rename backend to pkg

pkg/api/api_models.go

@@ -0,0 +1,19 @@
+package api
+
+type saveDashboardCommand struct {
+	Id        string `json:"id"`
+	Title     string `json:"title"`
+	Dashboard map[string]interface{}
+}
+
+type errorResponse struct {
+	Message string `json:"message"`
+}
+
+type indexViewModel struct {
+	title string
+}
+
+func newErrorResponse(message string) *errorResponse {
+	return &errorResponse{Message: message}
+}