Only 50 items are displayed when displaying search results with the azure search service

Question

When I get the result of a search I see this

That is, I get 298 results but only 50 values

I use this in my web API

private async Task<SearchResults<Oferta>> RunQueryAsync(SearchData model)
{
  InitSearch();
  var options = new SearchOptions()
  {
    IncludeTotalCount = true
  };

  options.HighlightFields.Add("content");
  options.HighlightPreTag = "<mark>";
  options.HighlightPostTag = "</mark>";
  options.Select.Add("metadata_storage_path");
  options.Select.Add("content");

  model.resultList = await _searchClient.SearchAsync<Oferta>(model.searchText, options).ConfigureAwait(false);

  model.resultList.GetResults().ToList().ForEach(r => {

  .....
  })

return model.resultList;   

In the loop I access the 298 returned elements and in all of them I decode the value of Document.metadata_storage_path since it is an index that analyzes files stored in blobs of a storage account, but when returning model.resulList only appears in the first 50 the decoded value in the remainder is still base 64 encoded

Any idea, please?

Thanks

Answer 1

Please add Size to your SearchOptions and set its value to a number less than or equal to 1000. Your code would be something like:

var options = new SearchOptions()
{
    IncludeTotalCount = true,
    Size = 1000
};

Size parameter maps to $top query parameter in Search Documents REST API. If no value is specified for the $top parameter, then 50 documents are returned by default.

Answer 2

With this code I get all the results even if they are more than 1000 And the calling front end receives all the values with the correctly decoded path

private async Task<List<SearchResult<Oferta>>> RunQueryAsync(SearchData model)
{
  InitSearch();
  var options = new SearchOptions()
  {
    IncludeTotalCount = true
  };

  options.HighlightFields.Add("content");
  options.HighlightPreTag = "<mark>";
  options.HighlightPostTag = "</mark>";
  options.Select.Add("metadata_storage_path");
  options.Select.Add("content");

  int currentPage = 0;
  int pageSize = 50;
  bool hasMoreResults = true;
  List<SearchResult<Oferta>> allResults = new List<SearchResult<Oferta>>();

  while (hasMoreResults)
  {
    options.Skip = currentPage * pageSize;
    options.Size = pageSize;

    model.resultList = await _searchClient.SearchAsync<Oferta>(model.searchText, options).ConfigureAwait(false);

    var currentResults = model.resultList.GetResults().ToList();
    currentResults.ForEach(r => {
      string pathCodificado = r.Document.metadata_storage_path;

      r.Document.metadata_storage_path = DecodeBase64(r.Document.metadata_storage_path);
      if (r.Document.metadata_storage_path != "")
      {
        r.Document.metadata_storage_path = r.Document.metadata_storage_path.Substring(62);
        r.Document.year = ExtraerAño(r.Document.metadata_storage_path);
      }
      else//Se ha producido algun error decodificando
      {
        r.Document.metadata_storage_path = pathCodificado;
        r.Document.year = -1;
      }
    });

    allResults.AddRange(currentResults);

    hasMoreResults = model.resultList.TotalCount > (currentPage + 1) * pageSize;

    currentPage++;
  }

    
  return allResults;
}

Pagination is performed in the RunQueryAsync method and returns a complete list of decoded results