How to read only a specific part from HTTP Response body in c#?-CodePudding

I need only the "points": 300 from the below response body.

Here is the body:

{
  "channel": "abcd",
  "username": "fgh",
  "points": 300,
  "pointsAlltime": 0,
  "watchtime": 0,
  "rank": 1
}

The Code:

public async int get_points(string user){
 var client = new HttpClient();
 var request = new HttpRequestMessage
 {
    Method = HttpMethod.Get,
    RequestUri = new 
    Uri("https://api.streamelements.com/kappa/v2/points/abcd/fgh"),
    Headers =
    {
        { "Accept", "application/json" },
        { "Authorization", "Bearer 123" },
    },
  };
 using (var response = await client.SendAsync(request))
 {
    response.EnsureSuccessStatusCode();
    var body = await response.Content.ReadAsStringAsync();
    Console.WriteLine(body);
 }
}

I need only the points value. - 300

CodePudding user response：

You need to deserialize your string response into JSON and with the help of the property name you need to extract the points value.

Using JObject.Parse(String),

using (var response = await client.SendAsync(request))
{
    response.EnsureSuccessStatusCode();
    var result = await response.Content.ReadAsStringAsync();

    JObject jObj = JObject.Parse(result);
    Console.WriteLine(jObj["points"]);
}

You can also try the native .NET approach introduced in .NET 6 versions i.e. JsonNode.Parse(),

var jNode = JsonNode.Parse(result);
Console.WriteLine(jNode["points"]);