JsonHelper.cs

//--------------------------------------------------//
// Created by basicx-StrgV                          //
// https://github.com/basicx-StrgV/                 //
//--------------------------------------------------//
using System;
#if NETCOREAPP3_1_OR_GREATER
using System.IO;
using System.Text;
using System.Text.Json;
using System.Threading;
using System.Threading.Tasks;
#elif NETSTANDARD2_0
using Newtonsoft.Json;
#endif
using WGetNET.Exceptions;
 
namespace WGetNET.Helper
{
    internal static class JsonHelper
    {
        public static T StringToObject<T>(string jsonString) where T : class
        {
            T? instance = null;
 
            try
            {
#if NETCOREAPP3_1_OR_GREATER
                instance = JsonSerializer.Deserialize<T>(jsonString);
#elif NETSTANDARD2_0
                instance = JsonConvert.DeserializeObject<T>(jsonString);
#endif
            }
            catch (Exception e)
            {
                throw new InvalidJsonException(e);
            }
 
            if (instance == null)
            {
                throw new InvalidJsonException();
            }
 
            return instance;
        }
 
#if NETCOREAPP3_1_OR_GREATER
        public static async Task<T> StringToObjectAsync<T>(string jsonString, CancellationToken cancellationToken = default) where T : class
        {
            T? instance = null;
 
            try
            {
                using MemoryStream dataStream = new(Encoding.UTF8.GetBytes(jsonString));
 
                instance = await JsonSerializer.DeserializeAsync<T>(dataStream, null, cancellationToken);
            }
            catch (Exception e)
            {
                throw new InvalidJsonException(e);
            }
 
            if (instance == null)
            {
                throw new InvalidJsonException();
            }
 
            return instance;
        }
#endif
 
        public static string GetJson(object input)
        {
            string json = string.Empty;
 
#if NETCOREAPP3_1_OR_GREATER
            json = JsonSerializer.Serialize(input);
#elif NETSTANDARD2_0
                json = JsonConvert.SerializeObject(input);
#endif
 
            return json;
        }
    }
}