client/LogRequestDone: handle nil resp

Signed-off-by: Sumner Evans <sumner@beeper.com>

client.go

@@ -264,30 +264,32 @@ func (cli *Client) RequestStart(req *http.Request) {
 }
 
 func (cli *Client) LogRequestDone(req *http.Request, resp *http.Response, handlerErr error, contentLength int, duration time.Duration) {
-	if cli.ResponseHook != nil {
-		cli.ResponseHook(req, resp, duration)
-	}
-	mime := resp.Header.Get("Content-Type")
-	length := resp.ContentLength
-	if length == -1 && contentLength > 0 {
-		length = int64(contentLength)
-	}
 	evt := zerolog.Ctx(req.Context()).Debug().
 		Str("method", req.Method).
 		Str("url", req.URL.String()).
-		Int("status_code", resp.StatusCode).
-		Int64("response_length", length).
-		Str("response_mime", mime).
 		Dur("duration", duration)
+	if resp != nil {
+		if cli.ResponseHook != nil {
+			cli.ResponseHook(req, resp, duration)
+		}
+		mime := resp.Header.Get("Content-Type")
+		length := resp.ContentLength
+		if length == -1 && contentLength > 0 {
+			length = int64(contentLength)
+		}
+		evt = evt.Int("status_code", resp.StatusCode).
+			Int64("response_length", length).
+			Str("response_mime", mime)
+		if serverRequestID := resp.Header.Get("X-Beeper-Request-ID"); serverRequestID != "" {
+			evt.Str("beeper_request_id", serverRequestID)
+		}
+	}
 	if body := req.Context().Value(LogBodyContextKey); body != nil {
-		evt.Interface("body", body)
+		evt.Interface("req_body", body)
 	}
 	if handlerErr != nil {
 		evt.AnErr("body_parse_err", handlerErr)
 	}
-	if serverRequestID := resp.Header.Get("X-Beeper-Request-ID"); serverRequestID != "" {
-		evt.Str("beeper_request_id", serverRequestID)
-	}
 	evt.Msg("Request completed")
 }