Custom Middleware

  1. func Logger() gin.HandlerFunc {
  2.     return func(c *gin.Context) {
  3.         t := time.Now()
  5.         // Set example variable
  6.         c.Set("example", "12345")
  8.         // before request
  10.         c.Next()
  12.         // after request
  13.         latency := time.Since(t)
  14.         log.Print(latency)
  16.         // access the status we are sending
  17.         status := c.Writer.Status()
  18.         log.Println(status)
  19.     }
  20. }
  22. func main() {
  23.     r := gin.New()
  24.     r.Use(Logger())
  26.     r.GET("/test", func(c *gin.Context) {
  27.         example := c.MustGet("example").(string)
  29.         // it would print: "12345"
  30.         log.Println(example)
  31.     })
  33.     // Listen and serve on 0.0.0.0:8080
  34.     r.Run(":8080")
  35. }