Testing cache mechanism using gob encoding and Redis.

main.go

package main

import (
	"bytes"
	"context"
	"encoding/gob"
	"fmt"
	"time"

	"github.com/gomodule/redigo/redis"
)

type User struct {
	Address string
	Name    string
}

func main() {
	pool := &redis.Pool{
		DialContext: func(ctx context.Context) (redis.Conn, error) {
			return redis.Dial("tcp", "localhost:6379")
		},

		MaxIdle:     1024,
		IdleTimeout: 5 * time.Minute,
	}

	conn := pool.Get()
	defer conn.Close()

	u := User{Address: "tokyo", Name: "bob"}

	// Save
	var buf bytes.Buffer
	gob.NewEncoder(&buf).Encode(u)

	// Reset
	u = User{}

	conn.Do("SET", "test", buf.Bytes())

	// Load
	bs, _ := redis.Bytes(conn.Do("GET", "test"))
	bytesReader := bytes.NewReader(bs)

	var loadUser User
	gob.NewDecoder(bytesReader).Decode(&loadUser)

	fmt.Println(loadUser)
}