I want to convert api json data to value c#-CodePudding

Hi i'm newbie in c# dev and i'm not good at english i try to get value from json but it gives error [https://www.tutorialsteacher.com/articles/convert-json-string-to-object-in-csharp]

If anyone can help me with simple code I would be very grateful.

{
    "result": [{
        "company": "Server",
        "results": [{
            "name": "Server-01",
            "access": ["8.8.8.8:443", "1.1.1.1:443"],
            "is_ok": "0"
        }, {
            "name": "Server-02",
            "access": ["8.8.8.8:443", "1.1.1.1:443"],
            "is_ok": "0"
        }, {
            "name": "Server-03",
            "access": ["8.8.8.8:443", "1.1.1.1:443"],
            "is_ok": "1"
        }, {
            "name": "Server-04",
            "access": ["8.8.8.8:443", "1.1.1.1:443"],
            "is_ok": "0"
        }, {
            "name": "Server-05",
            "access": ["8.8.8.8:443", "1.1.1.1:443"],
            "is_ok": "0"
        }]
    }]
}

CodePudding user response：

C# can be different. Like .Net Framework or .Net Core / .Net, so next time please provide which framework do you use.

The are two common ways to deserialize JSON string - Json.NET (3rd party) or System.Text.Json (part of .Net).

For correct deserealization first of all you must provide valid models. But sometimes JSON properties violates C# Naming Conventions or they even can't be represented in code (e.g. property name with whitespace or "is_ok" from your JSON). To avoid this you must to use property attribute that connect your property in code and property in JSON. It's:

[JsonProperty("PropertyName")] for Json.NET
[JsonPropertyName("PropertyName")] for System.Text.Json

So, summing up the above, you must add models similar to this:

public class ResultWrapper
{
    [JsonProperty("result")] //use one of it based on selected library
    [JsonPropertyName("result")]
    public List<Result> Result { get; set; }
}

public class Result
{
    [JsonProperty("company")]
    [JsonPropertyName("company")]
    public string Company { get; set; }
    
    [JsonProperty("results")]
    [JsonPropertyName("results")]
    public List<ResultItem> Results { get; set; }
}

public class ResultItem
{
    [JsonProperty("name")]
    [JsonPropertyName("name")]
    public string Name { get; set; }
    
    [JsonProperty("access")]
    [JsonPropertyName("access")]
    public List<string> Access { get; set; }
    
    [JsonProperty("is_ok")]
    [JsonPropertyName("is_ok")]
    public string IsOk { get; set; }
}

and use one of next deserealization methods:

//Json.Net
var deserializedJsonNet = JsonConvert.DeserializeObject<ResultWrapper>(jsonFromQuestion);
//System.Text.Json
var deserializedSystemTextJson = JsonSerializer.Deserialize<ResultWrapper>(jsonFromQuestion);