user no stays in cache forever, fix some hubs bugs and add new enpoints

packages/postgresql/postgresql.go

@@ -181,6 +181,19 @@ func ConnectionDelete(ctx context.Context, conn *types.Connection) error {
 	return err
 }
 
+func ConnectionGetById(ctx context.Context, id uuid.UUID) (*types.Connection, error) {
+	conn := types.NewConn()
+	err := dbConn.QueryRow(ctx, `
+		SELECT id, requestor_id, recipient_id, state, created_at
+		FROM user_connections
+		WHERE id = $1
+	`, id).Scan(&conn.Id, &conn.RequestorId, &conn.RecipientId, &conn.State, &conn.CreatedAt)
+	if err != nil {
+		return nil, err
+	}
+	return conn, nil
+}
+
 func ConnectionsGetBelongingToUser(ctx context.Context, user *types.User) error {
 	rows, err := dbConn.Query(ctx, `
 		SELECT id, requestor_id, recipient_id, state, created_at