ConnectorLib .NET 25.2
ConnectorLib .NET SDK Programming Guide

# Ingest Result Handlers

When you ingest a document using the `Add`, `Replace`, `Remove` or `Update` methods, the ingest command is placed in a queue and the method returns immediately. ConnectorLib .NET takes care of batching, sending the commands, and dealing with any transitory problems communicating with the target.

As a result, the `Add`, `Replace`, `Remove` and `Update` methods never fail, even if there is a problem ingesting a document. To find out whether each document was ingested successfully, you can register an Ingest result handler:

           task.Ingester.AddResultHandler(ResultHandler);

The result handler is called whenever a document is successfully ingested or when ingestion fails for a document. A simple result handler is shown here:

    private void ResultHandler(IDocInfo docInfo,
    	IngestTaskType type, bool success)
    {
    	if (success)
    	{
    		_task.Log.WriteLine(LogLevel.Normal,
    			string.Format("Document {0}, ingest {1} succeeded!",
    			docInfo.Document.Reference, type));
    	}
    	else
    	{
    		_task.Log.WriteLine(LogLevel.Error,
    			string.Format("Ingestion failed for {0}",
    			docInfo.Document.Reference));
    	}
    }

Ingest result handlers are useful when you want to update state information only when documents are ingested successfully. An example of a connector using an ingest result handler for this purpose is included in Make an Incremental Synchronize Action.

Copyright 2025 Open Text
Version 25.2 | Last updated April 2025

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Product: Knowledge Discovery ConnectorLib .NET 25.2

Topic Title: Ingest Result Handlers