JWT Auth Module for Revel Go Framework

Pluggable and easy to use JWT auth module.

Module Configuration

auth.jwt.realm.name = "REVEL-JWT-AUTH"                  // default is REVEL-JWT-AUTH
auth.jwt.issuer = "REVEL-JWT-AUTH" 				        // use appropriate values (string, URL), default is REVEL-JWT-AUTH
auth.jwt.expiration = 30						        // In minutes, default is 60 minutes
auth.jwt.key.private = "/Users/jeeva/private.rsa"
auth.jwt.key.public = "/Users/jeeva/public.rsa.pub"
auth.jwt.anonymous = "/token, /freepass/.*"  				// Valid regexp allowed for path

Enabling Auth Module

Add module.jwtauth = github.com/jeevatkm/jwtauth into conf/app.conf

Registering Auth Routes

Add module:jwtauth into conf/routes. Auth modules enables following routes

# JWT Auth Routes
POST	/token									JwtAuth.Token
GET		/refresh-token							JwtAuth.RefreshToken
GET		/logout									JwtAuth.Logout

Registering Auth Filter

Revel Filter for JWT Auth Token verification. Register it in the revel.Filters in <APP_PATH>/app/init.go

// Add jwt.AuthFilter anywhere deemed appropriate, it must be register after revel.PanicFilter
revel.Filters = []revel.Filter{
  revel.PanicFilter,
	...
	jwt.AuthFilter,		// JWT Auth Token verification for Request Paths
	...
}
// Note: If everything looks good then Claims map made available via c.Args
// and can be accessed using c.Args[jwt.TOKEN_CLAIMS_KEY]

Register Auth Handler

Auth handler is responsible for validate user and returning Subject (aka sub) value and success/failure boolean. It should comply AuthHandler interface or use raw func via jwt.AuthHandlerFunc.

revel.OnAppStart(func() {
	jwt.Init(&MyAuth{})
	//          OR
	jwt.Init(jwt.AuthHandlerFunc(func(username, password string) (string, bool) {
		revel.INFO.Printf("Username: %v, Password: %v", username, password)
		return "This is my subject value from function", true
	}))
})