package controller import ( "context" "github.com/gin-gonic/gin" entity "youtube_collection_server/entity" service "youtube_collection_server/service" ) type userController struct { } var UserController userController func (m *userController) Test(c *gin.Context) { user1 := entity.User{Name: "one", Age: 11, City: "1 City"} service.UserServiceInstance.Collection.InsertOne(context.TODO(), user1) c.JSON(200, gin.H{ "username": "name1", "data": "data1", }) }