func RunSignedRequest(signingKey types.SigningKey, req *utils.HttpRequest, payloadJson []byte) (*utils.HttpResponse, error) {
var nonce string
{
nonceResp, err := http.Head(req.URL)
if nil != err {
return nil, err
}
defer nonceResp.Body.Close()
nonce = nonceResp.Header.Get("Replay-Nonce")
}
if 0 == len(nonce) {
return nil, fmt.Errorf("Didn't get a Replay-Nonce header")
}
sig, err := signingKey.Sign(payloadJson, nonce)
if nil != err {
return nil, err
}
utils.Debugf("sending to %s signed payload: %s\n", req.URL, string(payloadJson))
req.Body = []byte(sig.FullSerialize())
return req.Run()
}
