add one more project structure recommendation

_examples/project/api/users/api.go

@@ -0,0 +1,27 @@
+package users
+
+import (
+	"github.com/username/project/user"
+
+	"github.com/kataras/iris/v12"
+)
+
+type API struct {
+	Users user.Repository // exported field so api/router.go#api.RegisterDependency can bind it.
+}
+
+func (api *API) Configure(r iris.Party) {
+	r.Post("/signup", api.signUp)
+	r.Post("/signin", api.signIn)
+	// Add middlewares such as user verification by bearer token here.
+
+	// Authenticated routes...
+	r.Get("/", api.getInfo)
+}
+
+func (api *API) getInfo(ctx iris.Context) {
+	ctx.WriteString("...")
+}
+
+func (api *API) signUp(ctx iris.Context) {}
+func (api *API) signIn(ctx iris.Context) {}