package http import ( "errors" "net/http" "github.com/micro/go-micro/client/selector" ) type roundTripper struct { rt http.RoundTripper st selector.Strategy opts Options } func (r *roundTripper) RoundTrip(req *http.Request) (*http.Response, error) { s, err := r.opts.Registry.GetService(req.URL.Host) if err != nil { return nil, err } next := r.st(s) // rudimentary retry 3 times for i := 0; i < 3; i++ { n, err := next() if err != nil { continue } req.URL.Host = n.Address w, err := r.rt.RoundTrip(req) if err != nil { continue } return w, nil } return nil, errors.New("failed request") }