backoff.go

err = backoff.Retry(func() error {
	bodyReader := bytes.NewReader(payload)
	resp, err := http.Post(c.BaseEndpoint+"/v1/set", "application/json", bodyReader)
	if err != nil {
		return err
	}
	defer resp.Body.Close()

	response := map[string]interface{}{}
	dec := json.NewDecoder(resp.Body)
	dec.Decode(&response)

	if resp.StatusCode != http.StatusOK {
		return fmt.Errorf(
			"HTTP Post Request Failed, Status Code %d. \nResponse: %v \nRequest payload: %v",
			resp.StatusCode,
			response,
			string(payload)
		)
	}
	return nil
}, b)