Error indexing data in Elasticsearch

[Matheus26 (Matheus Oliveira de Barros)]

Hi,
I'm trying to index datas in Elasticsearch, but I'm getting an error.
I'm using the latest Nest release (7.17.0) in C#
The error is "Failed to serialize anonymous type".
This error message is from an exception after use Nest's IndexMany method.
I indexed some data, but at some point this error occurs.

Does anyone have any idea why this happens?
Thanks.

[warkolm (Mark Walkom)]

Welcome to our community!

I can't directly help with this, but it'd be useful for someone that knows this language if you could show the entire error, and the relevant code section.

[Matheus26 (Matheus Oliveira de Barros)]

Thanks for the answer!

The entire error is below:

Failed to serialize anonymous type: Nest.BulkIndexOperation1[AdsHelpers.AdELSMiscItemBase]. The type defines the following properties: 'Document' of type AdsHelpers.AdELSMiscItemBase 'Percolate' of type System.String 'Pipeline' of type System.String 'IfSequenceNumber' of type System.Nullable1[System.Int64]
'IfPrimaryTerm' of type System.Nullable1[System.Int64] 'Id' of type Nest.Id 'Index' of type Nest.IndexName 'RetriesOnConflict' of type System.Nullable1[System.Int32]
'Routing' of type Nest.Routing
'Version' of type System.Nullable1[System.Int64] 'VersionType' of type System.Nullable1[Elasticsearch.Net.VersionType]

I have a method that fills some objects of AdsHelpers.AdELSMiscItemBase and index in Elasticsearch.
The following is how I initialize the client and use the method that inserts multiple records in Elasticsearch.

ConnectionSettings settings = new ConnectionSettings(new Uri(ElasticsearchUri));
settings.DefaultIndex(indexName);

ElasticClient client = new ElasticClient(settings);

BulkResponse response = client.IndexMany(ads);

The variable "ads" is the list with some AdELSMiscItemBase.