public void DynamoDBBatchGetItem()
{
#region batch-get-item-1435614252853
var response = client.BatchGetItem(new BatchGetItemRequest
{
RequestItems = new Dictionary <string, KeysAndAttributes> {
{ "tablename1", new KeysAndAttributes {
Keys = new List <Dictionary <string, AttributeValue> > {
new Dictionary <string, AttributeValue> {
{ "key1", new AttributeValue {
N = "NumberAttributeValue"
} }
}
},
AttributesToGet = new List <string> {
"attr1",
"attr2"
},
ConsistentRead = true,
ProjectionExpression = "str1",
ExpressionAttributeNames = new Dictionary <string, string> {
{ "name1", "attr3" },
{ "name2", "attr4" }
}
} },
{ "tablename2", new KeysAndAttributes {
Keys = new List <Dictionary <string, AttributeValue> > {
new Dictionary <string, AttributeValue> {
{ "key2", new AttributeValue {
BOOL = true
} }
}
},
AttributesToGet = new List <string> {
"attr1",
"attr2"
},
ConsistentRead = false,
ProjectionExpression = "str2",
ExpressionAttributeNames = new Dictionary <string, string> {
{ "name1", "attr3" },
{ "name2", "attr4" }
}
} }
},
ReturnConsumedCapacity = "NONE"
});
Dictionary <string, List <Dictionary <string, AttributeValue> > > responses = response.Responses;
List <ConsumedCapacity> consumedCapacity = response.ConsumedCapacity;
#endregion
}
private static void CallUntilCompletion(IAmazonDynamoDB client, BatchGetItemRequest request, Results allResults)
#endif
{
do
{
var serviceResponse = client.BatchGetItem(request);
foreach (var kvp in serviceResponse.Responses)
{
var tableName = kvp.Key;
var items = kvp.Value;
allResults.Add(tableName, items);
}
request.RequestItems = serviceResponse.UnprocessedKeys;
} while (request.RequestItems.Count > 0);
}
IEnumerable <BatchGetItemResponse> IPaginator <BatchGetItemResponse> .Paginate()
{
if (Interlocked.Exchange(ref _isPaginatorInUse, 1) != 0)
{
throw new System.InvalidOperationException("Paginator has already been consumed and cannot be reused. Please create a new instance.");
}
var requestItems = _request.RequestItems;
BatchGetItemResponse response;
do
{
_request.RequestItems = requestItems;
response = _client.BatchGetItem(_request);
requestItems = response.UnprocessedKeys;
yield return(response);
}while (requestItems.Count > 0);
}
private void CallUntilCompletion(IAmazonDynamoDB client, BatchGetItemRequest request)
#endif
{
do
{
var result = client.BatchGetItem(request);
var responses = result.Responses;
foreach (var response in responses)
{
var tableName = response.Key;
var items = response.Value;
List <Dictionary <string, AttributeValue> > fetchedItems;
if (!AllRetrievedItems.TryGetValue(tableName, out fetchedItems))
{
fetchedItems = new List <Dictionary <string, AttributeValue> >();
AllRetrievedItems[tableName] = fetchedItems;
}
fetchedItems.AddRange(items);
}
request.RequestItems = result.UnprocessedKeys;
} while (request.RequestItems.Count > 0);
}