# go-session-redis
Simple HTTP session management

## Example middleware
```go
func SessionAuthenticator(manager *session.Manager, next http.Handler) http.Handler {
    return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
        s, err := manager.GetSession(w, r)
        if errors.Is(err, session.ErrSessionNotFound) {
            http.Error(w, "Not authenticated", http.StatusUnauthorized)
            return
        }
        if err != nil {
            http.Error(w, err.Error(), http.StatusBadGateway)
            return
        }

        userID, ok := s.Get("user_id").(string)
        if !ok || userID == "" {
            http.Error(w, "Not authenticated", http.StatusUnauthorized)
            return
        }

        // GetSession refreshes the TTL.
        next.ServeHTTP(w, r)
    })
}
```

## Creating a session
```go
func CreateAuthenticatedSession(manager *session.Manager, w http.ResponseWriter, r *http.Request, userID string) error {
    s, err := manager.CreateSession(w, r)
    if err != nil {
        return err
    }
    return s.Set("user_id", userID)
}
```