Create redis session engine

app/cfg/cfg.go

@@ -10,13 +10,6 @@ import (
 )
 
 type configStruct struct {
-	Database struct {
-		Host     string `yaml:"host"`
-		Port     string `yaml:"port"`
-		Name     string `yaml:"name"`
-		Username string `yaml:"username"`
-		Password string `yaml:"password" json:"-"`
-	} `yaml:"database"`
 	Application struct {
 		SecretKey       string `yaml:"secretKey" json:"-"`
 		LogLevel        string `yaml:"logLevel"`
@@ -27,6 +20,21 @@ type configStruct struct {
 		IsProduction    bool   `yaml:"isProduction"`
 		LoopDelay       uint32 `yaml:"loopDelay"`
 	} `yaml:"application"`
+	Database struct {
+		Host     string `yaml:"host"`
+		Port     string `yaml:"port"`
+		Name     string `yaml:"name"`
+		Username string `yaml:"username"`
+		Password string `yaml:"password" json:"-"`
+	} `yaml:"database"`
+	Redis struct {
+		Host     string `yaml:"host"`
+		Port     int    `yaml:"port"`
+		Username string `yaml:"username"`
+		Password string `yaml:"password" json:"-"`
+		Database string `yaml:"database"`
+		Prefix   string `yaml:"prefix"`
+	} `yaml:"redis"`
 	SMTP struct {
 		Host      string `yaml:"host"`
 		Port      int    `yaml:"port"`
@@ -81,6 +89,7 @@ func Init() {
 
 	maskedCfg := Config
 	maskedCfg.Database.Password = "**password hidden**"
+	maskedCfg.Redis.Password = "**password hidden**"
 	maskedCfg.SMTP.Password = "**password hidden**"
 	maskedCfg.Application.SecretKey = "**secret key hidden**"
 

app/main.go

@@ -1,16 +1,53 @@
 package main
 
 import (
+	"fmt"
 	"iris-test/app/cfg"
 	"iris-test/app/db"
 	"iris-test/app/logging"
 	"iris-test/app/views"
+	"time"
 
 	"github.com/kataras/iris/v12"
+	"github.com/kataras/iris/v12/sessions"
+	"github.com/kataras/iris/v12/sessions/sessiondb/redis"
 )
 
+var redisDB *redis.Database
+
+func createSessionEngine() *sessions.Sessions {
+	redisAddr := fmt.Sprintf("%s:%d", cfg.Config.Redis.Host, cfg.Config.Redis.Port)
+
+	redisDB = redis.New(redis.Config{
+		Network:   "tcp",
+		Addr:      redisAddr,
+		Timeout:   time.Duration(30) * time.Second,
+		MaxActive: 10,
+		Username:  cfg.Config.Redis.Username,
+		Password:  cfg.Config.Redis.Password,
+		Database:  cfg.Config.Redis.Database,
+		Prefix:    cfg.Config.Redis.Prefix,
+		Driver:    redis.GoRedis(), // defaults to this driver.
+		// To set a custom, existing go-redis client, use the "SetClient" method:
+		// Driver: redis.GoRedis().SetClient(customGoRedisClient)
+	})
+
+	sessions_engine := sessions.New(sessions.Config{
+		Cookie:          "_session_id",
+		Expires:         0, // defaults to 0: unlimited life. Another good value is: 45 * time.Minute,
+		AllowReclaim:    true,
+		CookieSecureTLS: true,
+	})
+
+	sessions_engine.UseDatabase(redisDB)
+
+	return sessions_engine
+}
+
 func createApp() *iris.Application {
+	sessions_engine := createSessionEngine()
 	app := iris.New()
+	app.Use(sessions_engine.Handler())
 	app.RegisterView(iris.Jet("./app/templates", ".jet").Reload(true))
 	views.CreateRouter(app)
 	return app
@@ -22,5 +59,6 @@ func main() {
 	db.InitDB()
 
 	app := createApp()
+	defer redisDB.Close()
 	app.Listen(":8000")
 }

config.template.yaml

@@ -1,11 +1,3 @@
-# Database credentials
-database:
-  host: "localhost"
-  port: 5432
-  name: "iristest"
-  username: "iristest"
-  password: "iristest"
-
 application:
   secretKey: "secret-key"
   logLevel: info
@@ -14,6 +6,21 @@ application:
   isProduction: false
   loopDelay: 3000
 
+database:
+  host: "localhost"
+  port: 5432
+  name: "iristest"
+  username: "iristest"
+  password: "iristest"
+
+redis:
+  host: "localhost"
+  port: 6379
+  username: "iristest"
+  password: "iristest"
+  database: ""
+  prefix: "myapp-"
+
 smtp:
   host: "smtp-host"
   port: 587

go.mod

@@ -19,6 +19,8 @@ require (
 	github.com/Shopify/goreferrer v0.0.0-20220729165902-8cddb4f5de06 // indirect
 	github.com/andybalholm/brotli v1.0.6 // indirect
 	github.com/aymerick/douceur v0.2.0 // indirect
+	github.com/cespare/xxhash/v2 v2.2.0 // indirect
+	github.com/dgryski/go-rendezvous v0.0.0-20200823014737-9f7001d12a5f // indirect
 	github.com/fatih/structs v1.1.0 // indirect
 	github.com/flosch/pongo2/v4 v4.0.2 // indirect
 	github.com/golang/snappy v0.0.4 // indirect
@@ -41,6 +43,7 @@ require (
 	github.com/mailgun/raymond/v2 v2.0.48 // indirect
 	github.com/mailru/easyjson v0.7.7 // indirect
 	github.com/microcosm-cc/bluemonday v1.0.26 // indirect
+	github.com/redis/go-redis/v9 v9.2.0 // indirect
 	github.com/rogpeppe/go-internal v1.11.0 // indirect
 	github.com/russross/blackfriday/v2 v2.1.0 // indirect
 	github.com/schollz/closestmatch v2.1.0+incompatible // indirect

go.sum

@@ -16,9 +16,14 @@ github.com/andybalholm/brotli v1.0.6 h1:Yf9fFpf49Zrxb9NlQaluyE92/+X7UVHlhMNJN2sx
 github.com/andybalholm/brotli v1.0.6/go.mod h1:fO7iG3H7G2nSZ7m0zPUDn85XEX2GTukHGRSepvi9Eig=
 github.com/aymerick/douceur v0.2.0 h1:Mv+mAeH1Q+n9Fr+oyamOlAkUNPWPlA8PPGR0QAaYuPk=
 github.com/aymerick/douceur v0.2.0/go.mod h1:wlT5vV2O3h55X9m7iVYN0TBM0NH/MmbLnd30/FjWUq4=
+github.com/cespare/xxhash v1.1.0 h1:a6HrQnmkObjyL+Gs60czilIUGqrzKutQD6XZog3p+ko=
+github.com/cespare/xxhash/v2 v2.2.0 h1:DC2CZ1Ep5Y4k3ZQ899DldepgrayRUGE6BBZ/cd9Cj44=
+github.com/cespare/xxhash/v2 v2.2.0/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/dgryski/go-rendezvous v0.0.0-20200823014737-9f7001d12a5f h1:lO4WD4F/rVNCu3HqELle0jiPLLBs70cWOduZpkS1E78=
+github.com/dgryski/go-rendezvous v0.0.0-20200823014737-9f7001d12a5f/go.mod h1:cuUVRXasLTGF7a8hSLbxyZXjz+1KgoB3wDUb6vlszIc=
 github.com/fatih/color v1.15.0 h1:kOqh6YHBtK8aywxGerMG2Eq3H6Qgoqeo13Bk2Mv/nBs=
 github.com/fatih/color v1.15.0/go.mod h1:0h5ZqXfHYED7Bhv2ZJamyIOUej9KtShiJESRwBDUSsw=
 github.com/fatih/structs v1.1.0 h1:Q7juDM0QtcnhCpeyLGQKyg4TOIghuNXrkL32pHAUMxo=
@@ -98,6 +103,8 @@ github.com/mitchellh/go-wordwrap v1.0.1/go.mod h1:R62XHJLzvMFRBbcrT7m7WgmE1eOyTS
 github.com/niemeyer/pretty v0.0.0-20200227124842-a10e7caefd8e/go.mod h1:zD1mROLANZcx1PVRCS0qkT7pwLkGfwJo4zjcN/Tysno=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
+github.com/redis/go-redis/v9 v9.2.0 h1:zwMdX0A4eVzse46YN18QhuDiM4uf3JmkOB4VZrdt5uI=
+github.com/redis/go-redis/v9 v9.2.0/go.mod h1:hdY0cQFCN4fnSYT6TkisLufl/4W5UIXyv0b/CLO2V2M=
 github.com/rogpeppe/go-internal v1.11.0 h1:cWPaGQEPrBb5/AsnsZesgZZ9yb1OQ+GOISoDNXVBh4M=
 github.com/rogpeppe/go-internal v1.11.0/go.mod h1:ddIwULY96R17DhadqLgMfk9H9tvdUzkipdSkR5nkCZA=
 github.com/russross/blackfriday/v2 v2.1.0 h1:JIOH55/0cWyOuilr9/qlrm0BSXldqnqwMsf35Ld67mk=