/
reason.go
47 lines (40 loc) · 1.25 KB
/
reason.go
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/*
* Copyright 2019 Banco Bilbao Vizcaya Argentaria, S.A.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package http
import (
"encoding/json"
"errors"
"io/ioutil"
"net/http"
"github.com/BBVA/kapow/internal/server/httperror"
)
// Reason returns the reason phrase embedded within the JSON error
// body, or an error if no reason can be extracted
func Reason(r *http.Response) (string, error) {
body, err := ioutil.ReadAll(r.Body)
if err != nil {
return "", errors.New("error reading response's body")
}
reason := &httperror.ServerErrMessage{}
err = json.Unmarshal(body, reason)
if err != nil {
return "", errors.New("error unmarshaling JSON")
}
if reason.Reason == "" {
return "", errors.New("no reason")
}
return reason.Reason, nil
}