Awesome

Alien

Alien is a lightweight http router( multiplexer) for Go( Golang ), made for humans who don't like magic.

Documentation docs

Features

• fast ( see the benchmarks, or run them yourself)
• lightweight ( just a single file read all of it in less than a minute)
• safe( designed with concurrency in mind)
• middleware support.
• routes groups
• no external dependency( only the standard library )

Motivation

I wanted a simple, fast, and lightweight router that has no unnecessary overhead using the standard library only, following good practices and well tested code( Over 90% coverage)

Installation

go get github.com/gernest/alien

Usage

normal static routes

package main

import (
	"log"
	"net/http"

	"github.com/gernest/alien"
)

func main() {
	m := alien.New()
	m.Get("/", func(w http.ResponseWriter, r *http.Request) {
		w.Write([]byte("hello world"))
	})
	log.Fatal(http.ListenAndServe(":8090", m))
}

visiting your localhost at path / will print hello world

named params

package main

import (
	"log"
	"net/http"

	"github.com/gernest/alien"
)

func main() {
	m := alien.New()
	m.Get("/hello/:name", func(w http.ResponseWriter, r *http.Request) {
		p := alien.GetParams(r)
		w.Write([]byte(p.Get("name")))
	})
	log.Fatal(http.ListenAndServe(":8090", m))
}

visiting your localhost at path /hello/tanzania will print tanzania

catch all params

package main

import (
	"log"
	"net/http"

	"github.com/gernest/alien"
)

func main() {
	m := alien.New()
	m.Get("/hello/*name", func(w http.ResponseWriter, r *http.Request) {
		p := alien.GetParams(r)
		w.Write([]byte(p.Get("name")))
	})
	log.Fatal(http.ListenAndServe(":8090", m))
}

visiting your localhost at path /hello/my/margicl/sheeplike/ship will print my/margical/sheeplike/ship

middlewares

Middlewares are anything that satisfy the interface func(http.Handler)http.Handler . Meaning you have thousands of middlewares at your disposal, you can use middlewares from many golang http frameworks on alien(most support the interface).

package main

import (
	"log"
	"net/http"

	"github.com/gernest/alien"
)

func middleware(h http.Handler) http.Handler {
	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		w.Write([]byte("hello middlware"))
	})
}

func main() {
	m := alien.New()
	m.Use(middleware)
	m.Get("/", func(_ http.ResponseWriter, _ *http.Request) {
	})
	log.Fatal(http.ListenAndServe(":8090", m))
}

visiting your localhost at path / will print hello middleware

groups

You can group routes

package main

import (
	"log"
	"net/http"

	"github.com/gernest/alien"
)

func main() {
	m := alien.New()
	g := m.Group("/home")
	m.Use(middleware)
	g.Get("/alone", func(w http.ResponseWriter, _ *http.Request) {
		w.Write([]byte("home alone"))
	})
	log.Fatal(http.ListenAndServe(":8090", m))
}

visiting your localhost at path /home/alone will print home alone

Contributing

Start with clicking the star button to make the author and his neighbors happy. Then fork the repository and submit a pull request for whatever change you want to be added to this project.

If you have any questions, just open an issue.

Author

Geofrey Ernest @gernesti on twitter

Licence

MIT see LICENSE