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package main
import (
func main() {
app := iris.New()
mvc.New(app.Party("/")).Handle(&globalVisitorsController{visits: 0})
// http://localhost:8080
type globalVisitorsController struct {
// When a singleton controller is used then concurent safe access is up to the developers, because
// all clients share the same controller instance instead.
// Note that any controller's methods
// are per-client, but the struct's field can be shared across multiple clients if the structure
// does not have any dynamic struct field dependencies that depend on the iris.Context
// and ALL field's values are NOT zero, at this case we use uint64 which it's no zero (even if we didn't set it
// manually ease-of-understand reasons) because it's a value of &{0}.
// All the above declares a Singleton, note that you don't have to write a single line of code to do this, Iris is smart enough.
// see `Get`.
visits uint64
func (c *globalVisitorsController) Get() string {
count := atomic.AddUint64(&c.visits, 1)
return fmt.Sprintf("Total visitors: %d", count)
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