fix: Update AssistantsWithVision example to use urls.

src/libs/OpenAI/Conversions/CreateMessageRequest.cs

@@ -22,6 +22,16 @@ public static implicit operator CreateMessageRequest(string content)
         return FromString(content);
     }
 
+    /// <summary>
+    /// 
+    /// </summary>
+    /// <param name="uri"></param>
+    /// <returns></returns>
+    public static implicit operator CreateMessageRequest(Uri uri)
+    {
+        return FromUri(uri);
+    }
+
     /// <summary>
     /// 
     /// </summary>
@@ -31,33 +41,61 @@ public static implicit operator CreateMessageRequest(string content)
     /// <returns></returns>
     public static CreateMessageRequest FromOpenAIFile(
         OpenAIFile file,
-        CreateMessageRequestRole role = CreateMessageRequestRole.User,
-        MessageContentImageFileObjectImageFileDetail? detail = null)
+        MessageContentImageFileObjectImageFileDetail detail = MessageContentImageFileObjectImageFileDetail.Auto,
+        CreateMessageRequestRole role = CreateMessageRequestRole.User)
     {
         file = file ?? throw new ArgumentNullException(nameof(file));
 
         return new CreateMessageRequest
         {
-            Role = CreateMessageRequestRole.User,
+            Role = role,
             Content = new List<OneOf<MessageContentImageFileObject, MessageContentImageUrlObject,
                     MessageRequestContentTextObject>>
                 {
-                    MessageContentImageFileObject.FromOpenAIFile(file),
+                    MessageContentImageFileObject.FromOpenAIFile(file, detail),
                 },
         };
     }
-    
+
     /// <summary>
     /// 
     /// </summary>
     /// <param name="content"></param>
+    /// <param name="role"></param>
     /// <returns></returns>
-    public static CreateMessageRequest FromString(string content)
+    public static CreateMessageRequest FromString(
+        string content,
+        CreateMessageRequestRole role = CreateMessageRequestRole.User)
     {
         return new CreateMessageRequest
         {
-            Role = CreateMessageRequestRole.User,
+            Role = role,
             Content = content,
         };
     }
+
+    /// <summary>
+    /// 
+    /// </summary>
+    /// <param name="uri"></param>
+    /// <param name="detail"></param>
+    /// <param name="role"></param>
+    /// <returns></returns>
+    public static CreateMessageRequest FromUri(
+        Uri uri,
+        MessageContentImageUrlObjectImageUrlDetail detail = MessageContentImageUrlObjectImageUrlDetail.Auto,
+        CreateMessageRequestRole role = CreateMessageRequestRole.User)
+    {
+        uri = uri ?? throw new ArgumentNullException(nameof(uri));
+
+        return new CreateMessageRequest
+        {
+            Role = role,
+            Content = new List<OneOf<MessageContentImageFileObject, MessageContentImageUrlObject,
+                MessageRequestContentTextObject>>
+            {
+                MessageContentImageUrlObject.FromUri(uri, detail),
+            },
+        };
+    }
 }

src/libs/OpenAI/Conversions/MessageContentImageFileObject.cs

@@ -20,7 +20,7 @@ public static implicit operator MessageContentImageFileObject(OpenAIFile file)
     /// <returns></returns>
     public static MessageContentImageFileObject FromOpenAIFile(
         OpenAIFile file,
-        MessageContentImageFileObjectImageFileDetail? detail = null)
+        MessageContentImageFileObjectImageFileDetail detail = MessageContentImageFileObjectImageFileDetail.Auto)
     {
         file = file ?? throw new ArgumentNullException(nameof(file));
 

src/libs/OpenAI/Conversions/MessageContentImageUrlObject.cs

@@ -0,0 +1,36 @@
+namespace OpenAI;
+
+public partial class MessageContentImageUrlObject
+{
+    /// <summary>
+    /// 
+    /// </summary>
+    /// <param name="uri"></param>
+    /// <returns></returns>
+    public static implicit operator MessageContentImageUrlObject(Uri uri)
+    {
+        return FromUri(uri);
+    }
+
+    /// <summary>
+    /// 
+    /// </summary>
+    /// <param name="uri"></param>
+    /// <param name="detail"></param>
+    /// <returns></returns>
+    public static MessageContentImageUrlObject FromUri(
+        Uri uri,
+        MessageContentImageUrlObjectImageUrlDetail detail = MessageContentImageUrlObjectImageUrlDetail.Auto)
+    {
+        uri = uri ?? throw new ArgumentNullException(nameof(uri));
+
+        return new MessageContentImageUrlObject
+        {
+            ImageUrl = new MessageContentImageUrlObjectImageUrl
+            {
+                Detail = detail,
+                Url = uri.ToString(),
+            }
+        };
+    }
+}

src/tests/OpenAI.IntegrationTests/Examples/Examples.Assistants.AssistantsWithVision.cs

@@ -19,25 +19,12 @@ public async Task AssistantsWithVision()
 
         Console.WriteLine($"Apple image available at:\n{new Uri(appleFileInfo.FullName).AbsoluteUri}");
 
-        ImagesResponse orangeImage = await api.Images.CreateImageAsync(
-            prompt: "picture of orange",
-            responseFormat: CreateImageRequestResponseFormat.B64Json);
-        byte[] orangeBytes = orangeImage.Data[0].Bytes;
-
-        FileInfo orangeFileInfo = new($"{Guid.NewGuid()}.png");
-
-        await File.WriteAllBytesAsync(orangeFileInfo.FullName, orangeBytes);
-
-        Console.WriteLine($"Orange image available at:\n{new Uri(orangeFileInfo.FullName).AbsoluteUri}");
+        Console.WriteLine($"Orange image available at:\n{new Uri("https://raw.githubusercontent.com/tryAGI/OpenAI/d237b700b03fe9913a6ff53fa623041e87705f2f/assets/orange.png")}");
 
         OpenAIFile pictureOfAppleFile = await api.Files.CreateFileAsync(
             file: appleBytes,
             filename: appleFileInfo.Name,
             purpose: CreateFileRequestPurpose.Vision);
-        OpenAIFile pictureOfOrangeFile = await api.Files.CreateFileAsync(
-            file: orangeBytes,
-            filename: orangeFileInfo.Name,
-            purpose: CreateFileRequestPurpose.Vision);
 
         AssistantObject assistant = await api.Assistants.CreateAssistantAsync(
             model: CreateAssistantRequestModel.Gpt4o,
@@ -49,7 +36,7 @@ public async Task AssistantsWithVision()
             Messages = [
                 "Hello, assistant! Please compare these two images for me:",
                 pictureOfAppleFile,
-                pictureOfOrangeFile,
+                new Uri("https://raw.githubusercontent.com/tryAGI/OpenAI/d237b700b03fe9913a6ff53fa623041e87705f2f/assets/orange.png"),
             ]
         });
 
@@ -60,6 +47,13 @@ public async Task AssistantsWithVision()
 
         await foreach (AssistantStreamEvent streamingUpdate in streamingUpdates)
         {
+            if (streamingUpdate.Error is {} error)
+            {
+                Console.WriteLine("--- Error ---");
+                Console.WriteLine($"Message: {error.Data.Message}");
+                Console.WriteLine($"Code: {error.Data.Code}");
+                Console.WriteLine($"Type: {error.Data.Type}");
+            }
             if (streamingUpdate.Run is {} run)
             {
                 if (run.Value1 is { Event: RunStreamEventVariant1Event.ThreadRunCreated })