This is because you have set the ExtractOnly=true
in your ExtractParameters
. Here is the comment for the ExtractOnly parameter from the source code.
/// <summary>
/// If true, return the extracted content from Tika without indexing the document.
/// This literally includes the extracted XHTML as a string in the response.
/// </summary>
public bool ExtractOnly { get; set; }
If you want to index the extracted content, do not set this parameter to true.