first commit

pkg/utils/db_utils.go

@@ -0,0 +1,19 @@
+package utils
+
+import (
+	"errors"
+	"strings"
+
+	"github.com/jackc/pgx/v5/pgconn"
+)
+
+// IsDuplicateKeyError checks if the error is a PostgreSQL duplicate key violation
+func IsDuplicateKeyError(err error) bool {
+	var pgErr *pgconn.PgError
+	if errors.As(err, &pgErr) {
+		// 23505 is the PostgreSQL error code for unique_violation
+		return pgErr.Code == "23505"
+	}
+	// Fallback for other drivers or if error wrapping is different
+	return strings.Contains(err.Error(), "duplicate key value violates unique constraint")
+}