fiber/middleware/expvar/expvar.go

35 lines
723 B
Go

package expvar
import (
"strings"
"github.com/gofiber/fiber/v3"
"github.com/valyala/fasthttp/expvarhandler"
)
// New creates a new middleware handler
func New(config ...Config) fiber.Handler {
// Set default config
cfg := configDefault(config...)
// Return new handler
return func(c fiber.Ctx) error {
// Don't execute middleware if Next returns true
if cfg.Next != nil && cfg.Next(c) {
return c.Next()
}
path := c.Path()
// We are only interested in /debug/vars routes
if len(path) < 11 || !strings.HasPrefix(path, "/debug/vars") {
return c.Next()
}
if path == "/debug/vars" {
expvarhandler.ExpvarHandler(c.RequestCtx())
return nil
}
return c.Redirect().To("/debug/vars")
}
}