Lightweight middleware package

This is a Golang package, that implements middleware pattern. Just 37 lines of code.

Installation

# run this command
go get github.com/WajoxSoftware/middleware

# import package
import (
    // ... some packages
    "github.com/WajoxSoftware/middleware"
    // ... some packages
)

Usage example

/**
 * router and auth implements MiddlewareHandler interface
 * 
 */

package main

import (
    // ... some packages
    "github.com/WajoxSoftware/middleware"
)

// ... some code

mware := middleware.CreateNewMiddleware()
mware.AddHandler(auth)
mware.AddHandler(router)

// ... some code

Definition of MiddlewareHandler interface

import (
    "net/http"
)

type MiddlewareHandler interface {
    ServeHTTP(w http.ResponseWriter, r *http.Request)
}

MiddlewareHandler example

import (
    "net/http"
)
// ...
type Auth struct {
    AuthToken string
}

func CreateNewAuth(authToken string) *Auth {
    return &Auth{authToken}
}

func (a Auth) ServeHTTP(w http.ResponseWriter, r *http.Request) bool {
    isValidToken := a.AuthToken == r.URL.Query().Get("token")

    if (!isValidToken) {
        w.WriteHeader(403)

        return false
    }

    return true
}
// ...