move redis config over to config file

data/config.example.json

@@ -14,7 +14,11 @@
   "server_config": {
     "port": 8080,
     "base_url": "https://profile.example.com",
-    "session_store": "redis"
+    "session_store": "redis",
+    "redis_config": {
+      "redis_url": "redis://localhost:6379/0",
+      "prefix": ""
+    }
   },
   "email_config": {
     "username": "noreply",

src/main/config.go

@@ -21,10 +21,16 @@ type StyleConfig struct {
 	LogoPath    string `json:"logo_path"`
 }
 
+type RedisConfig struct {
+	RedisURL string `json:"redis_url"`
+	Prefix   string `json:"prefix"`
+}
+
 type WebserverConfig struct {
 	Port            int         `json:"port"`
 	BaseURL         string      `json:"base_url"`
 	SessionStore    string      `json:"session_store"`
+	RedisConfigInfo RedisConfig `json:"redis_config"`
 }
 
 type EmailConfig struct {

src/main/main.go

@@ -232,7 +232,7 @@ func main() {
 	if serverConfig.WebserverConfig.SessionStore == "in_memory" {
 		sessionManager.SetStoreType(session.InMemory)
 	} else if serverConfig.WebserverConfig.SessionStore == "redis" {
-		sessionManager.SetStoreType(session.Redis)
+		sessionManager.SetStoreType(session.Redis, serverConfig.WebserverConfig.RedisConfigInfo.RedisURL, serverConfig.WebserverConfig.RedisConfigInfo.Prefix)
 	} else {
 		logging.Warnf("'%s' is an unknown session store type defaulting to in memory", serverConfig.WebserverConfig.SessionStore)
 		sessionManager.SetStoreType(session.InMemory)

src/session/session_manager.go

@@ -33,7 +33,7 @@ func GetSessionManager() *SessionManager {
 	return instance
 }
 
-func (manager *SessionManager) SetStoreType(storeType StoreType) {
+func (manager *SessionManager) SetStoreType(storeType StoreType, params ...any) {
 	logging.Infof("Changing session manager store type")
 	switch storeType {
 	case InMemory:
@@ -47,7 +47,9 @@ func (manager *SessionManager) SetStoreType(storeType StoreType) {
 		}
 	case Redis:
 		{
-			manager.store = store.NewRedisStore[*SessionData]()
+			url, _ := params[0].(string)
+			prefix, _ := params[1].(string)
+			manager.store = store.NewRedisStore[*SessionData](url, prefix)
 			break
 		}
 	}

src/store/store_redis.go

@@ -19,12 +19,9 @@ func (m *RedisStore[Value]) RedisHash(value_to_hash string) string {
 	return m.prefix + HashKey(value_to_hash)
 }
 
-func NewRedisStore[Value any]() *RedisStore[Value] {
+func NewRedisStore[Value any](redis_server string, prefix string) *RedisStore[Value] {
 	logging.Debug("Creating new redis session store")
 
-	// this will be replaced with a URL that can be parsed in the config file
-	redis_server := "redis://localhost:6379/0"
-
 	opts, err := redis.ParseURL(redis_server)
 	if err != nil {
 		logging.Errorf("Failed to parse redis url %s", err.Error())
@@ -42,7 +39,7 @@ func NewRedisStore[Value any]() *RedisStore[Value] {
 	store := &RedisStore[Value]{
 		client: rdb,
 		ctx:    ctx,
-		prefix: "random_string_1",
+		prefix: prefix,
 	}
 	return store
 }