From 197ddceac7d4c683d285b5371852f96abfab9b15 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Niko=20K=C3=B6ser?= <koeserniko@gmail.com>
Date: Fri, 9 Aug 2024 23:35:40 +0200
Subject: [PATCH] docs(examples): apply latest changes

---
 examples/complex/main.go |  7 +++----
 examples/koanf/main.go   |  6 +++---
 examples/simple/main.go  | 12 ++++++------
 examples/viper/main.go   |  6 +++---
 4 files changed, 15 insertions(+), 16 deletions(-)

diff --git a/examples/complex/main.go b/examples/complex/main.go
index 1fc859e..c4fce47 100644
--- a/examples/complex/main.go
+++ b/examples/complex/main.go
@@ -1,7 +1,7 @@
 package main
 
 import (
-	"fmt"
+	"log"
 	"time"
 
 	"github.com/nikoksr/konfetty"
@@ -92,7 +92,7 @@ func main() {
 	}
 
 	// Use konfetty to process the config
-	cfg, err := konfetty.FromConfig(cfg).
+	cfg, err := konfetty.FromStruct(cfg).
 		WithDefaults(
 			// Default for all BaseDevice instances
 			BaseDevice{
@@ -141,8 +141,7 @@ func main() {
 		}).
 		Build()
 	if err != nil {
-		fmt.Printf("Error processing config: %v\n", err)
-		return
+		log.Fatalf("Error building config: %v", err)
 	}
 
 	// The processed config would look like this:
diff --git a/examples/koanf/main.go b/examples/koanf/main.go
index 3a4da12..ee01d98 100644
--- a/examples/koanf/main.go
+++ b/examples/koanf/main.go
@@ -1,7 +1,7 @@
 package main
 
 import (
-	"fmt"
+	"errors"
 	"log"
 
 	"github.com/knadh/koanf/parsers/yaml"
@@ -51,7 +51,7 @@ func main() {
 	// Simply pass the config to konfetty and let it handle the rest.
 	//
 
-	cfg, err = konfetty.FromConfig(cfg).
+	cfg, err = konfetty.FromStruct(cfg).
 		WithDefaults(
 			AppConfig{
 				Database: DatabaseConfig{
@@ -71,7 +71,7 @@ func main() {
 		}).
 		WithValidator(func(c *AppConfig) error {
 			if c.Database.Username == "" || c.Database.Password == "" {
-				return fmt.Errorf("database credentials are required")
+				return errors.New("database credentials are required")
 			}
 			return nil
 		}).
diff --git a/examples/simple/main.go b/examples/simple/main.go
index abed07a..4c1239f 100644
--- a/examples/simple/main.go
+++ b/examples/simple/main.go
@@ -1,7 +1,7 @@
 package main
 
 import (
-	"fmt"
+	"errors"
 	"log"
 
 	"github.com/nikoksr/konfetty"
@@ -31,10 +31,12 @@ func main() {
 			Crust: "thin",
 		},
 		Quantity: 1,
+		Delivery: true,
+		Address:  "A-123, 4th Street, New York",
 	}
 
 	// Use konfetty to process the config
-	cfg, err := konfetty.FromConfig(cfg).
+	cfg, err := konfetty.FromStruct(cfg).
 		WithDefaults(
 			OrderConfig{
 				Pizza: PizzaConfig{
@@ -54,7 +56,7 @@ func main() {
 		}).
 		WithValidator(func(c *OrderConfig) error {
 			if c.Delivery && c.Address == "" {
-				return fmt.Errorf("delivery address is required for delivery orders")
+				return errors.New("delivery address is required for delivery orders")
 			}
 			return nil
 		}).
@@ -80,8 +82,6 @@ func main() {
 	//   },
 	//   Quantity: 1,
 	//   Delivery: true,
-	//   Address:  "",
+	//   Address:  "A-123, 4th Street, New York",
 	// }
-	//
-	// Note: The above configuration would fail validation due to missing address for delivery.
 }
diff --git a/examples/viper/main.go b/examples/viper/main.go
index c3faa49..51df57c 100644
--- a/examples/viper/main.go
+++ b/examples/viper/main.go
@@ -1,7 +1,7 @@
 package main
 
 import (
-	"fmt"
+	"errors"
 	"log"
 
 	"github.com/spf13/viper"
@@ -47,7 +47,7 @@ func main() {
 	}
 
 	// Use konfetty to handle the rest
-	cfg, err = konfetty.FromConfig(cfg).
+	cfg, err = konfetty.FromStruct(cfg).
 		WithDefaults(
 			AppConfig{
 				Database: DatabaseConfig{
@@ -67,7 +67,7 @@ func main() {
 		}).
 		WithValidator(func(c *AppConfig) error {
 			if c.Database.Username == "" || c.Database.Password == "" {
-				return fmt.Errorf("database credentials are required")
+				return errors.New("database credentials are required")
 			}
 			return nil
 		}).