Refer to SetBodyStreamWriter from SetBodyStream docs

README.md

@@ -296,7 +296,8 @@ fastttp.ListenAndServe(":80", m)
   * w.Header().Set("Set-Cookie") -> [ctx.Response.Header.SetCookie()](https://godoc.org/github.com/valyala/fasthttp#ResponseHeader.SetCookie)
   * w.Write() -> [ctx.Write()](https://godoc.org/github.com/valyala/fasthttp#RequestCtx.Write),
   [ctx.SetBody()](https://godoc.org/github.com/valyala/fasthttp#RequestCtx.SetBody),
-  [ctx.SetBodyStream()](https://godoc.org/github.com/valyala/fasthttp#RequestCtx.SetBodyStream)
+  [ctx.SetBodyStream()](https://godoc.org/github.com/valyala/fasthttp#RequestCtx.SetBodyStream),
+  [ctx.SetBodyStreamWriter()](https://godoc.org/github.com/valyala/fasthttp#RequestCtx.SetBodyStreamWriter)
   * w.WriteHeader() -> [ctx.SetStatusCode()](https://godoc.org/github.com/valyala/fasthttp#RequestCtx.SetStatusCode)
   * w.(http.Hijacker).Hijack() -> [ctx.Hijack()](https://godoc.org/github.com/valyala/fasthttp#RequestCtx.Hijack)
   * http.Error() -> [ctx.Error()](https://godoc.org/github.com/valyala/fasthttp#RequestCtx.Error)

http.go

@@ -132,6 +132,8 @@ func (resp *Response) SendFile(path string) error {
 //
 // bodyStream.Close() is called after finishing reading all body data
 // if it implements io.Closer.
+//
+// See also SetBodyStreamWriter.
 func (resp *Response) SetBodyStream(bodyStream io.Reader, bodySize int) {
 	resp.body = resp.body[:0]
 	resp.closeBodyStream()

server.go

@@ -689,6 +689,8 @@ func (ctx *RequestCtx) PostBody() []byte {
 // before returning io.EOF.
 //
 // If bodySize < 0, then bodyStream is read until io.EOF.
+//
+// See also SetBodyStreamWriter.
 func (ctx *RequestCtx) SetBodyStream(bodyStream io.Reader, bodySize int) {
 	ctx.Response.SetBodyStream(bodyStream, bodySize)
 }