// sizeStackHandler returns the size of the Stack.
func (c *Conn) sizeStackHandler(w http.ResponseWriter, r *http.Request, stack *pila.Stack) {
stack.Read(c.opDate)
log.Println(r.Method, r.URL, http.StatusOK, stack.Size())
w.Header().Set("Content-Type", "application/json")
// Do not check error as we consider the size
// of a stack valid for a JSON encoding.
w.Write(stack.SizeToJSON())
}
// statusStackHandler returns the status of the Stack.
func (c *Conn) statusStackHandler(w http.ResponseWriter, r *http.Request, stack *pila.Stack) {
stack.Read(c.opDate)
log.Println(r.Method, r.URL, http.StatusOK)
w.Header().Set("Content-Type", "application/json")
// Do not check error as we consider that a flushed
// stack has no JSON encoding issues.
b, _ := stack.Status().ToJSON()
w.Write(b)
}
// peekStackHandler returns the peek of the Stack without modifying it.
func (c *Conn) peekStackHandler(w http.ResponseWriter, r *http.Request, stack *pila.Stack) {
var element pila.Element
element.Value = stack.Peek()
stack.Read(c.opDate)
log.Println(r.Method, r.URL, http.StatusOK, element.Value)
w.Header().Set("Content-Type", "application/json")
// Do not check error as we consider our element
// suitable for a JSON encoding.
b, _ := element.ToJSON()
w.Write(b)
}