diff --git a/README.md b/README.md index 9dde693d..467db3fc 100644 --- a/README.md +++ b/README.md @@ -490,6 +490,39 @@ func main() { } ``` +### Custom Recovery behavior +```go +func main() { + // Creates a router without any middleware by default + r := gin.New() + + // Global middleware + // Logger middleware will write the logs to gin.DefaultWriter even if you set with GIN_MODE=release. + // By default gin.DefaultWriter = os.Stdout + r.Use(gin.Logger()) + + // Recovery middleware recovers from any panics and writes a 500 if there was one. + r.Use(gin.CustomRecovery(func(c *gin.Context, recovered interface{}) { + if err, ok := recovered.(string); ok { + c.String(http.StatusInternalServerError, fmt.Sprintf("error: %s", err)) + } + c.AbortWithStatus(http.StatusInternalServerError) + })) + + r.GET("/panic", func(c *gin.Context) { + // panic with a string -- the custom middleware could save this to a database or report it to the user + panic("foo") + }) + + r.GET("/", func(c *gin.Context) { + c.String(http.StatusOK, "ohai") + }) + + // Listen and serve on 0.0.0.0:8080 + r.Run(":8080") +} +``` + ### How to write log file ```go func main() {