Merge pull request #1011 from hi019/master

Add more logger examples

middleware/logger/README.md

@@ -13,8 +13,8 @@ Logger middleware for [Fiber](https://github.com/gofiber/fiber) that logs HTTP r
 func New(config ...Config) fiber.Handler
 ```
 
-### Examples
-Import the middleware package that is part of the Fiber web framework
+## Examples
+First ensure the appropriate packages are imported
 ```go
 import (
 	"github.com/gofiber/fiber/v2"
@@ -22,17 +22,42 @@ import (
 )
 ```
 
-After you initiate your Fiber app, you can use the following possibilities:
+#### **Initialization / Default Config**
 ```go
 // Default middleware config
 app.Use(logger.New())
+```
 
-// Or extend your config for customization
+#### **Logging Request ID**
+```go
+app.Use(requestid.New())
+
+​app​.​Use​(​logger​.​New​(logger.​Config​{
+	// For more options, see the Config section
+  Format​: "${pid} ${locals:requestid} ${status} - ${method} ${path}​\n​"​,
+}))
+```
+
+#### **Changing TimeZone & TimeFormat**
+
+```go
 app.Use(logger.New(logger.Config{
 	Format:     "${pid} ${status} - ${method} ${path}\n",
 	TimeFormat: "02-Jan-2006",
 	TimeZone:   "America/New_York",
-	Output:     os.Stdout,
+}))
+```
+
+#### **Custom File Writer**
+```go
+file, err := os.OpenFile("./123.log", os.O_RDWR|os.O_CREATE|os.O_APPEND, 0666)
+if err != nil {
+	log.Fatalf("error opening file: %v", err)
+}
+defer file.Close()
+
+app.Use(logger.New(logger.Config{
+	Output: file,
 }))
 ```