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Redis Watcher

Go report Coverage Status Go Reference Release

Redis Watcher is a Redis watcher for Casbin.

Installation

go get github.com/casbin/redis-watcher/v2

Simple Example

package main

import (
	"log"

	"github.com/casbin/casbin/v2"
	rediswatcher "github.com/casbin/redis-watcher/v2"
	"github.com/go-redis/redis/v8"
)

func updateCallback(msg string) {
	log.Println(msg)
}

func main() {
	// Initialize the watcher.
	// Use the Redis host as parameter.
	w, _ := rediswatcher.NewWatcher("localhost:6379", rediswatcher.WatcherOptions{
		Options: redis.Options{
			Network:  "tcp",
			Password: "",
		},
		Channel:    "/casbin",
		// Only exists in test, generally be true
		IgnoreSelf: false,
	})

	// Or initialize the watcher in redis cluster.
	// w, _ := rediswatcher.NewWatcherWithCluster("localhost:6379,localhost:6379,localhost:6379", rediswatcher.WatcherOptions{
	// 	ClusterOptions: redis.ClusterOptions{
	// 		Password: "",
	// 	},
	// 	Channel: "/casbin",
	// 	IgnoreSelf: false,
	// })

	// Initialize the enforcer.
	e, _ := casbin.NewEnforcer("examples/rbac_model.conf", "examples/rbac_policy.csv")

	// Set the watcher for the enforcer.
	_ = e.SetWatcher(w)

	// Set callback to local example
	_ = w.SetUpdateCallback(updateCallback)
	
	// Or use the default callback
	// _ = w.SetUpdateCallback(rediswatcher.DefaultUpdateCallback(e))

	// Update the policy to test the effect.
	// You should see "[casbin rules updated]" in the log.
	_ = e.SavePolicy()
	// Only exists in test
	fmt.Scanln()
}

Getting Help

License

This project is under Apache 2.0 License. See the LICENSE file for the full license text.



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