Kibana发布搜索 - 预期[START_OBJECT]但发现[VALUE_STRING]

Question

请帮我解决这个问题。

我有一个像这样的.net核心客户端：

var client = new RestClient();
        client.BaseUrl = new Uri(Host);
        client.AddDefaultHeader("Content-Type", "application/json");

        var request = new RestRequest();
        request.Resource = "_search";           
        request.AddJsonBody(queryDslKibana);
        request.Method = Method.POST;
        request.AddHeader("Content-Type", "application/json");
        request.RequestFormat = DataFormat.Json;

Uri：http://URL:PORT/_search

queryDslKibana如下：

{"query":{"match":{"message":".Txt"}}} 



It runs on postman gracefully but the response on .net is: 

 {
    "error": {
        "root_cause": [{
            "type": "parsing_exception",
            "reason": "Expected [START_OBJECT] but found [VALUE_STRING]",
            "line": 1,
            "col": 1
        }],
        "type": "parsing_exception",
        "reason": "Expected [START_OBJECT] but found [VALUE_STRING]",
        "line": 1,
        "col": 1
    },
    "status": 400
 }

请帮忙 ：）

Answer 1

在我看来，变量“queryDslKibana”没有合适的JSON格式，当使用方法“AddJsonBody（）”时，对象具有适当的格式是很重要的。 “AddJsonBody（）”方法序列化您发送的对象，因此您应该首先尝试匿名对象。

像这样的东西：

var requestObject = new {query = new {match = new {message = ".txt"}}};

这应该会产生你需要的JSON：

{"query": {"match": {"message": ". Txt"}}}

Answer 2

谢谢@michael。

最终的代码是：

到kibana api到_search端点。

问题是.net RestClient，因为我必须像你说的那样发送一个对象（匿名对象或强类型对象）...

代码的答案是：

        var client = new RestClient();
        client.BaseUrl = new Uri(Host);
        client.AddDefaultHeader("Content-Type", "application/json");

        var request = new RestRequest();
        request.Resource = "_search";
        //{"query":{"match":{"message":"SEPP"}}}
        request.AddJsonBody(new { query = new { match = new { message = "SEPP" } } });
        request.Method = Method.POST;
        request.AddHeader("Content-Type", "application/json");
        request.RequestFormat = DataFormat.Json;

        IRestResponse response = client.ExecutePostTaskAsync(request).Result;