From 4dc264e8e132961b6c825b591475b0e837f9f93a Mon Sep 17 00:00:00 2001
From: Joshua Tompkins <josh@joshtompkins.com>
Date: Fri, 9 Jan 2015 15:15:41 -0500
Subject: [PATCH] Resolves #21 - Add method to cancel a single sub.

---
 src/StripeClient.Subscriptions.cs      | 15 +++++++++++++++
 test/Stripe.Tests/SubscriptionTests.cs | 17 +++++++++++++++++
 2 files changed, 32 insertions(+)

diff --git a/src/StripeClient.Subscriptions.cs b/src/StripeClient.Subscriptions.cs
index b6fb354..f63d963 100644
--- a/src/StripeClient.Subscriptions.cs
+++ b/src/StripeClient.Subscriptions.cs
@@ -45,5 +45,20 @@ public StripeObject CancelCustomersSubscription(string customerId, bool? atPerio
 
 			return ExecuteObject(request);
 		}
+
+		public StripeObject CancelCustomersSubscription(string customerId, string subscriptionId, bool? atPeriodEnd = null) {
+			Require.Argument("customerId", customerId);
+
+			var request = new RestRequest();
+			request.Method = Method.DELETE;
+			request.Resource = "customers/{customerId}/subscriptions/{subscriptionId}";
+
+			request.AddUrlSegment("customerId", customerId);
+			request.AddUrlSegment("subscriptionId", subscriptionId);
+
+			if (atPeriodEnd.HasValue) request.AddParameter("at_period_end", atPeriodEnd.Value);
+
+			return ExecuteObject(request);
+		}
 	}
 }
diff --git a/test/Stripe.Tests/SubscriptionTests.cs b/test/Stripe.Tests/SubscriptionTests.cs
index 1defeca..1ae977c 100644
--- a/test/Stripe.Tests/SubscriptionTests.cs
+++ b/test/Stripe.Tests/SubscriptionTests.cs
@@ -46,5 +46,22 @@ public void CancelCustomersSubscription_Test()
 			Assert.NotNull(response.CanceledAt);
 			Assert.NotNull(response.EndedAt);
 		}
+
+		[Fact]
+		public void CancelSingleCustomersSubscription_Test() {
+			dynamic subscriptionResponse = _client.UpdateCustomersSubscription(_customer.Id, _plan.Id);
+
+			Assert.NotNull(subscriptionResponse);
+			Assert.False(subscriptionResponse.IsError);
+
+			var subId = subscriptionResponse["id"];
+
+			dynamic response = _client.CancelCustomersSubscription(_customer.Id, subId);
+
+			Assert.NotNull(response);
+			Assert.False(response.IsError);
+			Assert.NotNull(response.CanceledAt);
+			Assert.NotNull(response.EndedAt);
+		}
 	}
 }