update all basicauth code reference

_examples/dependency-injection/overview/web/middleware/basicauth.go

@@ -5,8 +5,6 @@ package middleware
 import "github.com/kataras/iris/v12/middleware/basicauth"
 
 // BasicAuth middleware sample.
-var BasicAuth = basicauth.New(basicauth.Config{
-	Users: map[string]string{
-		"admin": "password",
-	},
+var BasicAuth = basicauth.Default(map[string]string{
+	"admin": "password",
 })

_examples/file-server/file-server/main.go

@@ -74,10 +74,8 @@ func main() {
 			}),
 		})
 
-		auth := basicauth.New(basicauth.Config{
-			Users: map[string]string{
-				"myusername": "mypassword",
-			},
+		auth := basicauth.Default(map[string]string{
+			"myusername": "mypassword",
 		})
 
 		filesRouter.Delete("/{file:path}", auth, deleteFile)

_examples/mvc/login/web/middleware/basicauth.go

@@ -5,8 +5,6 @@ package middleware
 import "github.com/kataras/iris/v12/middleware/basicauth"
 
 // BasicAuth middleware sample.
-var BasicAuth = basicauth.New(basicauth.Config{
-	Users: map[string]string{
-		"admin": "password",
-	},
+var BasicAuth = basicauth.Default(map[string]string{
+	"admin": "password",
 })

_examples/mvc/repository/web/middleware/basicauth.go

@@ -5,8 +5,6 @@ package middleware
 import "github.com/kataras/iris/v12/middleware/basicauth"
 
 // BasicAuth middleware sample.
-var BasicAuth = basicauth.New(basicauth.Config{
-	Users: map[string]string{
-		"admin": "password",
-	},
+var BasicAuth = basicauth.Default(map[string]string{
+	"admin": "password",
 })

_examples/testing/httptest/main.go

@@ -8,11 +8,11 @@ import (
 func newApp() *iris.Application {
 	app := iris.New()
 
-	authConfig := basicauth.Config{
-		Users: map[string]string{"myusername": "mypassword"},
+	opts := basicauth.Options{
+		Allow: basicauth.AllowUsers(map[string]string{"myusername": "mypassword"}),
 	}
 
-	authentication := basicauth.New(authConfig)
+	authentication := basicauth.New(opts) // or just: basicauth.Default(map...)
 
 	app.Get("/", func(ctx iris.Context) { ctx.Redirect("/admin") })
 
@@ -36,7 +36,9 @@ func h(ctx iris.Context) {
 	username, password, _ := ctx.Request().BasicAuth()
 	// third parameter it will be always true because the middleware
 	// makes sure for that, otherwise this handler will not be executed.
-
+	// OR:
+	// ctx.User().GetUsername()
+	// ctx.User().GetPassword()
 	ctx.Writef("%s %s:%s", ctx.Path(), username, password)
 }