using System;

using System.Collections.Generic;

using System.Reflection;

using Newtonsoft.Json;

using Newtonsoft.Json.Serialization;

public class Program

{

    public static void Main()

    {

        string json = @"

        [

            {

                ""wh_id"" : 24,

                ""wh_loc"" : ""Atlanta"",

                ""wh_item_list"" : 

                [

                    {

                        ""item_id"" : 152,

                        ""item_sku"" : ""WIDG10"",

                        ""item_desc"" : ""Widget"", 

                        ""item_price"" : 8.95,

                        ""item_qty"" : 82

                    },

                    {

                        ""item_id"" : 236,

                        ""item_sku"" : ""THGY20"",

                        ""item_desc"" : ""Thingy"", 

                        ""item_price"" : 4.98,

                        ""item_qty"" : 111

                    },

                    {

                        ""item_id"" : 491,

                        ""item_sku"" : ""DOOD30"",

                        ""item_desc"" : ""Doodad"", 

                        ""item_price"" : 2.89,

                        ""item_qty"" : 239

                    }

                ]

            },

            {

                ""wh_id"" : 51,

                ""wh_loc"" : ""Boston"",

                ""wh_item_list"" : 

                [

                    {

                        ""item_id"" : 908,

                        ""item_sku"" : ""GAD40"",

                        ""item_desc"" : ""Gadget"", 

                        ""item_price"" : 17.95,

                        ""item_qty"" : 37

                    },

                    {

                        ""item_id"" : 236,

                        ""item_sku"" : ""WHAT01"",

                        ""item_desc"" : ""Whatsit"", 

                        ""item_price"" : 2.65,

                        ""item_qty"" : 13

                    }

                ]

            },

        ]";

        // remap all the Warehouse and Item properties to new names matching the JSON we want to deserialize

        var resolver = new DynamicMappingResolver();

        resolver.RenameProperty<Warehouse>(nameof(Warehouse.Id), "wh_id");

        resolver.RenameProperty<Warehouse>(nameof(Warehouse.Location), "wh_loc");

        resolver.RenameProperty<Warehouse>(nameof(Warehouse.Items), "wh_item_list");

        resolver.RenameProperty<Item>(nameof(Item.Id), "item_id");

        resolver.RenameProperty<Item>(nameof(Item.StockNumber), "item_sku");

        resolver.RenameProperty<Item>(nameof(Item.ShortDescription), "item_desc");

        resolver.RenameProperty<Item>(nameof(Item.Price), "item_price");

        resolver.RenameProperty<Item>(nameof(Item.QuantityInStock), "item_qty");

​

        // deserialize from JSON to our model

        var settings = new JsonSerializerSettings { ContractResolver = resolver };

        var list = JsonConvert.DeserializeObject<List<Warehouse>>(json, settings);

        // dump out the data in tabular form

        Console.WriteLine($"Item Warehouse Stock No Description  Price  Qty");

        Console.WriteLine($"---- --------- -------- ----------- ------ ----");

        foreach (var warehouse in list)

        {

            foreach (var item in warehouse.Items)

            {

                Console.WriteLine($"{item.Id,-4} {warehouse.Location,-9} {item.StockNumber,-8} {item.ShortDescription,-11} {item.Price,6:N2} {item.QuantityInStock,4:N0}");

            }

        }

        Console.WriteLine();

​

        // Now let's rename everything again with different names this time and serialize back to JSON 

        // Note we need to create a new resolver to do this because the underlying DefaultContractResolver caches the created properties

        resolver = new DynamicMappingResolver();

        resolver.RenameProperty<Warehouse>(nameof(Warehouse.Id), "warehouse");

        resolver.RenameProperty<Warehouse>(nameof(Warehouse.Location), "city");

        resolver.RenameProperty<Warehouse>(nameof(Warehouse.Items), "inventory");

        resolver.RenameProperty<Item>(nameof(Item.Id), "id");

        resolver.RenameProperty<Item>(nameof(Item.StockNumber), "sku");

        resolver.RenameProperty<Item>(nameof(Item.ShortDescription), "name");

        resolver.RenameProperty<Item>(nameof(Item.Price), "price");

        resolver.RenameProperty<Item>(nameof(Item.QuantityInStock), "qty");

        // serialize to JSON

        settings = new JsonSerializerSettings { ContractResolver = resolver, Formatting = Formatting.Indented };

        json = JsonConvert.SerializeObject(list, settings);

        Console.WriteLine(json);

    }

}

​

public class Warehouse

{

    public int Id { get; set; }

    public string Location { get; set; }

    public List<Item> Items { get; set; }

}

​

public class Item

{

    public int Id { get; set; }

    public string StockNumber { get; set; }

    public string ShortDescription { get; set; }

    public decimal Price { get; set; }

    public int QuantityInStock { get; set; }

}

​

public class DynamicMappingResolver : DefaultContractResolver

{

    private Dictionary<Type, Dictionary<string, string>> _propertyMappingsByType = new Dictionary<Type, Dictionary<string, string>>();

    // allows caller to specify name mappings

    public void RenameProperty<T>(string memberName, string jsonName)

    {

        if (!_propertyMappingsByType.TryGetValue(typeof(T), out Dictionary<string, string> mappingsForType))

        {

            mappingsForType = new Dictionary<string, string>();

            _propertyMappingsByType.Add(typeof(T), mappingsForType);  

        }

        mappingsForType.Add(memberName, jsonName);

    }

​

    protected override JsonProperty CreateProperty(MemberInfo member, MemberSerialization memberSerialization)

    {

        JsonProperty prop = base.CreateProperty(member, memberSerialization);

        if (_propertyMappingsByType.TryGetValue(member.DeclaringType, out Dictionary<string, string> mappingsForType) && 

            mappingsForType.TryGetValue(member.Name, out string jsonName))

        {

            prop.PropertyName = jsonName;

        }

        return prop;

    }

}

​