When using Retry(), how can I set timeout equal to the one defined in a custom HTTP client?

[tiagomelo]

Hi all.

Suppose the following api client:

type UserApiClient struct {
  getById() endpoint.Endpoint
}

func NewUserServiceHTTPClient(host string, l kitlog.Logger, opts ...httptransport.ClientOption) *UserApiClient {
  return &UserApiClient{
    getById: retryEndpoint(httptransport.NewClient(
      http.MethodGet,
      mustParseURL(host, ServerPrefix+"/by-id/"),
      encodeGetNewsletterScheduleByContentId,
      decodeGetNewsletterScheduleByContentId,
      opts...).Endpoint(), l)
  }
}

func retryEndpoint(e endpoint.Endpoint, l kitlog.Logger) endpoint.Endpoint {
  bl := sd.NewEndpointer(
    sd.FixedInstancer{"1"},
    sd.Factory(func(_ string) (endpoint.Endpoint, io.Closer, error) {
      return e, nil, nil
    }),
    l,
  )
  defer bl.Close()
  return lb.Retry(3, 5*time.Second, lb.NewRoundRobin(bl))
}

Then I want to set the underlying HTTP client used for requests, defining a timeout of 10 seconds:

httpClient := &http.Client{Timeout: 10 * time.Second}

userApiClient := bizniz.NewUserServiceHTTPClient(
  host,
  log.NewJSONLogger(os.Stdout),
  httptransport.SetClient(httpClient),
)

I'm wondering how to be able to use Retry() using the timeout defined in the HTTP client itself - the way that's written the timeout will be of 5 seconds, not 10.

Any suggestions?

Thanks!