how to find a string for json

Question

I have a string in json format.

In this way:

{"IdLead":4186960,"Concessionaria":"Mila - Centro","DadosQualificacao":{"IdEvento":79654,"Qualificacao":1,"Motivo":6,"DescricaoMotivo":"motivo 1234","Ficha":["aaaaaaaa - TESTE","Ação desejada:=123456789 teste 132456789","Data Agendamento Test-Drive:=20/04/2018","Já é Cliente da Marca?=SIM"]},"DadosPessoa":{"Nome":"Guilherme Martins","Email":"[email protected]","DDD":11,"Telefone":948831041,"CpfCnpj":"44436740803","PreferenciaContato":0}}

I need to show this string on my screen, however, it appears on a same line. I would like to know how to create this string to show in the identato format.

Answer 1

With the JSON.NET library it is possible to create an instance of the class JValue from the string and then show the representation of this object in string again using formatting option that respects indentation.

For example:

using System;
using Newtonsoft.Json;
using Newtonsoft.Json.Linq;

public class Program
{
    public static void Main()
    {
        var json = "{\"id\": 1, \"nome\": \"LINQ\"}";           
        var beauty = JValue.Parse(json).ToString(Formatting.Indented);
        Console.WriteLine(beauty);
    }
}

^{See working on . NET Fiddle}

Answer 2

I don’t think it’s worth you trying to build a parser by yourself. There are many things to deal with and you already have it ready.

You can create a method that uses the library’s Reader and Writer Newtonsoft and do the indented rewrite:

public class JsonFormatting
{
    public static string Ident(string json)
    {
        using (var sr = new StringReader(json))
            using (var sw = new StringWriter())
            {
                var jr = new JsonTextReader(sr);
                var jw = new JsonTextWriter(sw) { Formatting = Formatting.Indented };
                jw.WriteToken(jr);
                return sw.ToString();
            }
    }
}

To use it, you will do so:

string json = "{ \"Id\":123456, \"Content\":\"Seu json vai aqui...\"}";
string formatted = JsonFormatting.Ident(json);

This example is available on dotnetfiddle.

I hope I’ve helped.

Answer 3

You can use the library JSON.Net

Example of the site itself how it would be:

Product product = new Product();
product.Name = "Apple";
product.Expiry = new DateTime(2008, 12, 28);
product.Sizes = new string[] { "Small" };

string json = JsonConvert.SerializeObject(product);
// {
//   "Name": "Apple",
//   "Expiry": "2008-12-28T00:00:00",
//   "Sizes": [
//     "Small"
//   ]
// }

To find only the string you can use:

JsonConvert.SerializeObject(new { 'sua_string_aqui' });