an http authentication API for the Go programming language. Integrates with 3rd party auth providers to add security to your web application.

go get github.com/dchest/authcookie
go get github.com/bradrydzewski/go.auth

Python's Tornado framework, specifically their auth module, was the main inspiration for this library.

The following auth providers are supported:

• Github OAuth 2.0 demo
• Google OAuth 2.0 demo
• Google OpenId 2.0 demo
• Twitter OAuth 1.0a demo

We plan to add support for the following providers:

• Facebook
• LinkedIn

Example program using the Google OpenId auth provider:

// Set the default authentication configuration parameters
auth.Config.CookieSecret         = []byte("asdfasdfasfasdfasdfafsd")
auth.Config.LoginRedirect        = "/auth/login"
auth.Config.LoginSuccessRedirect = "/private"

// Create your login handler
githubHandler := auth.NewGithubHandler(githubAccessKey, githubSecretKey)
http.Handle("/auth/login", githubHandler)

// Example of a public http handler
http.HandleFunc("/public", Public)

// Example of a secured http handler
http.HandleFunc("/private", auth.SecureFunc(Private))

You can even mix and match. See the multi-provider demo application.

The user data is passed to your Handler via the URL's User field:

func Foo(w http.ResponseWriter, r *http.Request) {
	user := r.URL.User.Username()
}

go.auth uses the following default parameters which can be configured:

Example:

auth.Config.LoginRedirect = "/auth/login/google"