将数组对象转换为Json作为Json中的一行（数组的序列化）ASP.NET core3.1

Question

I'M building Api that need to return json array as response like this :

"tagList": ["dragons", "training"],

But I got ((each element in separate line )):

"tagList": [
        "dragons",
        "training"
    ],

I was using System.Text.Json.Serialization; I tried to change it to Json.net by JsonConvert.SerializeObject(obj) but I got the same result . could anyone help me ,please ?

Answer 1

since you are using System.Text.Json.Serialization , try this

 JsonSerializerOptions options = new JsonSerializerOptions();
  options.WriteIndented = false //not using indent, white space, new line, etc.
    
    string jsonString = JsonSerializer.Serialize(obj, options);