Simple example/skeleton code for writing a middleware handler.
package moose
import (
"log"
"net/http"
)
type Middleware struct {
moose bool
}
// Middleware is a struct that has a ServeHTTP method
func NewMiddleware() *Middleware {
return &Middleware{true}
}
// The middleware handler
func (l *Middleware) ServeHTTP(w http.ResponseWriter, req *http.Request, next http.HandlerFunc) {
// Log moose status
log.Printf("MOOSE: %v\n", l.moose)
// Call the next middleware handler
next(w, req)
}
package main
import (
"fmt"
"net/http"
"github.com/urfave/negroni"
"github.com/xyproto/mooseware"
)
func main() {
mux := http.NewServeMux()
mux.HandleFunc("/", func(w http.ResponseWriter, req *http.Request) {
fmt.Fprint(w, "Bafflesnark!")
})
n := negroni.Classic()
// Moose status
n.Use(moose.NewMiddleware())
// Handler goes last
n.UseHandler(mux)
// Serve
n.Run(":3000")
}
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