fix: prevent StreamWriter from disposing HttpResponse.Body in ConfigurableResponseNegotiator (#4)

Copilot · gimlichael · web-flow · commit 7e405e0c6f6a · 2026-03-01T23:40:46.000+01:00
* Initial plan

* fix: use leaveOpen:true in StreamWriter to avoid disposing HttpResponse.Body

Co-authored-by: gimlichael &lt;8550919+gimlichael@users.noreply.github.com&gt;

---------

Co-authored-by: copilot-swe-agent[bot] &lt;198982749+Copilot@users.noreply.github.com&gt;
Co-authored-by: gimlichael &lt;8550919+gimlichael@users.noreply.github.com&gt;
diff --git a/src/Codebelt.Extensions.Carter/Response/ConfigurableResponseNegotiator.cs b/src/Codebelt.Extensions.Carter/Response/ConfigurableResponseNegotiator.cs
@@ -113,7 +113,7 @@ public virtual async Task Handle<T>(HttpRequest req, HttpResponse res, T model,
     {
         var encoding = GetEncoding(req);
         res.ContentType = ContentType + "; charset=" + encoding.WebName;
-        await using var textWriter = new StreamWriter(res.Body, encoding);
+        await using var textWriter = new StreamWriter(res.Body, encoding, bufferSize: -1, leaveOpen: true);
         var formatter = GetFormatter();
         using (var streamReader = new StreamReader(formatter.Serialize(model), encoding))
         {

Original file line number	Diff line number	Diff line change
`@@ -113,7 +113,7 @@ public virtual async Task Handle<T>(HttpRequest req, HttpResponse res, T model,`
`113`	`113`	`{`
`114`	`114`	`var encoding = GetEncoding(req);`
`115`	`115`	`res.ContentType = ContentType + "; charset=" + encoding.WebName;`
`116`		`- await using var textWriter = new StreamWriter(res.Body, encoding);`
	`116`	`+ await using var textWriter = new StreamWriter(res.Body, encoding, bufferSize: -1, leaveOpen: true);`
`117`	`117`	`var formatter = GetFormatter();`
`118`	`118`	`using (var streamReader = new StreamReader(formatter.Serialize(model), encoding))`
`119`	`119`	`{`