Decode HTTP Response - version 3

DataFromResponse.v3.go

import (
	"encoding/json"
	"errors"
	"net/http"
)

type Customer struct {
  ID    string `json:"id"`
  Name  string `json:"name"`
}

func dataFromResponse(r *http.Response) (*Customer, error) {
  body, err := ioutil.ReadAll(r.Body)
  if err != nil {
    return nil, util.Error(util.Internal, "failed to read the body of response: %s", err.Error())
  }
  defer r.Body.Close()
  type Response struct {
    Customer *Customer `json:"data"`
  }
  res := Response{}
  if err := json.Unmarshal(body, &res); err != nil {
      return nil, errors.New("failed to convert response to Customer: %s", err.Error())
  }
  return res.Customer, nil
}