rewrite checkpoint

utils.go

@@ -0,0 +1,22 @@
+package jira
+
+import (
+	"encoding/json"
+	"fmt"
+	"io"
+	"io/ioutil"
+
+	"github.com/pkg/errors"
+)
+
+func readJSON(input io.Reader, data interface{}) error {
+	content, err := ioutil.ReadAll(input)
+	if err != nil {
+		return err
+	}
+	err = json.Unmarshal(content, data)
+	if err != nil {
+		return errors.Wrap(err, fmt.Sprintf("JSON Parse Error: %s from %s", err, content))
+	}
+	return nil
+}