Add production hardening: monitoring, backups, caching, and high-traffic resilience
- Recovery middleware (no more crash-on-panic), request metrics/monitoring store + admin API, in-memory TTL caching for read-heavy option/question/ category lookups, gzip + rate-limiting middleware, sanitized chat message encoding, and pg_dump-based database backups with an admin API. - Fix N+1 queries in the discover feed, candidate detail, and match list endpoints by batching selection/photo/user/last-message lookups into single queries instead of one-per-item loops. - Tune DB connection pooling and add HTTP server timeouts + graceful shutdown so the API degrades gracefully instead of falling over under load. - Fix a null (vs empty array) JSON response for candidates/matches without photos or interests, which crashed the web app's swipe card.
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@@ -34,6 +34,18 @@ func (r *UserRepository) FindByID(id uint) (*models.User, error) {
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return &user, nil
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}
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// FindByIDs چند کاربر رو با هم در یک کوئری برمیگردونه (بهجای یک FindByID
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// جدا بهازای هر id)؛ برای لیستهایی مثل مچها که باید اطلاعات طرف مقابل
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// چندین مچ رو یکجا نشون بدن.
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func (r *UserRepository) FindByIDs(ids []uint) ([]models.User, error) {
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var users []models.User
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if len(ids) == 0 {
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return users, nil
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}
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err := r.db.Where("id IN ?", ids).Find(&users).Error
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return users, err
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}
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// GetOrCreateByPhone کاربر را با شمارهی دادهشده پیدا میکند یا در صورت نبود میسازد.
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func (r *UserRepository) GetOrCreateByPhone(phone string) (*models.User, bool, error) {
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var user models.User
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