public DynamoDBItem MergeData(DynamoDBItem data)
{
var dataDict = data.ToDictionary();
var merged = _data.Union(dataDict).ToDictionary(k => k.Key, v => v.Value);
return(new DynamoDBItem(merged));
}
private DynamoDBItem DynamoDBKey(string pk, string sk)
{
var dbItem = new DynamoDBItem();
dbItem.AddPK(pk);
dbItem.AddSK(sk);
return(dbItem);
}
public async Task BatchDeleteItemsAsync(IEnumerable <TKey> items)
{
var dbItems = new List <DynamoDBItem>();
foreach (var item in items)
{
var dbItem = new DynamoDBItem();
dbItem.AddPK(PKValue(item));
dbItem.AddSK(SKValue(item));
dbItems.Add(dbItem);
}
await _dynamoDbClient.BatchDeleteItemsAsync(dbItems);
}
public async Task BatchDeleteItemsAsync(TKey parentKey, IEnumerable <TKey> items)
{
var pk = PKValue(parentKey);
var dbItems = new List <DynamoDBItem>();
foreach (var item in items)
{
var relationKey = GetRelationKey(parentKey, item);
var dbItem = new DynamoDBItem();
dbItem.AddPK(pk);
dbItem.AddSK(SKValue(relationKey));
dbItems.Add(dbItem);
}
await _dynamoDbClient.BatchDeleteItemsAsync(dbItems);
}
public async Task PutItemAsync(string pk, string sk, DynamoDBItem item)
{
if (item == null)
{
throw new ArgumentNullException(nameof(item));
}
var dbItemKey = DynamoDBKey(pk, sk);
var dbItemData = dbItemKey.MergeData(item);
var putItemRq = new PutItemRequest
{
TableName = TableName,
Item = dbItemData.ToDictionary()
};
var result = await _dynamoDbClient.PutItemAsync(putItemRq);
}
protected abstract TEntity FromDynamoDb(DynamoDBItem item);