Copybara import of the project:

sd-st · copybara-github · commit ed1e20984d68 · 2026-03-23T10:12:58.000-07:00
--
1c5fd02041399c1821fb8b66e64f737af06d533e by S Downward &lt;stephen@stainless.com&gt;:

use HttpClient instead of HttpMessageInvoker

PiperOrigin-RevId: 888155781
diff --git a/Google.GenAI/ApiClient.cs b/Google.GenAI/ApiClient.cs
@@ -29,10 +29,10 @@ public abstract class ApiClient : IDisposable, IAsyncDisposable
   {
     private static readonly string SdkVersion = GetSdkVersion();
 
-    private HttpMessageInvoker? _httpClient;
+    private HttpClient? _httpClient;
     private readonly object _httpClientLock = new object();
 
-    protected HttpMessageInvoker HttpClient
+    protected HttpClient HttpClient
     {
         get
         {
diff --git a/Google.GenAI/HttpApiClient.cs b/Google.GenAI/HttpApiClient.cs
@@ -151,7 +151,7 @@ public override async IAsyncEnumerable<ApiResponse> RequestStreamAsync(
       HttpRequestMessage request =
           await CreateHttpRequestAsync(httpMethod, path, requestJson, requestHttpOptions);
 
-      HttpResponseMessage response = await ((HttpClient)HttpClient).SendAsync(
+      HttpResponseMessage response = await HttpClient.SendAsync(
         request,
         // Use ResponseHeadersRead to avoid buffering the entire response
         HttpCompletionOption.ResponseHeadersRead,

Original file line number	Diff line number	Diff line change
`@@ -29,10 +29,10 @@ public abstract class ApiClient : IDisposable, IAsyncDisposable`
`29`	`29`	`{`
`30`	`30`	`private static readonly string SdkVersion = GetSdkVersion();`
`31`	`31`
`32`		`- private HttpMessageInvoker? _httpClient;`
	`32`	`+ private HttpClient? _httpClient;`
`33`	`33`	`private readonly object _httpClientLock = new object();`
`34`	`34`
`35`		`- protected HttpMessageInvoker HttpClient`
	`35`	`+ protected HttpClient HttpClient`
`36`	`36`	`{`
`37`	`37`	`get`
`38`	`38`	`{`