From 5136061a746b81d93223e261bf43a4bc76f41491 Mon Sep 17 00:00:00 2001
From: SergeyMenshykh <sergemenshikh@gmail.com>
Date: Sat, 11 Oct 2025 11:58:44 +0100
Subject: [PATCH 1/2] add internal overloads for GetResponse{Streaming}Async
 methods

---
 src/Custom/Responses/OpenAIResponseClient.cs | 28 +++++++++++++++++---
 1 file changed, 24 insertions(+), 4 deletions(-)

diff --git a/src/Custom/Responses/OpenAIResponseClient.cs b/src/Custom/Responses/OpenAIResponseClient.cs
index 55c7db9ba..1b0cb366c 100644
--- a/src/Custom/Responses/OpenAIResponseClient.cs
+++ b/src/Custom/Responses/OpenAIResponseClient.cs
@@ -228,11 +228,21 @@ public virtual CollectionResult<StreamingResponseUpdate> CreateResponseStreaming
             cancellationToken);
     }
 
-    public virtual async Task<ClientResult<OpenAIResponse>> GetResponseAsync(string responseId, CancellationToken cancellationToken = default)
+    public virtual Task<ClientResult<OpenAIResponse>> GetResponseAsync(string responseId, CancellationToken cancellationToken = default)
+    {
+        return GetResponseAsync(responseId, cancellationToken.ToRequestOptions() ?? new RequestOptions());
+    }
+
+    internal async Task<ClientResult<OpenAIResponse>> GetResponseAsync(string responseId, RequestOptions requestOptions)
     {
         Argument.AssertNotNullOrEmpty(responseId, nameof(responseId));
+        Argument.AssertNotNull(requestOptions, nameof(requestOptions));
+        if (requestOptions.BufferResponse is false)
+        {
+            throw new InvalidOperationException("'requestOptions.BufferResponse' must be 'true' when calling 'GetResponseAsync'.");
+        }
 
-        ClientResult protocolResult = await GetResponseAsync(responseId, stream: null, startingAfter: null, cancellationToken.ToRequestOptions()).ConfigureAwait(false);
+        ClientResult protocolResult = await GetResponseAsync(responseId, stream: null, startingAfter: null, requestOptions).ConfigureAwait(false);
         OpenAIResponse convenienceResult = (OpenAIResponse)protocolResult;
         return ClientResult.FromValue(convenienceResult, protocolResult.GetRawResponse());
     }
@@ -247,13 +257,23 @@ public virtual ClientResult<OpenAIResponse> GetResponse(string responseId, Cance
     }
 
     public virtual AsyncCollectionResult<StreamingResponseUpdate> GetResponseStreamingAsync(string responseId, int? startingAfter = null, CancellationToken cancellationToken = default)
+    {
+        return GetResponseStreamingAsync(responseId, cancellationToken.ToRequestOptions(streaming: true), startingAfter);
+    }
+
+    internal virtual AsyncCollectionResult<StreamingResponseUpdate> GetResponseStreamingAsync(string responseId, RequestOptions requestOptions, int? startingAfter = null)
     {
         Argument.AssertNotNull(responseId, nameof(responseId));
+        Argument.AssertNotNull(requestOptions, nameof(requestOptions));
+        if (requestOptions.BufferResponse is true)
+        {
+            throw new InvalidOperationException("'requestOptions.BufferResponse' must be 'false' when calling 'GetResponseStreamingAsync'.");
+        }
 
         return new AsyncSseUpdateCollection<StreamingResponseUpdate>(
-            async () => await GetResponseAsync(responseId, stream: true, startingAfter, cancellationToken.ToRequestOptions(streaming: true)).ConfigureAwait(false),
+            async () => await GetResponseAsync(responseId, stream: true, startingAfter, requestOptions).ConfigureAwait(false),
             StreamingResponseUpdate.DeserializeStreamingResponseUpdate,
-            cancellationToken);
+            requestOptions.CancellationToken);
     }
 
     public virtual CollectionResult<StreamingResponseUpdate> GetResponseStreaming(string responseId, int? startingAfter = null, CancellationToken cancellationToken = default)

From e9c7dc101ae5322be0956faf8c36d3ea8db40703 Mon Sep 17 00:00:00 2001
From: SergeyMenshykh <sergemenshikh@gmail.com>
Date: Sat, 11 Oct 2025 12:06:01 +0100
Subject: [PATCH 2/2] remove async from internal GetResponseStreaming

---
 src/Custom/Responses/OpenAIResponseClient.cs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/Custom/Responses/OpenAIResponseClient.cs b/src/Custom/Responses/OpenAIResponseClient.cs
index 1b0cb366c..57183d55c 100644
--- a/src/Custom/Responses/OpenAIResponseClient.cs
+++ b/src/Custom/Responses/OpenAIResponseClient.cs
@@ -261,7 +261,7 @@ public virtual AsyncCollectionResult<StreamingResponseUpdate> GetResponseStreami
         return GetResponseStreamingAsync(responseId, cancellationToken.ToRequestOptions(streaming: true), startingAfter);
     }
 
-    internal virtual AsyncCollectionResult<StreamingResponseUpdate> GetResponseStreamingAsync(string responseId, RequestOptions requestOptions, int? startingAfter = null)
+    internal AsyncCollectionResult<StreamingResponseUpdate> GetResponseStreamingAsync(string responseId, RequestOptions requestOptions, int? startingAfter = null)
     {
         Argument.AssertNotNull(responseId, nameof(responseId));
         Argument.AssertNotNull(requestOptions, nameof(requestOptions));