public async Task UpdateItemAsync <T>(DynamoUpdateItem update, CancellationToken token = default)
{
var request = ToUpdateItemRequest <T>(update);
await ExecAsync(async() =>
await DynamoDb.UpdateItemAsync(request, token).ConfigAwait()).ConfigAwait();
}
public async Task <bool> UpdateItemAsync <T>(UpdateExpression <T> update, CancellationToken token = default)
{
try
{
await ExecAsync(async() =>
await DynamoDb.UpdateItemAsync(update, token).ConfigAwait()).ConfigAwait();
return(true);
}
catch (ConditionalCheckFailedException)
{
return(false);
}
}
public async Task <T> UpdateItemNonDefaultsAsync <T>(T value, bool returnOld = false, CancellationToken token = default)
{
var table = DynamoMetadata.GetTable <T>();
var request = new UpdateItemRequest
{
TableName = table.Name,
Key = Converters.ToAttributeKey(this, table, value),
AttributeUpdates = Converters.ToNonDefaultAttributeValueUpdates(this, value, table),
ReturnValues = returnOld ? ReturnValue.ALL_OLD : ReturnValue.NONE,
};
var response = await ExecAsync(async() =>
await DynamoDb.UpdateItemAsync(request, token).ConfigAwait()).ConfigAwait();
if (response.Attributes.IsEmpty())
{
return(default);