Migrate all methods in the model package to the service package

server/model/request/common.go

@@ -0,0 +1,12 @@
+package request
+
+// Paging common input parameter structure
+type PageInfo struct {
+	Page     int `json:"page"`
+	PageSize int `json:"pageSize"`
+}
+
+// Find by id structure
+type GetById struct {
+	Id float64 `json:"id"`
+}