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[Pre3] Response streaming default and opt-out #34894

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guardrex merged 11 commits into from
Mar 25, 2025
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[Pre3] Response streaming default and opt-out #34894

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Response streaming default and opt-out
guardrex Mar 5, 2025
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Merge branch 'main' into guardrex/blazor-opt-out-response-streaming
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5 changes: 2 additions & 3 deletions aspnetcore/blazor/call-web-api.md
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Expand Up @@ -911,11 +911,10 @@ Blazor's client-side implementation of <xref:System.Net.Http.HttpClient> uses [F

:::moniker range=">= aspnetcore-10.0"

Response streaming is enabled by default. To opt-out of response streaming, set an <xref:System.Net.Http.HttpRequestOptionsKey%601> for "`WebAssemblyEnableStreamingResponse`" to `false` on the <xref:System.Net.Http.HttpRequestMessage>:
Response streaming is enabled by default. To opt-out of response streaming, set <xref:Microsoft.AspNetCore.Components.WebAssembly.Http.WebAssemblyHttpRequestMessageExtensions.SetBrowserResponseStreamingEnabled%2A> to `false` on the <xref:System.Net.Http.HttpRequestMessage>:

```csharp
requestMessage.Options.Set(
new HttpRequestOptionsKey<bool>("WebAssemblyEnableStreamingResponse"), false);
requestMessage.SetBrowserRequestStreamingEnabled(false);
```

:::moniker-end
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5 changes: 2 additions & 3 deletions aspnetcore/release-notes/aspnetcore-10/includes/blazor.md
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Expand Up @@ -40,11 +40,10 @@ Previously, <xref:Microsoft.AspNetCore.Components.NavigationManager.NavigateTo%2

In prior Blazor releases, response streaming for <xref:System.Net.Http.HttpClient> requests was opt-in. Now, response streaming is enabled by default.

To opt-out of response streaming, set an <xref:System.Net.Http.HttpRequestOptionsKey%601> for "`WebAssemblyEnableStreamingResponse`" to `false` on the <xref:System.Net.Http.HttpRequestMessage>:
To opt-out of response streaming, set <xref:Microsoft.AspNetCore.Components.WebAssembly.Http.WebAssemblyHttpRequestMessageExtensions.SetBrowserResponseStreamingEnabled%2A> to `false` on the <xref:System.Net.Http.HttpRequestMessage>:

```csharp
requestMessage.Options.Set(
new HttpRequestOptionsKey<bool>("WebAssemblyEnableStreamingResponse"), false);
requestMessage.SetBrowserRequestStreamingEnabled(false);
```

For more information, see [`HttpClient` and `HttpRequestMessage` with Fetch API request options (*Call web API* article)](xref:blazor/call-web-api?view=aspnetcore-10.0#httpclient-and-httprequestmessage-with-fetch-api-request-options).
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