public static async Task <PagedResult <TEntity> > GetPagedQueryResultsAsync <TEntity>(
this IDynamoDBContext dynamoDbContext, QueryOperationConfig queryConfig) where TEntity : class
{
var dbResults = new List <TEntity>();
var table = dynamoDbContext.GetTargetTable <TEntity>();
var search = table.Query(queryConfig);
var resultsSet = await search.GetNextSetAsync().ConfigureAwait(false);
var paginationToken = search.PaginationToken;
if (resultsSet.Any())
{
dbResults.AddRange(dynamoDbContext.FromDocuments <TEntity>(resultsSet));
// Look ahead for any more, but only if we have a token
if (!string.IsNullOrEmpty(PaginationDetails.EncodeToken(paginationToken)))
{
queryConfig.PaginationToken = paginationToken;
queryConfig.Limit = 1;
search = table.Query(queryConfig);
resultsSet = await search.GetNextSetAsync().ConfigureAwait(false);
if (!resultsSet.Any())
{
paginationToken = null;
}
}
}
return(new PagedResult <TEntity>(dbResults, new PaginationDetails(paginationToken)));
}
public PagedResult(IEnumerable <T> results, PaginationDetails paginationDetails)
{
if (null != results)
{
Results.AddRange(results);
}
PaginationDetails = paginationDetails;
}