I am trying to parse Crypotocompares API and for some reason I am getting the following error:
An exception of type 'Newtonsoft.Json.JsonSerializationException' occurred in Newtonsoft.Json.dll but was not handled in user code
Additional information: Cannot deserialize the current JSON object (e.g. {"name":"value"}) into type 'System.Collections.Generic.List`1[NAVTicker.NAV]' because the type requires a JSON array (e.g. [1,2,3]) to deserialize correctly.
To fix this error either change the JSON to a JSON array (e.g. [1,2,3]) or change the deserialized type so that it is a normal .NET type (e.g. not a primitive type like integer, not a collection type like an array or List) that can be deserialized from a JSON object. JsonObjectAttribute can also be added to the type to force it to deserialize from a JSON object.
Path 'Data.Algorithm', line 1, position 94.
I followed the suggestion from this post but I am not able to post comments yet because i am not at that privilege yet: Parsing Cryptocompare API Json data in C#
*********************************** UPDATE: 1/3/2018 - 1:48 PM EST ************************************ I used the following tool to create the following class for the JSON String http://json2csharp.com/
JSON String
{"Response":"Success","Message":"This api will soon move to mi-api path.","Data":{"Algorithm":null,"ProofType":null,"BlockNumber":1698885,"NetHashesPerSecond":0.0,"TotalCoinsMined":62254171.851630449,"BlockReward":1.6228962785431318,"AggregatedData":{"TYPE":"5","MARKET":"CCCAGG","FROMSYMBOL":"NAV","TOSYMBOL":"USD","FLAGS":"4","PRICE":"0.00100076","LASTUPDATE":"1488584213","LASTVOLUME":"0.22401103","LASTVOLUMETO":"0.00022418127838280002","LASTTRADEID":"1397468","VOLUMEDAY":"0","VOLUMEDAYTO":"0","VOLUME24HOUR":"0","VOLUME24HOURTO":"0","OPENDAY":"0.00100076","HIGHDAY":"0.00100076","LOWDAY":"0.00100076","OPEN24HOUR":"0.00100076","HIGH24HOUR":"0.00100076","LOW24HOUR":"0.00100076","LASTMARKET":"CCEX"},"Exchanges":[{"TYPE":"2","MARKET":"CCEX","FROMSYMBOL":"NAV","TOSYMBOL":"USD","FLAGS":"2","PRICE":"0.00100076","LASTUPDATE":"1488584213","LASTVOLUME":"0.22401103","LASTVOLUMETO":"0.00022418127838280002","LASTTRADEID":"1397468","VOLUME24HOUR":"0","VOLUME24HOURTO":"0","OPEN24HOUR":"0.00100076","HIGH24HOUR":"0.00100076","LOW24HOUR":"0.00100076"}]},"Type":100}
public class AggregatedData
{
public string TYPE { get; set; }
public string MARKET { get; set; }
public string FROMSYMBOL { get; set; }
public string TOSYMBOL { get; set; }
public string FLAGS { get; set; }
public string PRICE { get; set; }
public string LASTUPDATE { get; set; }
public string LASTVOLUME { get; set; }
public string LASTVOLUMETO { get; set; }
public string LASTTRADEID { get; set; }
public string VOLUMEDAY { get; set; }
public string VOLUMEDAYTO { get; set; }
public string VOLUME24HOUR { get; set; }
public string VOLUME24HOURTO { get; set; }
public string OPENDAY { get; set; }
public string HIGHDAY { get; set; }
public string LOWDAY { get; set; }
public string OPEN24HOUR { get; set; }
public string HIGH24HOUR { get; set; }
public string LOW24HOUR { get; set; }
public string LASTMARKET { get; set; }
}
public class Exchange
{
public string TYPE { get; set; }
public string MARKET { get; set; }
public string FROMSYMBOL { get; set; }
public string TOSYMBOL { get; set; }
public string FLAGS { get; set; }
public string PRICE { get; set; }
public string LASTUPDATE { get; set; }
public string LASTVOLUME { get; set; }
public string LASTVOLUMETO { get; set; }
public string LASTTRADEID { get; set; }
public string VOLUME24HOUR { get; set; }
public string VOLUME24HOURTO { get; set; }
public string OPEN24HOUR { get; set; }
public string HIGH24HOUR { get; set; }
public string LOW24HOUR { get; set; }
}
public class Data
{
public object Algorithm { get; set; }
public object ProofType { get; set; }
public int BlockNumber { get; set; }
public double NetHashesPerSecond { get; set; }
public double TotalCoinsMined { get; set; }
public double BlockReward { get; set; }
public AggregatedData AggregatedData { get; set; }
public List<Exchange> Exchanges { get; set; }
}
public class RootObject
{
public string Response { get; set; }
public string Message { get; set; }
public Data Data { get; set; }
public int Type { get; set; }
}
How can I code it such that the JSON is parsed correctly?
******************************** END UPDATE: 1/3/2018 - 1:48 PM EST ******************************** Code:
private HttpClient m_Client = new HttpClient();
private Timer m_GetTickerInfo;
protected void Page_Load(object sender, EventArgs e)
{
m_Client.BaseAddress = new Uri("https://www.cryptocompare.com/");
m_Client.DefaultRequestHeaders.Accept.Clear();
m_Client.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));
GetInfo();
}
/// <summary>
///
/// </summary>
/// <returns></returns>
private void GetInfo()
{
HttpResponseMessage response = m_Client.GetAsync("api/data/coinsnapshot/?fsym=NAV&tsym=USD").Result;
if (response.IsSuccessStatusCode)
{
string result = response.Content.ReadAsStringAsync().Result;
// ERROR HERE
RootObject root = JsonConvert.DeserializeObject<RootObject >(result);
}
}
}
