Newtonsoft.Json.JsonReaderException: Additional text encountered after finished reading JSON content:

After alot of work, I came up with this:

string final = string.Empty;
string name = encoder.GetString(buffer);
char []arr = name.ToArray();

boolean bln = true;
foreach (char item in arr)
{
    if (bln)
    {
        if (item == '}')
        {
            final += item.ToString();
            break;
        }
        else
        {
            final += item.ToString();
        }
    }
}

Console.WriteLine(final);

which will truncate the rest of the characters.