Deserialize JSON data in to a class in c# - json

Question

hello people I have this Json data:
https://openexchangerates.org/api/latest.json?app_id=6cf59607a32d408eb3e04de1427a3169
and I want to deserialize in the following class
using Newtonsoft.Json;
using System.Collections.Generic;
namespace Divisas2MVVM2.Classes
{
public class ExchangeRates
{
[JsonProperty(PropertyName = "disclaimer")]
public string Disclaimer { get; set; }
[JsonProperty(PropertyName = "license")]
public string License { get; set; }
[JsonProperty(PropertyName = "timestamp")]
public int TimeStamp { get; set; }
[JsonProperty(PropertyName = "base")]
public string Base { get; set; }
[JsonProperty(PropertyName = "rates")]
public Rates Rates { get; set; }
}
public class Rates
{
public double AED { get; set; }
public double AFN { get; set; }
public double ALL { get; set; }
public double AMD { get; set; }
// I cut the text so that it would not be to long
public double ZMW { get; set; }
public double ZWL { get; set; }
}
public class Rate
{
public double TaxRate { get; set; }
public string Code { get; set; }
}
this is my attribute
private ExchangeRates exchangeRates;
the constructor of my MainViewModel
new ObservableCollection data
Rates = new ObservableCollection<Rate>();
and in this method a get the json data
try
{
var client = new HttpClient();
client.BaseAddress = new Uri("https://openexchangerates.org");
var url = "/api/latest.json?app_id=6cf59607a32d408eb3e04de1427a3169";
var response = await client.GetAsync(url);
if (!response.IsSuccessStatusCode)
{
Message = response.StatusCode.ToString();
IsRunning = false;
return;
}
var result = await response.Content.ReadAsStringAsync();
exchangeRates = JsonConvert.DeserializeObject<ExchangeRates>(result);
}
everything works fine, the variable result has correctly the json data in a string format, but when i call JsonConvert . DeserializeObject, the data "rates" it is not assigned correctly, all the other data: disclaimer", "license", "timestamp" etc. is correctly assigned. only rates fail.
the string is correct
other data is correct in the class
rates is incorrect
sorry for my English I hope you have understood me :)

Answer 1

use this as your model class
namespace Rate
{
using System;
using System.Collections.Generic;
using System.Globalization;
using Newtonsoft.Json;
using Newtonsoft.Json.Converters;
public partial class Rates
{
[JsonProperty("disclaimer")]
public string Disclaimer { get; set; }
[JsonProperty("license")]
public string License { get; set; }
[JsonProperty("timestamp")]
public long Timestamp { get; set; }
[JsonProperty("base")]
public string Base { get; set; }
[JsonProperty("rates")]
public Dictionary<string, double> RatesRates { get; set; }
}
public partial class Rates
{
public static Rates FromJson(string json) => JsonConvert.DeserializeObject<Rates>(json, Rate.Converter.Settings);
}
public static class Serialize
{
public static string ToJson(this Rates self) => JsonConvert.SerializeObject(self, Rate.Converter.Settings);
}
internal static class Converter
{
public static readonly JsonSerializerSettings Settings = new JsonSerializerSettings
{
MetadataPropertyHandling = MetadataPropertyHandling.Ignore,
DateParseHandling = DateParseHandling.None,
Converters = {
new IsoDateTimeConverter { DateTimeStyles = DateTimeStyles.AssumeUniversal }
},
};
}
}
Then do this in your class
var data = Rate.Rates.FromJson("jsonresult");
var rate = data.RatesRates;
foreach (var pair in rate)
{
string symbol = pair.Key; //"AED"
double value = pair.Value; //3.673175,
}
var time = data.Timestamp;
var disclaimer = data.Disclaimer;
var license = data.License;
Tested and working