Optimise conversion from Blob to Stream

Motivated by http4s/http4s#7539
disneystreaming · Oct 11, 2024 · 6d47764 · 6d47764
1 parent ae5b9de
commit 6d47764
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/modules/http4s-kernel/src/smithy4s/http4s/kernel/package.scala b/modules/http4s-kernel/src/smithy4s/http4s/kernel/package.scala
@@ -204,6 +204,8 @@ package object kernel {
 
   private def toStream[F[_]](
       blob: Blob
-  ): Stream[F, Byte] = Stream.chunk(Chunk.array(blob.toArray))
+  ): Stream[F, Byte] =
+    // Optimisation motivated by https://github.com/http4s/http4s/issues/7539
+    if (blob.isEmpty) Stream.empty else Stream.chunk(Chunk.array(blob.toArray))
 
 }