Method AddDataSourceAsync

Namespace: LMKit.Retrieval

Assembly: LM-Kit.NET.dll

AddDataSourceAsync(string, CancellationToken)

Asynchronously loads and registers an existing DataSource from the configured vector store.

public Task AddDataSourceAsync(string dataSourceIdentifier, CancellationToken cancellationToken = default)

Parameters

dataSourceIdentifier string: The unique identifier of the DataSource to load from the vector store.
cancellationToken CancellationToken: A token to cancel the operation.

Returns

Task: A task representing the asynchronous operation.

Examples

// Create a RagEngine with a vector store
LM embeddingModel = LM.LoadFromModelID("embeddinggemma-300m");
IVectorStore vectorStore = new QdrantVectorStore("http://localhost:6333");
RagEngine ragEngine = new RagEngine(embeddingModel, vectorStore);

// Load a previously persisted data source
await ragEngine.AddDataSourceAsync("myPersistedDataSource");

Console.WriteLine("DataSource loaded and registered successfully.");

Remarks

This method retrieves a previously persisted DataSource from the external vector store and registers it with the engine for retrieval operations. The data source must already exist in the vector store; use ImportTextAsync(string, string, string, CancellationToken) or similar import methods to create new data sources.

A vector store must be configured when constructing the RagEngine for this method to work.

Exceptions

ArgumentNullException: Thrown if dataSourceIdentifier is null, empty, or whitespace.
InvalidOperationException: Thrown if no vector store was configured when constructing the RagEngine.
KeyNotFoundException: Thrown if no DataSource with the specified identifier exists in the vector store.
ArgumentException: Thrown if a DataSource with the same identifier is already registered with this engine.
OperationCanceledException: Thrown if the operation is canceled.