/// <summary>
/// Asynchronously returns one document given an expression filter.
/// </summary>
/// <typeparam name="TDocument">The type representing a Document.</typeparam>
/// <typeparam name="TKey">The type of the primary key for a Document.</typeparam>
/// <param name="filter">A LINQ expression filter.</param>
/// <param name="partitionKey">An optional partition key.</param>
/// <param name="cancellationToken">An optional cancellation Token.</param>
public async virtual Task <TDocument> GetOneAsync <TDocument, TKey>(Expression <Func <TDocument, bool> > filter, string partitionKey = null, CancellationToken cancellationToken = default)
where TDocument : IDocument <TKey>
where TKey : IEquatable <TKey>
{
return(await MongoDbReader.GetOneAsync <TDocument, TKey>(filter, partitionKey, cancellationToken));
}
/// <summary>
/// Asynchronously returns one document given an expression filter.
/// </summary>
/// <typeparam name="TDocument">The type representing a Document.</typeparam>
/// <param name="filter">A LINQ expression filter.</param>
/// <param name="partitionKey">An optional partition key.</param>
public async Task <TDocument> GetOneAsync <TDocument>(Expression <Func <TDocument, bool> > filter, string partitionKey = null) where TDocument : IDocument <TKey>
{
return(await MongoDbReader.GetOneAsync <TDocument, TKey>(filter, partitionKey));
}
/// <summary>
/// Asynchronously returns one document given filter definition.
/// </summary>
/// <typeparam name="TDocument">The type representing a Document.</typeparam>
/// <typeparam name="TKey">The type of the primary key for a Document.</typeparam>
/// <param name="condition">A mongodb filter definition.</param>
/// <param name="findOption">A mongodb filter option.</param>
/// <param name="partitionKey">An optional partition key.</param>
/// <param name="cancellationToken">An optional cancellation Token.</param>
public Task <TDocument> GetOneAsync <TDocument, TKey>(FilterDefinition <TDocument> condition, FindOptions findOption = null, string partitionKey = null,
CancellationToken cancellationToken = default) where TDocument : IDocument <TKey> where TKey : IEquatable <TKey>
{
return(MongoDbReader.GetOneAsync <TDocument, TKey>(condition, findOption, partitionKey, cancellationToken));
}