Hands-On Full Stack Development with Go

Getting orders for a specific user

We expect a URL with a parameter here as well, such as /user/:id/orders. The :id parameter represents the ID of the user whose orders we are trying to retrieve. The code will look like this:

func (h *Handler) GetOrders(c *gin.Context) {  if h.db == nil {    return  }  // get id parameter  p := c.Param("id")  // convert the string 'p' to integer 'id'  id, err := strconv.Atoi(p)  if err != nil {    c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})    return  }  // call the database layer method to get orders from id  orders, err := h.db.GetCustomerOrdersByID(id)  if err != nil {    c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})    return  }  c.JSON(http.StatusOK, orders)}