func JsonDecoder(reader io.Reader, v interface{}, trace retrace.Tracer) error {
if bytes, err := ioutil.ReadAll(reader); err != nil {
return err
} else if err = json.Unmarshal(bytes, &v); err != nil {
return err
} else {
trace.Annotate(retrace.FromRequestData, "body", fmt.Sprintf("%s", bytes))
return nil
}
}
func (cd *ContentTypeDecoders) DecodeBody(req *rest.Request, trace retrace.Tracer) error {
switch req.Raw.Method {
case "GET", "DELETE", "HEAD":
return nil
}
ctype := req.Raw.Header["Content-Type"]
decoder := cd.Get(ctype)
//new empty instance
body := req.Definition.RequestBody()
var bts []byte
var err error
if bts, err = req.Bytes(); err != nil {
return err
}
if body != nil {
if isBytes(reflect.TypeOf(body)) {
//if body type is castable to []byte, then we don't encode, just set directly
req.Body = bts
return nil
} else if decoder != nil {
decoder.Decode(bytes.NewReader(bts), &body, trace)
req.Body = body
} else if containsType(ctype, "application/x-www-form-urlencoded") {
req.Raw.ParseForm()
if err := util.MapHeaderToStruct(req.Raw.Form, &body); err != nil {
return err
}
trace.Annotate(retrace.FromRequestData, "body", fmt.Sprintf("%+v", body))
req.Body = body
} else {
if err = json.Unmarshal(bts, &body); err != nil {
return err
}
trace.Annotate(retrace.FromRequestData, "body", fmt.Sprintf("%s", bts))
req.Body = body
}
}
return nil
}