Added SymbolOptionResponse and the functionality to return data based…

… on the REST API (#126)

IEXSharp/Model/CoreData/ReferenceData/Response/SymbolOptionResponse.cs

@@ -0,0 +1,25 @@
+using System;
+
+namespace IEXSharp.Model.CoreData.ReferenceData.Response
+{
+	public class SymbolOptionResponse
+	{
+		public string symbol { get; set; }
+		public DateTime date { get; set; }
+		public string name { get; set; }
+		public string description { get; set; }
+		public DateTime expirationDate { get; set; }
+		public string type { get; set; }
+		public string side { get; set; }
+		public string exercise { get; set; }
+		public decimal strike { get; set; }
+		public string underlying { get; set; }
+		public string region { get; set; }
+		public string currency { get; set; }
+		public string figi { get; set; }
+		public int contractSize { get; set; }
+		public string cfiCode { get; set; }
+		public string exchange { get; set; }
+		public string exchangeName { get; set; }
+	}
+}

IEXSharp/Service/Cloud/CoreData/ReferenceData/IReferenceDataService.cs

@@ -65,7 +65,8 @@ public interface IReferenceDataService
 		/// </summary>
 		/// <returns></returns>
 		Task<IEXResponse<Dictionary<string, string[]>>> SymbolsOptionsAsync();
-
+		Task<IEXResponse<IEnumerable<SymbolOptionResponse>>> SymbolsOptionsAsync(string optionName);
+		Task<IEXResponse<IEnumerable<SymbolOptionResponse>>> SymbolsOptionsAsync(string optionName, string expiration);
 		/// <summary>
 		/// <see cref="https://iexcloud.io/docs/api/#otc-symbols"/>
 		/// </summary>

IEXSharp/Service/Cloud/CoreData/ReferenceData/ReferenceDataService.cs

@@ -108,5 +108,32 @@ public async Task<IEXResponse<IEnumerable<HolidaysAndTradingDatesUSResponse>>> H
 
 			return await executor.ExecuteAsync<IEnumerable<HolidaysAndTradingDatesUSResponse>>(urlPattern, pathNvc, qsb);
 		}
+
+		public async Task<IEXResponse<IEnumerable<SymbolOptionResponse>>> SymbolsOptionsAsync(string optionName)
+		{
+			const string urlPattern = "ref-data/options/symbols/[optionName]";
+			var qsb = new QueryStringBuilder();
+
+			var pathNvc = new NameValueCollection
+			{
+				{"optionName", optionName}
+			};
+
+			return await executor.ExecuteAsync<IEnumerable<SymbolOptionResponse>>(urlPattern, pathNvc, qsb);
+		}
+
+		public async Task<IEXResponse<IEnumerable<SymbolOptionResponse>>> SymbolsOptionsAsync(string optionName, string expiration)
+		{
+			const string urlPattern = "ref-data/options/symbols/[optionName]/[expiration]";
+			var qsb = new QueryStringBuilder();
+
+			var pathNvc = new NameValueCollection
+			{
+				{"optionName", optionName},
+				{"expiration", expiration }
+			};
+
+			return await executor.ExecuteAsync<IEnumerable<SymbolOptionResponse>>(urlPattern, pathNvc, qsb);
+		}
 	}
 }

IEXSharpTest/Cloud/CoreData/ReferenceDataTest.cs

@@ -131,6 +131,38 @@ public async Task SymbolsOptionsAsyncTest()
 			Assert.GreaterOrEqual(response.Data.Count(), 1);
 		}
 
+		[Test]
+		public async Task SymbolsOptionsAsyncTest2()
+		{
+			var response = await sandBoxClient.ReferenceData.SymbolsOptionsAsync("vixm");
+
+			Assert.IsNull(response.ErrorMessage);
+			Assert.IsNotNull(response.Data);
+			Assert.GreaterOrEqual(response.Data.Count(), 1);
+
+			Assert.IsNotNull(response.Data.First().expirationDate);
+			Assert.IsNotNull(response.Data.First().cfiCode);
+			Assert.IsNotNull(response.Data.First().exercise);
+			Assert.IsNotNull(response.Data.First().contractSize);
+			Assert.IsNotNull(response.Data.First().currency);
+		}
+
+		[Test]
+		public async Task SymbolsOptionsAsyncTest3()
+		{
+			var response = await sandBoxClient.ReferenceData.SymbolsOptionsAsync("vixm", "20230317");
+
+			Assert.IsNull(response.ErrorMessage);
+			Assert.IsNotNull(response.Data);
+			Assert.GreaterOrEqual(response.Data.Count(), 1);
+
+			Assert.IsNotNull(response.Data.First().expirationDate);
+			Assert.IsNotNull(response.Data.First().cfiCode);
+			Assert.IsNotNull(response.Data.First().exercise);
+			Assert.IsNotNull(response.Data.First().contractSize);
+			Assert.IsNotNull(response.Data.First().currency);
+		}
+
 		[Test]
 		public async Task SymbolsOTCAsyncTest()
 		{