# README

Auth Library

This Go library provides authentication middleware and utilities for handling JWT tokens. It includes functionality for validating tokens, extracting claims, and managing user context. If the given token is valid, it extracts the claims and adds them to the request context.

Installation

To install the library, use go get:

go get github.com/softika/auth

Examples

Standard Library

package main

import (
    "log"
    "net/http"

    "github.com/softika/auth"
)

func main() {
    mux := http.NewServeMux()

    // init auth middleware
    a := auth.New(auth.Config{
        Secret: "your-secret",
    })

    // wrap the handler with the auth middleware
    mux.Handle("/protected", a.Handler(http.HandlerFunc(HandleProtectedInfo)))

    log.Fatal(http.ListenAndServe(":3000", mux))
}

func HandleProtectedInfo(w http.ResponseWriter, r *http.Request) {
    w.WriteHeader(http.StatusOK)
    w.Write([]byte("Protected Info!"))
}

Go Chi

package main

import (
    "log"
    "net/http"

    "github.com/go-chi/chi"
    "github.com/softika/auth"
)

func main() {
    r := chi.NewRouter()

    // init auth configuration
    cfg := auth.Config{
        Secret: "your-secret",
    }

    // wrap the handler with the auth middleware
    r.Use(auth.Handle(cfg))
    r.Get("/protected", HandleProtectedInfo)

    log.Fatal(http.ListenAndServe(":3000", r))
}

func HandleProtectedInfo(w http.ResponseWriter, r *http.Request) {
	w.WriteHeader(http.StatusOK)
	w.Write([]byte("Protected Info!"))
}