Creating a byte array of a http request and then trying to read it into a http.request doesn't seem to work when the request includes a body.
req, _ := http.NewRequest(http.MethodPost, "/Bar", strings.NewReader("Foo"))
rReq, _ := httputil.DumpRequest(req, true)
req2, _ := http.ReadRequest(bufio.NewReader(bytes.NewReader(rReq)))
b, _ := ioutil.ReadAll(req2.Body)
fmt.Println(b)
b is an empty array.
Two things are wrong in your code:
You must handle the errors. This would have helpesd you see that you never construct a valid request ("/Bar" is not a valid URL).
Use httputil.DumpRequestOut for outgoing request.
Takeaways: Always handle all errors and always read the whole whole package doc.