Empty HTTP Response Using http.Client.Do in Golang

Question

I am using Go to make an HTTP GET request to an external web service. For some reason, the body of the response is always empty; the content length is always zero bytes. The response status code is always 200, however, and the call to Client.Do returns no error. The request requires an Authorization header, so I am using the http.NewRequest / http.Client.Do pattern to submit the request, as you'll see below. I have done requests similar to these in the past, but never using a GET that required a header. It seems unlikely that this the cause, but I wonder if it may be related. If anyone can spot any potential issues with the pattern used or perhaps has had a similar experience, I'd really appreciate any help.

Thank you.

if req, err := http.NewRequest("GET", "https://api.molt.in/v1/orders/11111111/items", nil); err != nil {
    return nil, err
} else {
    client := &http.Client{}
    req.Header.Add("Authorization", "secretToken")

    if resp, err := client.Do(req); err != nil {
        return nil, err
    } else {
        defer resp.Body.Close()
        return readBody(resp.Body)
    }
}

Answer 1

I finally discovered the source of the problem. It had nothing to do with the request being made, or the response being received. It had to do with the parsing of the response.

I was using bufio.NewScanner.Text to attempt to convert the response body into a string. Replacing this call with one to ioutil.ReadAll output the string that I originally expected.

Thanks for all of your help, and apologies for the misleading question.