public static IAsyncEnumerable <DbRowGrpcModel> SubscribeAsync(this MyNoSqlGrpcReaderConnection connection,
string tableName, string partitionKey)
{
var grpcRequest = new SubscribeGrpcRequest
{
ConnectionId = connection.ConnectionId,
TableName = tableName,
PartitionKey = partitionKey
};
return(connection.MyNoSqlGrpcServerReader.SubscribeAsync(grpcRequest));
}
public IAsyncEnumerable <DbRowGrpcModel> SubscribeAsync(SubscribeGrpcRequest request, CancellationToken token = default)
{
var session = _sessionsList.GetSession(request.ConnectionId);
var table = _dbTablesList.GetTable(request.TableName);
var result = table.LockWithReadAccess(readAccess =>
{
session.SubscribeToPartition(request.TableName, request.PartitionKey);
var partition = readAccess.TryGetPartition(request.PartitionKey);
if (partition == null)
{
return((IReadOnlyList <DbRowGrpcModel>)Array.Empty <DbRowGrpcModel>());
}
return(partition.Get().ToList());
});
return(new AsyncEnumerableResult <DbRowGrpcModel>(result));
}
