Fix lint and format code in server dir

server/web/context/param/parsers.go

@@ -55,29 +55,25 @@ func (f parserFunc) parse(value string, toType reflect.Type) (interface{}, error
 	return f(value, toType)
 }
 
-type boolParser struct {
-}
+type boolParser struct{}
 
 func (p boolParser) parse(value string, toType reflect.Type) (interface{}, error) {
 	return strconv.ParseBool(value)
 }
 
-type stringParser struct {
-}
+type stringParser struct{}
 
 func (p stringParser) parse(value string, toType reflect.Type) (interface{}, error) {
 	return value, nil
 }
 
-type intParser struct {
-}
+type intParser struct{}
 
 func (p intParser) parse(value string, toType reflect.Type) (interface{}, error) {
 	return strconv.Atoi(value)
 }
 
-type floatParser struct {
-}
+type floatParser struct{}
 
 func (p floatParser) parse(value string, toType reflect.Type) (interface{}, error) {
 	if toType.Kind() == reflect.Float32 {
@@ -90,8 +86,7 @@ func (p floatParser) parse(value string, toType reflect.Type) (interface{}, erro
 	return strconv.ParseFloat(value, 64)
 }
 
-type timeParser struct {
-}
+type timeParser struct{}
 
 func (p timeParser) parse(value string, toType reflect.Type) (result interface{}, err error) {
 	result, err = time.Parse(time.RFC3339, value)
@@ -101,8 +96,7 @@ func (p timeParser) parse(value string, toType reflect.Type) (result interface{}
 	return
 }
 
-type jsonParser struct {
-}
+type jsonParser struct{}
 
 func (p jsonParser) parse(value string, toType reflect.Type) (interface{}, error) {
 	pResult := reflect.New(toType)