func ParseJSON(res *http.Response, data interface{}) error {
body, err := ioutil.ReadAll(res.Body)
if err != nil {
return errgo.Newf("fail to read body of request %v, %v", res.Request, err)
}
debug.Println(string(body))
err = json.Unmarshal(body, data)
if err != nil {
return errgo.Newf("fail to parse JSON of request %v, %v", res.Request, err)
}
return nil
}
func NewRequestFailedError(res *http.Response, req *APIRequest) error {
debug.Println("APIRequest Error:", res.StatusCode, req.Method, req.Endpoint)
defer res.Body.Close()
switch res.StatusCode {
case 400:
var badRequestError BadRequestError
err := ParseJSON(res, &badRequestError)
if err != nil {
return errgo.Mask(err, errgo.Any)
}
return &RequestFailedError{res.StatusCode, badRequestError, req}
case 401:
return &RequestFailedError{res.StatusCode, errgo.New("unauthorized - you are not authorized to do this operation"), req}
case 402:
var paymentRequiredErr PaymentRequiredError
err := ParseJSON(res, &paymentRequiredErr)
if err != nil {
return errgo.Mask(err, errgo.Any)
}
return &RequestFailedError{res.StatusCode, paymentRequiredErr, req}
case 404:
var notFoundErr NotFoundError
err := ParseJSON(res, ¬FoundErr)
if err != nil {
return errgo.Mask(err, errgo.Any)
}
return &RequestFailedError{res.StatusCode, notFoundErr, req}
case 422:
var unprocessableError UnprocessableEntity
err := ParseJSON(res, &unprocessableError)
if err != nil {
return errgo.Mask(err, errgo.Any)
}
return &RequestFailedError{res.StatusCode, unprocessableError, req}
case 500:
return &RequestFailedError{res.StatusCode, errgo.New("server internal error - our team has been notified"), req}
case 503:
return &RequestFailedError{res.StatusCode, fmt.Errorf("upstream provider returned an error, please retry later"), req}
default:
return &RequestFailedError{res.StatusCode, fmt.Errorf("invalid status from server: %v", res.Status), req}
}
}