How to get termvectors when using ingest plugin in ElasticSearch 5.5?

Elastic Stack Elasticsearch
1

All,

I have the following code to index a file using ingest plugin in elasticsearch

public class Document
{
  public string Id { get; set; }
  public string Content { get; set; }
  public Attachment Attachment { get; set; }
}

var indexResponse = client.CreateIndex("documents", c => c
  .Settings(s => s
    .Analysis(a => a
     .TokenFilters(f=>f.Stemmer("english_stem",st=>st.Language("english")).Stop("english_stop",sp=>sp.StopWords("_english_")))
     .CharFilters(cf => cf.PatternReplace("num_filter", nf => nf.Pattern("(\\d+)").Replacement(" ")))				 
     .Analyzers(an => an.Custom("tm_analyzer", ta => ta.CharFilters("num_filter").Tokenizer("standard").Filters("english_stem","english_stop","lowercase")))))
  .Mappings(m => m
    .Map<Document>(mp => mp
      .AllField(all => all
        .Enabled(false)
      )
      .Properties(ps => ps        
        .Text(s => s
          .Name(n => n.Content)
          .TermVector(TermVectorOption.Yes)
          .Store(true)				 
          .Analyzer("tm_analyzer")))));

client.PutPipeline("attachments", p => p
  .Description("Document attachment pipeline")
  .Processors(pr => pr
    .Attachment<Document>(a => a
      .Field(f => f.Content)
      .TargetField(f => f.Attachment)
    )
    .Remove<Document>(r => r
      .Field(f => f.Content)
    )
  )
);

var base64File = Convert.ToBase64String(File.ReadAllBytes("file1.xml"));
client.Index(new Document
{
  Id = file1.xml, 
  Content = base64File
}, i => i.Pipeline("attachments"));

As you can see i have set the termvector otpion to yes on the Content field.
But when i query like below using postman or in C# Nest i get nothing

POST /documents/document/_mtermvectors
{
    "ids" : ["1.xml"],
    "parameters": {
        "fields": [
                "content"
        ],
        "term_statistics": true
    }
}

Any ideas what I am doing wrong? Thanks for the help!

2

Answered here

3

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