Elasticsearch NEST 多搜索 ArgumentNullException

Question

当我尝试使用 NEST 文档中的一个非常简单的 MultiSearch 运算符示例时：

var request = new MultiSearchRequest
            {
                Operations = new Dictionary<string, ISearchRequest>
                {
                    { "esproj", new SearchRequest 
                        { 
                            Query = new QueryContainer(new MatchAllQuery()) 
                        } 
                    },
                    { "people", new SearchRequest 
                        { 
                            Query = new QueryContainer(new MatchAllQuery()) 
                        } 
                    }
                }
            };

var result = _client.MultiSearch(request);

然后我有以下错误：

System.ArgumentNullException was unhandled by user code HResult=-2147467261 Source=mscorlib StackTrace: in System.Reflection.RuntimeMethodInfo.MakeGenericMethod(Type[] methodInstantiation) in Nest.Resolvers.Converters.MultiSearchConverter.ReadJson(JsonReader reader, Type objectType, Object existingValue, JsonSerializer serializer) w C:\code\elasticsearch-net\src\Nest\Resolvers\Converters\MultiSearchConverter.cs:row 101 in Nest.Resolvers.Converters.MultiSearchConverter.ReadJson(JsonReader reader, Type objectType, Object existingValue, JsonSerializer serializer) w C:\code\elasticsearch-net\src\Nest\Resolvers\Converters\MultiSearchConverter.cs:row 78 in Newtonsoft.Json.Serialization.JsonSerializerInternalReader.DeserializeConvertable(JsonConverter converter, JsonReader reader, Type objectType, Object existingValue) in Newtonsoft.Json.Serialization.JsonSerializerInternalReader.Deserialize(JsonReader reader, Type objectType, Boolean checkAdditionalContent)

但只有当我使用 Object Initializer Syntax 时 - 当我使用 Fluent Syntax 时：

var result2 = _client.MultiSearch(ms => ms
                .Search<MyClass>("esproj", s => s.MatchAll())
                .Search<MyClass>("people", s => s.MatchAll())
            );

一切正常（我得到结果）。我的 Nest 客户端版本是 1.4.2。我做错了什么？

Answer 1

这绝对是一个错误。刚刚打开 https://github.com/elastic/elasticsearch-net/issues/127 并将在下一个版本中解决此问题。

Elasticsearch NEST 多搜索 ArgumentNullException

Elasticsearch NEST MultiSearch ArgumentNullException

c#

elasticsearch

nest