Add projects

backend/internal/util/gjson.go

@@ -0,0 +1,27 @@
+package util
+
+import (
+	"unsafe"
+
+	"github.com/tidwall/gjson"
+)
+
+// GetGJSONBytesNoCopy returns a GJSON result that may reference data directly.
+// Callers must not retain the result or mutate data while using it.
+func GetGJSONBytesNoCopy(data []byte, path string) gjson.Result {
+	if len(data) == 0 {
+		return gjson.Result{}
+	}
+	return gjson.Get(unsafe.String(unsafe.SliceData(data), len(data)), path)
+}
+
+// ParseGJSONBytesNoCopy parses data into a GJSON result that references data
+// directly. gjson.ParseBytes copies the whole document, which is prohibitive
+// for multi-megabyte payloads. Callers must not retain the result or mutate
+// data while using it.
+func ParseGJSONBytesNoCopy(data []byte) gjson.Result {
+	if len(data) == 0 {
+		return gjson.Result{}
+	}
+	return gjson.Parse(unsafe.String(unsafe.SliceData(data), len(data)))
+}