如何在 ElasticSearch NEST 7.x 中使用 doc id 索引文档列表

Question

I'm indexing a list item with this code:

foreach (var menu in mappedCollection)
        {
            var response = await client.IndexAsync(menu, i => i.Id(menu.OptomasToolId));
        }

How to make IndexMany or any equivalent call so that I can index many items in one shot with their Ids.

Answer 1

You can use the low level API elasticsearch.net to bulk indexing many documents specifying index and id.

see : https://www.elastic.co/guide/en/elasticsearch/client/net-api/current/elasticsearch-net-getting-started.html#_bulk_indexing

Answer 2

It worked this way:

 BulkAllObservable<MenuForElasticSearch> bulk = client.BulkAll(mappedCollection, b => b
          .BufferToBulk((descriptor, list) =>
          {
              foreach (var item in list)
              {
                  descriptor.Index<MenuForElasticSearch>(bi => bi
                      .Index(index)
                      .Id(item.OptomasToolId)
                      .Document(item)
                  );
              }
          }));
         bulk.Subscribe(new BulkAllObserver(
             onError: (e) => {
                 // TO DO;
             },
             onCompleted: () => { 
                 // TO DO;
             }
         ));