()
{
#region service_client_get
using (var ddbClient = new AmazonDynamoDBClient())
{
var request = new GetItemRequest
{
TableName = "TODOList",
Key = new Dictionary <string, AttributeValue>
{
{ "User", new AttributeValue {
S = "serviceclient-testuser"
} },
{ "ListId", new AttributeValue {
S = "generated-list-id"
} }
}
};
var response = await ddbClient.GetItemAsync(request);
if (response.Item.Count > 0)
{
Dictionary <string, AttributeValue> item = response.Item;
Console.WriteLine($"List Name {response.Item["Name"].S}");
PrintItem(item);
}
else
{
Console.WriteLine("TODO List item not found");
}
}
#endregion
}
public async Task <Workflow> GetCurrentStateAsync(string orchestrationId)
{
var getItemRequest = new GetItemRequest();
getItemRequest.TableName = Constants.LAMBDA_BIZ_DYNAMODB_TABLE;
getItemRequest.Key = new Dictionary <string, AttributeValue>();
getItemRequest.Key.Add(Constants.LAMBDA_BIZ_ORCHESTRATION_ID, new AttributeValue
{
S = orchestrationId
});
var getItemResponse = await _amazonDynamoDbClient.GetItemAsync(getItemRequest);
var attributes = getItemResponse.Item[Constants.LAMBDA_BIZ_WF_ATTRIBUTES];
var workflow = JsonConvert.DeserializeObject <Workflow>(attributes.S);
workflow.Activities = new List <Activity>();
foreach (var attribute in getItemResponse.Item)
{
if (attribute.Key != Constants.LAMBDA_BIZ_WF_ATTRIBUTES &&
attribute.Key != Constants.LAMBDA_BIZ_ORCHESTRATION_ID)
{
(workflow.Activities as IList <Activity>).Add(JsonConvert.DeserializeObject <Activity>(attribute.Value.S));
}
}
return(workflow);
}
private string GetContentFromDynamoDb(string key)
{
string content = string.Empty;
try
{
AmazonDynamoDBConfig clientConfig = new AmazonDynamoDBConfig();
clientConfig.RegionEndpoint = RegionEndpoint.USEast1;
AmazonDynamoDBClient client = new AmazonDynamoDBClient(clientConfig);
GetItemRequest request = new GetItemRequest();
request.TableName = TABLE_NAME;
request.Key = new Dictionary <string, AttributeValue>();
request.Key.Add("ContentKey", new AttributeValue()
{
S = key
});
var response = client.GetItemAsync(request);
if (response.Result.HttpStatusCode == HttpStatusCode.OK)
{
var item = response.Result.Item;
content = item["Content"].S;
}
}
catch (Exception ex)
{
throw ex;
}
return(content);
}
public Contract Get(string contractId)
{
SetupDatabase();
var request = new GetItemRequest()
{
TableName = ContractTableName,
Key = new Dictionary <string, AttributeValue>()
{
{ "ContractId", new AttributeValue()
{
S = contractId
} }
}
};
var result = DbClient.GetItemAsync(request);
result.Wait();
if (result.IsCompletedSuccessfully)
{
var contract = GetContract(result.Result.Item);
var assetProvider = new AssetProvider(DbClient);
contract.Assets = assetProvider.GetAssets(contract.ContractId);
return(contract);
}
throw new ApplicationException("Error reading Contract information", result.Exception);
}
public async Task <APIGatewayProxyResponse> RunAsync(APIGatewayProxyRequest request)
{
using (var client = new AmazonDynamoDBClient(Amazon.RegionEndpoint.USEast1))
{
var requestId = request.PathParameters["requestId"];
var attributeDictionary = new Dictionary <string, AttributeValue> {
{ "RequestId", new AttributeValue(requestId) }
};
var getItem = new GetItemRequest("ChangeRequest", attributeDictionary);
var response = await client.GetItemAsync(getItem);
var headers = new Dictionary <string, string>
{
{ "Access-Control-Allow-Origin", "*" }
};
if (response == null || response.Item.Count == 0)
{
return(new APIGatewayProxyResponse {
StatusCode = (int)HttpStatusCode.NotFound, Headers = headers
});
}
var item = DeserializeChangeRequest(response);
var result = JsonConvert.SerializeObject(item, new JsonSerializerSettings {
ContractResolver = new CamelCasePropertyNamesContractResolver()
});
return(new APIGatewayProxyResponse {
StatusCode = (int)HttpStatusCode.OK, Headers = headers, Body = result
});
}
}
/// <summary>
/// Read an entry from a DynamoDB table
/// </summary>
/// <typeparam name="TResult">The result type</typeparam>
/// <param name="tableName">The name of the table to search for the entry</param>
/// <param name="keys">The table entry keys to search for</param>
/// <param name="resolver">Function that will be called to translate the returned fields into a concrete type. This Function is only called if the result is != null</param>
/// <returns>The object translated by the resolver function</returns>
public async Task <TResult> ReadSingleEntryAsync <TResult>(string tableName, Dictionary <string, AttributeValue> keys, Func <Dictionary <string, AttributeValue>, TResult> resolver) where TResult : class
{
try
{
var request = new GetItemRequest
{
TableName = tableName,
Key = keys,
ConsistentRead = true
};
var response = await ddbClient.GetItemAsync(request);
if (response.IsItemSet)
{
return(resolver(response.Item));
}
else
{
return(null);
}
}
catch (Exception)
{
if (Logger.IsVerbose)
{
Logger.Verbose("Unable to find table entry for Keys = {0}", Utils.DictionaryToString(keys));
}
throw;
}
}
private string GetFact(int factId)
{
var request = new GetItemRequest {
TableName = _tableName,
Key = new Dictionary <string, AttributeValue>()
{
{
"Id", new AttributeValue()
{
N = factId.ToString()
}
}
}
};
var task = _dynamoClient.GetItemAsync(request);
task.Wait();
AttributeValue fact;
if (task.Result.Item.TryGetValue("Fact", out fact))
{
LambdaLogger.Log($"INFO: Fact returned from database was #{factId}: {fact.S}");
return(fact.S);
}
else
{
// GetFact();
return("Sorry, could not retrieve a fact");
}
}
public async Task <GetItemResponse> GetKey(string order)
{
var orderModel = JsonConvert.DeserializeObject <OrderModel>(order);
var store = new DynamoDataStore(_client);
//// Construct the key //
var key = orderModel.OrderId + "_" + orderModel.Email;
try
{
var request = new GetItemRequest
{
TableName = OrderTableName,
Key = new Dictionary <string, AttributeValue>()
{
{ OrderIdKey, new AttributeValue {
S = key
} }
},
};
return(await _client.GetItemAsync(request));
}
catch (Exception ex)
{
throw;
}
return(null);
}
public static async Task ServiceClientExampleAsync()
{
try
{
var client = new AmazonDynamoDBClient(RegionEndpoint.USWest2);
var request = new GetItemRequest
{
TableName = "RetailDatabase",
Key = new Dictionary <string, AttributeValue>
{
{ "pk", new AttributeValue {
S = "*****@*****.**"
} },
{ "sk", new AttributeValue {
S = "metadata"
} }
}
};
var response = await client.GetItemAsync(request);
Console.WriteLine($"Item retrieved with {response.Item.Count} attributes.");
}
catch (Exception e)
{
Console.Error.WriteLine(e.Message);
}
}
/// <summary>
/// Return the table contents
/// </summary>
/// <param name="tableName">Table Name</param>
/// <param name="isDocumentModelType"> true for Document Model and false for Local Mode</param>
/// <returns>Array of Values</returns>
public Document[] FuncReadTable(string tableName, bool isDocumentModelType)
{
if (isDocumentModelType)
{
try
{
Table table = Table.LoadTable(client, tableName);
ScanFilter scanFilter = new ScanFilter();
Search getAllItems = table.Scan(scanFilter);
Document[] allItems = getAllItems.GetRemainingAsync().Result.ToArray();
return(allItems);
}
catch (Exception)
{
return(null);
}
}
else
{
Dictionary <string, AttributeValue> dictObj = new Dictionary <string, AttributeValue>
{
{ "1", null }
};
try
{
System.Threading.Tasks.Task <GetItemResponse> request = client.GetItemAsync(tableName, dictObj);
}
catch (Exception)
{
}
return(null);
}
}
public static async void RetrieveItem(AmazonDynamoDBClient client, string partitionKey, string sortKey)
{
var request = new GetItemRequest
{
TableName = _tableName,
Key = new Dictionary <string, AttributeValue>()
{
{ "Id", new AttributeValue {
S = partitionKey
} },
{ "ReplyDateTime", new AttributeValue {
S = sortKey
} }
},
ConsistentRead = true
};
var response = await client.GetItemAsync(request);
// Check the response.
var attributeList = response.Item; // attribute list in the response.
Console.WriteLine("\nPrinting item after retrieving it ............");
PrintItem(attributeList);
}
public async Task <string> FunctionHandler(APIGatewayProxyRequest input, ILambdaContext context)
{
string coinSymbol = "";
string testVariable = null;
Table table = Table.LoadTable(client, tableName);
Dictionary <string, string> queryStrings = (Dictionary <string, string>)input.QueryStringParameters;
if (queryStrings != null)
{
queryStrings.TryGetValue("coinName", out coinSymbol);
}
else
{
if (testVariable != null)
{
coinSymbol = testVariable;
}
coinSymbol = "bitcoin";
}
GetItemResponse response = await client.GetItemAsync(tableName, new Dictionary <string, AttributeValue>
{
{ "id", new AttributeValue {
S = coinSymbol
} }
});
Document doc = Document.FromAttributeMap(response.Item);
Coin coin = JsonConvert.DeserializeObject <Coin>(doc.ToJson());
return(JsonConvert.SerializeObject(coin));
}
private async void GetItem()
{
AmazonDynamoDBClient client = new AmazonDynamoDBClient(awsCredentials, awsRegion);
Dictionary <string, AttributeValue> key = new Dictionary <string, AttributeValue>
{
{ "Id", new AttributeValue {
N = "10"
} }
};
GetItemRequest request = new GetItemRequest
{
TableName = "Books",
Key = key,
};
var result = await client.GetItemAsync(request);
Console.WriteLine("Item:");
Dictionary <string, AttributeValue> item = result.Item;
foreach (var keyValuePair in item)
{
Console.WriteLine("Author := {0}", item["Author"]);
Console.WriteLine("Title := {0}", item["Title"]);
Console.WriteLine("Price:= {0}", item["Price"]);
Console.WriteLine("PageCount := {0}", item["PageCount"]);
}
}
public static T ReadData <T>(string id)
{
using (var client = new AmazonDynamoDBClient(accessKey, privateKey, RegionEndpoint.USEast1))
{
var name = typeof(T).Name;
var primaryKey = name + "ID";
var request = new GetItemRequest
{
TableName = name,
Key = new Dictionary <string, AttributeValue>()
{
{ primaryKey, new AttributeValue {
S = id
} }
},
};
var asyncResult = client.GetItemAsync(request);
while (!asyncResult.IsCompleted)
{
Thread.Sleep(200);
}
if (asyncResult.IsFaulted)
{
throw asyncResult.Exception;
}
var response = asyncResult.Result;
var output = (T)Activator.CreateInstance(typeof(T));
foreach (var property in typeof(T).GetProperties())
{
if (response.Item.ContainsKey(property.Name))
{
var value = response.Item[property.Name];
if (property.PropertyType == typeof(string) && value.S != null)
{
property.SetValue(output, value.S);
}
else if (property.PropertyType == typeof(DateTime) && value.S != null)
{
property.SetValue(output, value.S);
}
else if (property.PropertyType == typeof(Guid) && value.S != null)
{
property.SetValue(output, value.S);
}
else if (value.IsMSet && value.N != default(string))
{
property.SetValue(output, value.N);
}
else if (value.IsBOOLSet)
{
property.SetValue(output, value.B);
}
}
}
return(output);
}
}
public async Task <string> GetItemAsync(string pk, string sk)
{
using var client = new AmazonDynamoDBClient();
var key = GetKey(pk, sk);
var getItemRequest = new GetItemRequest(TABLE_NAME, key);
var getItemResponse = await client.GetItemAsync(getItemRequest);
return(getItemResponse.Item["data"].S);
}
public async Task <Team> GetAsync(string id, CancellationToken cancellationToken)
{
cancellationToken.ThrowIfCancellationRequested();
GetItemRequest getItem = DynamoDbParser.GetGetItemRequest(id);
GetItemResponse responseItem = await client.GetItemAsync(getItem, cancellationToken);
return(DynamoDbParser.GetTeam(responseItem));
}
/// <summary>
/// A simple function that takes a string and does a ToUpper
/// </summary>
/// <param name="input"></param>
/// <param name="context"></param>
/// <returns></returns>
public string FunctionHandler(Models.Topic input, ILambdaContext context)
{
if (input == null || string.IsNullOrWhiteSpace(input.TopicId))
{
throw new ArgumentNullException("Input required");
}
var key = new Dictionary <string, AttributeValue>();
key.Add("id", new AttributeValue()
{
S = input.TopicId
});
var dynamoDbClient = new AmazonDynamoDBClient(RegionEndpoint.APSoutheast1);
var item = dynamoDbClient.GetItemAsync("Topics", key).Result.Item;
var topicName = item.GetValueOrDefault("name").S;
var topicArn = item.GetValueOrDefault("arn").S;
var messages = item.GetValueOrDefault("messages")?.SS;
var message = string.Empty;
if (messages != null && messages.Count > 0)
{
if (messages.Count > 1)
{
var random = new Random();
var randomIndex = random.Next(0, messages.Count - 1);
message = messages[randomIndex];
}
else
{
message = messages[0];
}
}
else
{
return("failed");
}
var snsClient = new AmazonSimpleNotificationServiceClient(RegionEndpoint.APSoutheast1);
var publishRequest = new PublishRequest();
publishRequest.Message = message;
publishRequest.Subject = $"AWSUGID Test Email Notification [Topic: {topicName}]";
publishRequest.TopicArn = topicArn;
var publishResponse = snsClient.PublishAsync(publishRequest).Result;
if (publishResponse.HttpStatusCode != HttpStatusCode.OK)
{
throw new TestDonkeyException(publishResponse.HttpStatusCode.ToString());
}
return("success");
}
/// <summary>
/// A simple function that takes a string and does a ToUpper
/// </summary>
/// <param name="input"></param>
/// <param name="context"></param>
/// <returns></returns>
public async Task <IEnumerable <PostRecord> > FunctionHandler(PostRequestEvent input, ILambdaContext context)
{
var recordId = input.RecordId;
var tableName = Environment.GetEnvironmentVariable("DB_TABLE_NAME");
using (var dynamoDb = new AmazonDynamoDBClient())
{
var fieldsToRetrieve = new List <string> {
"id", "text", "voice", "status", "url"
};
if (recordId == "*")
{
var results = await dynamoDb.ScanAsync(tableName, fieldsToRetrieve);
return(results.Items.Select(d =>
{
var record = new PostRecord
{
Id = d["id"].S,
Text = d["text"].S,
Voice = d["voice"].S,
Status = d["status"].S,
Url = d["url"].S
};
return record;
}).ToList());
}
else
{
var result = await dynamoDb.GetItemAsync(tableName,
new Dictionary <string, AttributeValue>
{
{ "id", new AttributeValue {
S = recordId
} }
}
);
var record = new PostRecord
{
Id = result.Item["id"].S,
Text = result.Item["text"].S,
Voice = result.Item["voice"].S,
Status = result.Item["status"].S,
Url = result.Item["url"].S
};
return(new[] { record });
}
}
}
/// <summary>
/// Get an item from the 'users' table.
/// </summary>
/// <param name="id">The id of the table (User.Id)</param>
/// <param name="projection">The projection to be used, e.g., "AccessorId,UserInfo.LastName"</param>
/// <returns></returns>
public Task <GetItemResponse> GetItem(Guid id, string projection = null)
{
var request = new GetItemRequest
{
TableName = Meta.TableName.User,
Key = GetKey(id),
ProjectionExpression = projection,
};
return(client.GetItemAsync(request));
}
public async Task <T> GetItemAsync <T>(string pk, string sk)
{
using var client = new AmazonDynamoDBClient();
var key = GetKey(pk, sk);
var getItemRequest = new GetItemRequest(TABLE_NAME, key);
var getItemResponse = await client.GetItemAsync(getItemRequest);
var item = JsonSerializer.Deserialize <T>(getItemResponse.Item["data"].S);
return(item);
}
/**
* Add a new country or update an existing one.
*/
public static async Task <bool> UpdateCountry(AmazonDynamoDBClient dbClient, string loggedInUserId, Country country)
{
Debug.Untested();
Debug.AssertValid(dbClient);
Debug.AssertID(loggedInUserId);
Debug.Assert(Helper.IsValidCountryCode(country.Code));
Debug.Assert(country.Currencies.Count > 0);
// Check that the system is not locked.
await SystemHelper.CheckSystemNotLocked(dbClient);
// Get the existing country
bool created = false;
Dictionary <string, AttributeValue> key = new Dictionary <string, AttributeValue>();
key.Add(FIELD_COUNTRIES_CODE, new AttributeValue(country.Code));
GetItemResponse getResponse = await dbClient.GetItemAsync(DATASET_COUNTRIES, key);
Debug.AssertValid(getResponse);
Debug.AssertValidOrNull(getResponse.Item);
if (getResponse.Item != null)
{
// The country exists so update it.
Dictionary <string, AttributeValueUpdate> attributeUpdates = new Dictionary <string, AttributeValueUpdate>();
attributeUpdates.Add(FIELD_COUNTRIES_NAME, new AttributeValueUpdate(new AttributeValue(country.Name), AttributeAction.PUT));
attributeUpdates.Add(FIELD_COUNTRIES_CURRENCIES, new AttributeValueUpdate(new AttributeValue(country.Currencies), AttributeAction.PUT));
attributeUpdates.Add(FIELD_COUNTRIES_AVAILABLE, new AttributeValueUpdate(new AttributeValue {
BOOL = country.Available
}, AttributeAction.PUT));
UpdateItemResponse updateResponse = await dbClient.UpdateItemAsync(DATASET_COUNTRIES, key, attributeUpdates);
Debug.AssertValid(updateResponse);
//??++CHECK RESPONSE?
}
else
{
// The country does not exist so create it.
Dictionary <string, AttributeValue> item = new Dictionary <string, AttributeValue>();
item.Add(FIELD_COUNTRIES_CODE, new AttributeValue(country.Code));
item.Add(FIELD_COUNTRIES_NAME, new AttributeValue(country.Name));
item.Add(FIELD_COUNTRIES_CURRENCIES, new AttributeValue(country.Currencies));
item.Add(FIELD_COUNTRIES_AVAILABLE, new AttributeValue {
BOOL = country.Available
});
PutItemResponse putResponse = await dbClient.PutItemAsync(DATASET_COUNTRIES, item);
Debug.AssertValid(putResponse);
//??++CHECK RESPONSE?
created = true;
}
AddCountryAudit(dbClient, loggedInUserId, CountryAuditRecord.AuditChangeType.create, country);
return(created);
}
public async static Task <bool> ItemExists(string key)
{
var response = await dbClient.GetItemAsync(
tableName : clientTableName,
key : new Dictionary <string, AttributeValue>
{
{ "ClientID", new AttributeValue {
S = key
} }
});
Client client = new Client();
try
{
client.ClientID = response.Item["ClientID"].S.ToString();
}
catch { return(false); }
return(true);
}
private string GetContentFromFile(string key)
{
string filename = string.Empty;
string content = string.Empty;
try
{
AmazonDynamoDBConfig clientConfig = new AmazonDynamoDBConfig();
clientConfig.RegionEndpoint = RegionEndpoint.USEast1;
AmazonDynamoDBClient client = new AmazonDynamoDBClient(clientConfig);
GetItemRequest getItemRqst = new GetItemRequest();
getItemRqst.TableName = TABLE_NAME;
getItemRqst.Key = new Dictionary <string, AttributeValue>();
getItemRqst.Key.Add("ContentKey", new AttributeValue()
{
S = key
});
var response = client.GetItemAsync(getItemRqst).Result;
if (response.HttpStatusCode == HttpStatusCode.OK)
{
filename = response.Item["Filename"].S;
}
if (!filename.Equals(string.Empty))
{
AmazonS3Client s3Client = new AmazonS3Client(RegionEndpoint.USEast1);
GetObjectRequest getRequest = new GetObjectRequest()
{
BucketName = S3_BUCKET_NAME,
Key = filename
};
using (GetObjectResponse getResponse = s3Client.GetObjectAsync(getRequest).Result)
using (Stream responseStream = getResponse.ResponseStream)
using (StreamReader reader = new StreamReader(responseStream))
{
content = reader.ReadToEnd();
}
}
}
catch (Exception ex)
{
throw ex;
}
return(content);
}
private GetItemResponse GetItem(string key)
{
var dynamoDbKey =
new Dictionary <string, AttributeValue> {
{ _partitionKeyName, new AttributeValue {
S = key
} }
};
GetItemRequest getItemRequest = new GetItemRequest(_tableName, dynamoDbKey);
return(_client.GetItemAsync(getItemRequest, CancellationToken.None).Result);
}
public async Task <string> GetNextShardIterator(string app, string stream, string shard)
{
if (!_tableConfirmed)
{
await EnsureTable();
}
var response = await _client.GetItemAsync(new GetItemRequest()
{
TableName = _tableName,
Key = new Dictionary <string, AttributeValue>
{
{ "id", new AttributeValue(FormatId(app, stream, shard)) }
}
});
if (!response.Item.ContainsKey("next_iterator"))
{
return(null);
}
return(response.Item["next_iterator"].S);
}