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Reduce DB write amplification on quota and account extra updates

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This commit is contained in:
ius
2026-03-11 13:53:19 +08:00
parent 7455476c60
commit 2694149489
8 changed files with 396 additions and 9 deletions
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26
backend/internal/repository/api_key_repo.go
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@@ -452,6 +452,32 @@ func (r *apiKeyRepository) IncrementQuotaUsed(ctx context.Context, id int64, amo
return updated.QuotaUsed, nil
}
// IncrementQuotaUsedAndGetState atomically increments quota_used, conditionally marks the key
// as quota_exhausted, and returns the latest quota state in one round trip.
func (r *apiKeyRepository) IncrementQuotaUsedAndGetState(ctx context.Context, id int64, amount float64) (*service.APIKeyQuotaUsageState, error) {
query := `
UPDATE api_keys
SET
quota_used = quota_used + $1,
status = CASE
WHEN quota > 0 AND quota_used + $1 >= quota THEN $2
ELSE status
END,
updated_at = NOW()
WHERE id = $3 AND deleted_at IS NULL
RETURNING quota_used, quota, key, status
`
state := &service.APIKeyQuotaUsageState{}
if err := scanSingleRow(ctx, r.sql, query, []any{amount, service.StatusAPIKeyQuotaExhausted, id}, &state.QuotaUsed, &state.Quota, &state.Key, &state.Status); err != nil {
if err == sql.ErrNoRows {
return nil, service.ErrAPIKeyNotFound
}
return nil, err
}
return state, nil
}
func (r *apiKeyRepository) UpdateLastUsed(ctx context.Context, id int64, usedAt time.Time) error {
affected, err := r.client.APIKey.Update().
Where(apikey.IDEQ(id), apikey.DeletedAtIsNil()).