refactor(*): return FileHeader in the File method

service/context.go

@@ -77,7 +77,7 @@ type ValueContainer interface {
 	// or "multipart/form-data".
 	Form(key string) ([]string, bool)
 	// File returns a file reader when "Content-Type" is "multipart/form-data".
-	File(key string) (multipart.File, bool)
+	File(key string) (multipart.File, *multipart.FileHeader, bool)
 	// Body returns a reader to read data from request body.
 	// The reader only can read once.
 	Body() (reader io.ReadCloser, contentType string, ok bool)
@@ -152,9 +152,9 @@ func (c *container) removeEmpties(values []string) ([]string, bool) {
 }
 
 // File returns a file reader when "Content-Type" is "multipart/form-data".
-func (c *container) File(key string) (multipart.File, bool) {
-	file, _, err := c.request.FormFile(key)
-	return file, err == nil
+func (c *container) File(key string) (multipart.File, *multipart.FileHeader, bool) {
+	file, fileHeader, err := c.request.FormFile(key)
+	return file, fileHeader, err == nil
 }
 
 // Body returns a reader to read data from request body.

service/source.go

@@ -252,7 +252,7 @@ func (g *FileParameterGenerator) Validate(name string, defaultValue interface{},
 // Generate generates an object by data from value container.
 func (g *FileParameterGenerator) Generate(ctx context.Context, vc ValueContainer, consumers []Consumer,
 	name string, target reflect.Type) (interface{}, error) {
-	file, ok := vc.File(name)
+	file, _, ok := vc.File(name)
 	if !ok {
 		return nil, nil
 	}

service/source_test.go

@@ -90,11 +90,11 @@ func (f *file) Close() error {
 	return nil
 }
 
-func (v *vc) File(key string) (multipart.File, bool) {
+func (v *vc) File(key string) (multipart.File, *multipart.FileHeader, bool) {
 	if key == testKey {
-		return &file{[]byte("test file"), 0}, true
+		return &file{[]byte("test file"), 0}, &multipart.FileHeader{Filename: "test"}, true
 	}
-	return nil, false
+	return nil, nil, false
 }
 
 func (v *vc) Body() (reader io.ReadCloser, contentType string, ok bool) {