c# - 嵌套版本6.x中的InMemoryConnection Elasticsearch jsonSerializationException

Question

使用NEST版本6.x和NEST.JSonSerializer版本6.x，我收到JSONSerialization异常，并使用inMemory elasticsearch进行单元测试。

我尝试使用Nest和JsonSersializer版本7.x，并且运行良好。但是我的生产服务器具有6.x版本，因此我需要在6.x NEST Client上运行测试。

    var response = new
    {
        took = 1,
        timed_out = false,
        _shards = new
            {
                total = 2,
                successful = 2,
                failed = 0
            },
                hits = new
                {
                    total = new { value = 25 },
                    max_score = 1.0,
                    hits = Enumerable.Range(1, 25).Select(i => (object)new
                    {
                        _index = "project",
                        _type = "project",
                        _id = $"Project {i}",
                        _score = 1.0,
                        _source = new { name = $"Project {i}" }
                    }).ToArray()
                    }
     };

    var responseBytes = Encoding.UTF8.GetBytes(JsonConvert.SerializeObject(response));
    var connection = new InMemoryConnection(responseBytes, 200);
    var connectionPool = new SingleNodeConnectionPool(new Uri("http://localhost:9200"));
    var settings = new ConnectionSettings(connectionPool,connection).DefaultIndex("project");
        settings.DisableDirectStreaming();
    var client = new ElasticClient(settings);
    var searchResponse = client.Search<Project>(s => s.MatchAll());

预期输出:inMemory elasticsearch的响应
出现错误:
JsonSerializationException:无法将当前JSON对象(例如{“name”:“value”})反序列化为类型'System.Int64'，因为该类型需要JSON基本值(例如string，number，boolean，null)才能正确反序列化。

Answer 1

响应主体中总部分的架构在elasticsearch的6.x和7.x版本之间进行了更改。如果要使响应正文与NEST 6.x一起使用，则需要从

..
total = new { value = 25 },
..

至

..
total = 25,
..

完整示例:

var response = new
{
    took = 1,
    timed_out = false,
    _shards = new
    {
        total = 2,
        successful = 2,
        failed = 0
    },
    hits = new
    {
        total = 25,
        max_score = 1.0,
        hits = Enumerable.Range(1, 25).Select(i => (object)new
        {
            _index = "project",
            _type = "project",
            _id = $"Project {i}",
            _score = 1.0,
            _source = new { name = $"Project {i}" }
        }).ToArray()
    }
};

希望能有所帮助。