snapshot of https://github.com/ory/keto.git (master, 2026-09-16; blobs > 131072B omitted)

oryx/jsonx/flatten.go

@@ -0,0 +1,39 @@
+// Copyright © 2023 Ory Corp
+// SPDX-License-Identifier: Apache-2.0
+
+package jsonx
+
+import (
+	"encoding/json"
+	"strconv"
+	"strings"
+
+	"github.com/tidwall/gjson"
+)
+
+// Flatten flattens a JSON object using dot notation.
+func Flatten(raw json.RawMessage) map[string]interface{} {
+	parsed := gjson.ParseBytes(raw)
+	if !parsed.IsObject() {
+		return nil
+	}
+
+	flattened := make(map[string]interface{})
+	flatten(parsed, nil, flattened)
+	return flattened
+}
+
+func flatten(parsed gjson.Result, parents []string, flattened map[string]interface{}) {
+	if parsed.IsObject() {
+		parsed.ForEach(func(k, v gjson.Result) bool {
+			flatten(v, append(parents, strings.ReplaceAll(k.String(), ".", "\\.")), flattened)
+			return true
+		})
+	} else if parsed.IsArray() {
+		for kk, vv := range parsed.Array() {
+			flatten(vv, append(parents, strconv.Itoa(kk)), flattened)
+		}
+	} else {
+		flattened[strings.Join(parents, ".")] = parsed.Value()
+	}
+}