Parse errors instead of panics

common.go

@@ -7,13 +7,14 @@ import (
 
 type GenericValues map[string][]string
 
-func (gv GenericValues) Parse(data any, tag string) {
+func (gv GenericValues) Parse(data any, tag string) (err error) {
 	if gv == nil {
 		gv = make(GenericValues)
 	}
 	d := reflect.ValueOf(data)
 	if d.Kind() != reflect.Struct {
-		panic(fmt.Errorf("expected struct input for data"))
+		err = fmt.Errorf("expected struct input for data")
+		return
 	}
 	for i := 0; i < d.NumField(); i++ {
 		key, ok := d.Type().Field(i).Tag.Lookup(tag)
@@ -38,4 +39,5 @@ func (gv GenericValues) Parse(data any, tag string) {
 		}
 		gv[key] = v
 	}
+	return
 }

header.go

@@ -6,8 +6,8 @@ import (
 
 type Header map[string][]string
 
-func (h Header) Parse(data any) {
+func (h Header) Parse(data any) error {
-	GenericValues(h).Parse(data, "header")
+	return GenericValues(h).Parse(data, "header")
 }
 
 func (h Header) Get(key string) (value string) {

values.go

@@ -2,6 +2,6 @@ package router
 
 type Values map[string][]string
 
-func (v Values) Parse(data any) {
+func (v Values) Parse(data any) error {
-	GenericValues(v).Parse(data, "form")
+	return GenericValues(v).Parse(data, "form")
 }