public async static Task <T> FindFirstOrDefaultAsync <T, U>(this ICosmosDbRepository <T> repo, IList <U> partitionKeys, Expression <Func <T, bool> > predicate = null, Func <IQueryable <T>, IQueryable <T> > clauses = null, FeedOptions feedOptions = null)
{
var results = (await Task.WhenAll(
partitionKeys.Select(partitionKey => repo.FindFirstOrDefaultAsync(predicate, clauses, SetPartitionKey(partitionKey, feedOptions)))))
.AsQueryable();
if (results != default && clauses != default)
{
results = clauses.Invoke(results);
}
return(results.FirstOrDefault());
}
public static Task <T> FindFirstOrDefaultAsync <T, U>(this ICosmosDbRepository <T> repo, U partitionKey, Expression <Func <T, bool> > predicate = null, Func <IQueryable <T>, IQueryable <T> > clauses = null, FeedOptions feedOptions = null)
{
feedOptions = SetPartitionKey(partitionKey, feedOptions);
return(repo.FindFirstOrDefaultAsync(predicate, clauses, feedOptions));
}