MarketTime

[Burdett]

Hi

Getting an object set to null reference, when accessing the market time. My code is below. Is there something wrong with my filters? I'm trying to get a list together of MarketIDs and their respective start times for the day.

Any help appreciated, probably something stupid I'm overlooking. Thanks.


public static List<MarketCatalogue> myCatalogueToday(IClient myClient)
{

ISet<string> eventypeIds = new HashSet<string>();

eventypeIds.Add("4339"); // Note 4339 for dogs
// eventypeIds.Add("7");//horse racing.
//ListMarketCatalogue: Get next available horse races, parameters:
var time = new TimeRange();
time.From = DateTime.Now;
time.From = time.From.Add(new TimeSpan(0, -2, 0));
time.To = DateTime.Now.AddHours(18);

var marketFilter = new MarketFilter();

marketFilter = new MarketFilter();
marketFilter.EventTypeIds = eventypeIds;

marketFilter.MarketStartTime = time;




//market countries appears to be the location of the events (not legal betting territories)
marketFilter.MarketCountries = new HashSet<string>() { "GB", "IE" }; //,, "AU" "US",,, ,"FR", "AU" us,"FR", "ZA","SG", "IE", "NZ", "UA", "IN"
marketFilter.MarketTypeCodes = new HashSet<String>() { "WIN" };

var marketSort = MarketSort.FIRST_TO_START;


var maxResults = "120";

//as an example we requested runner metadata
ISet<MarketProjection> marketProjections = new HashSet<MarketProjection>();
marketProjections.Add(MarketProjection.RUNNER_META DATA);
marketProjections.Add(MarketProjection.RUNNER_DESC RIPTION);

Console.WriteLine("\nGetting todays catalogue");




var myList = myClient.listMarketCatalogue(marketFilter, marketProjections, marketSort, maxResults);


List<MarketCatalogue> myMarketCatalogue = new List<MarketCatalogue>();
MarketCatalogue Sole = new MarketCatalogue();
for (int i = 0; i < myList.Count; i++)
// for (int i = 0; i < 1; i++)
{
Sole.MarketId = myList[i].MarketId;
Sole.MarketName = myList[i].MarketName;
Sole.IsMarketDataDelayed = myList[i].IsMarketDataDelayed;
Sole.Runners = myList[i].Runners;
Sole.Description = myList[i].Description;
Sole.EventType = myList[i].EventType;
Sole.Event = myList[i].Event;
Sole.Competition = myList[i].Competition;


myMarketCatalogue.Add(Sole);
}

return myMarketCatalogue;
}

//////////////////////////////////////////////////////////////////////////////////////////////Main Progam/////////////////////////////////////////////////////////////////////////////
for (int i = 0; i < TodaysCatalogue.Count(); i++)
{
//code below is ok
string A = TodaysCatalogue[i].MarketId;


Console.WriteLine(A);
// faulty code next line, returns System.NullReferenceException: 'Object reference not set to an instance of an object.' MarketCatalogue.Description.get returned null.
Console.WriteLine(" "+TodaysCatalogue[0].MarketId + " " + TodaysCatalogue[0].Description.MarketTime+"");

}

[WTPooh]

marketProjections.Add(MarketProjection.MARKET_STAR T_TIME);

[Burdett]

It seems what I now need is the code for object MARKET_START_TIME.
I don't have it with my original set-up. Perhaps its later edition; but I know it will look something like its cousin: Market Desription.


public class MarketDescription
{
[JsonProperty(PropertyName = "persistenceEnabled")]
public bool IsPersistenceEnabled { get; set; }

[JsonProperty(PropertyName = "bspMarket")]
public bool IsBspMarket { get; set; }

[JsonProperty(PropertyName = "marketTime")]
public DateTime MarketTime { get; set; }

[JsonProperty(PropertyName = "suspendTime")]
public DateTime? SuspendTime { get; set; }

[JsonProperty(PropertyName = "settleTime")]
public DateTime? SettleTime { get; set; }

[JsonProperty(PropertyName = "bettingType")]
public MarketBettingType BettingType { get; set; }

[JsonProperty(PropertyName = "turnInPlayEnabled")]
public bool IsTurnInPlayEnabled { get; set; }

[JsonProperty(PropertyName = "marketType")]
public string MarketType { get; set; }

[JsonProperty(PropertyName = "regulator")]
public string Regulator { get; set; }

[JsonProperty(PropertyName = "marketBaseRate")]
public double MarketBaseRate { get; set; }

[JsonProperty(PropertyName = "discountAllowed")]
public bool IsDiscountAllowed { get; set; }

[JsonProperty(PropertyName = "wallet")]
public string Wallet { get; set; }

[JsonProperty(PropertyName = "rules")]
public string Rules { get; set; }

[JsonProperty(PropertyName = "rulesHasDate")]
public bool RulesHasDate { get; set; }

[JsonProperty(PropertyName = "clarifications")]
public string Clarifications { get; set; }

public override string ToString()
{
return new StringBuilder().AppendFormat("{0}", "MarketDescription")
.AppendFormat(" : BspMarket={0}", IsBspMarket)
.AppendFormat(" : BettingType={0}", BettingType)
.AppendFormat(" : MarketType={0}", MarketType)

.AppendFormat(" : MarketTime={0}", MarketTime)
.AppendFormat(" : SuspendTime={0}", SuspendTime)
.AppendFormat(" : SettleTime={0}", SettleTime)
.AppendFormat(" : MarketBaseRate={0}", MarketBaseRate)

.AppendFormat(" : IsPersistenceEnabled={0}", IsPersistenceEnabled)
.AppendFormat(" : IsTurnInPlayEnabled={0}", IsTurnInPlayEnabled)
.AppendFormat(" : IsDiscountAllowed={0}", IsDiscountAllowed)

.AppendFormat(" : Regulator={0}", Regulator)
.AppendFormat(" : Rules={0}", Rules)
.AppendFormat(" : RulesHasDate={0}", RulesHasDate)
.AppendFormat(" : Clarifications={0}", Clarifications)

.AppendFormat(" : Wallet={0}", Wallet)
.ToString();
}
}
}

[WTPooh]

MarketProjection.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using Newtonsoft.Json;
using Newtonsoft.Json.Converters;

namespace Api_ng_sample_code.TO
{
    [JsonConverter(typeof(StringEnumConverter))]
    public enum MarketProjection
    {
        COMPETITION, EVENT, EVENT_TYPE, [B]MARKET_START_TIME[/B], MARKET_DESCRIPTION, RUNNER_DESCRIPTION, RUNNER_METADATA 
    }
}

[JohnFromCairnsAustralia]

Looks like the API-NG sample code hasn't been updated. I'm just working through it myself, looks like there is a fair few outdated changes.

https://github.com/betfair/API-NG-sa...ng-sample-code

Does anyone have any updated sample code, or you guys just modify it manually?

[MarkInLondon]

Forgive me if I've misunderstood the question and/or not read it properly. Below is a cut-down version of one of the methods I use to return a filter, which requests today's Horse Races (WIN only markets) with an optional country code.

[FONT=courier new]        public static MarketFilter HorseRaceFilter(string country = null)
        {
            var marketFilter = new MarketFilter();
            marketFilter.EventTypeIds = new HashSet<string>() { "7" };
            marketFilter.MarketStartTime = new TimeRange()
            {
                From = DateTime.Now,
                To = DateTime.Now.AddDays(1)
            };
            if (country != null)
                marketFilter.MarketCountries = new HashSet<string>() { country };
            marketFilter.MarketTypeCodes = new HashSet<String>() { "WIN" };

            return marketFilter;
        }[/FONT]

And this is how I call that method, along with other properties, which are not relevant for this post:

        public List<MarketCatalogue> GetTodaysRaces()
        {
            List<MarketCatalogue> returnValue = new List<MarketCatalogue>();

            try
            {
                // retrieve from the config file, the maximum number of markets we want to retrieve
                int.TryParse
                (BetfairAPIHelper.Helper.ValidateStringConfigValueExists
                        (ConfigurationManager.AppSettings
                            ["ListMarketCatalogueMaximumResults"], "ListMarketCatalogueMaximumResults"),
                            out int listMarketCatalogueMaximumResults
                );

                // call the streaming api helper on the api dll to retrieve a list of all horse racing
                // markets for today
                returnValue = _client.ListMarketCatalogue
                (
                    BFHelpers.HorseRaceFilter(),
                    minimalHorseRaceProjection(),
                    MarketSort.FIRST_TO_START,
                    listMarketCatalogueMaximumResults
                );
            }

            catch (Exception ex)
            {
                // propagate this exception to the calling method - also, use MethodScraper to generate
                // the exception message, inlcuding: the current assembly, class and method names,
                // together with any method parameters and their values
                throw new Exception(new MethodScraper(ex).GetExceptionMessage());
            }

            return returnValue;
        }

[Sasuke2690]

Forgive me if I've misunderstood the question and/or not read it properly. Below is a cut-down version of one of the methods I use to return a filter, which requests today's Horse Races (WIN only markets) with an optional country code.

[FONT=courier new] public static MarketFilter HorseRaceFilter(string country = null)
{
var marketFilter = new MarketFilter();
marketFilter.EventTypeIds = new HashSet<string>() { "7" };
marketFilter.MarketStartTime = new TimeRange()
{
From = DateTime.Now,
To = DateTime.Now.AddDays(1)
};
if (country != null)
marketFilter.MarketCountries = new HashSet<string>() { country };
marketFilter.MarketTypeCodes = new HashSet<String>() { "WIN" };

return marketFilter;
}[/FONT]

And this is how I call that method, along with other properties, which are not relevant for this post:

public List<MarketCatalogue> GetTodaysRaces()
{
List<MarketCatalogue> returnValue = new List<MarketCatalogue>();

try
{
// retrieve from the config file, the maximum number of markets we want to retrieve
int.TryParse
(BetfairAPIHelper.Helper.ValidateStringConfigValueExists
(ConfigurationManager.AppSettings
["ListMarketCatalogueMaximumResults"], "ListMarketCatalogueMaximumResults"),
out int listMarketCatalogueMaximumResults
);

// call the streaming api helper on the api dll to retrieve a list of all horse racing
// markets for today
returnValue = _client.ListMarketCatalogue 
(
BFHelpers.HorseRaceFilter(),
minimalHorseRaceProjection(),
MarketSort.FIRST_TO_START,
listMarketCatalogueMaximumResults
);
}

catch (Exception ex)
{
// propagate this exception to the calling method - also, use MethodScraper to generate
// the exception message, inlcuding: the current assembly, class and method names,
// together with any method parameters and their values
throw new Exception(new MethodScraper(ex).GetExceptionMessage());
}

return returnValue;
}

The answer is quite good and easy to understand
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