feat: add protobuf message compression and decompression for Redis; refactor product fetching logic

pkg/utils/utils.go

@@ -3,6 +3,7 @@ package utils
 import (
 	"encoding/json"
 	"fmt"
+
 	"github.com/golang-jwt/jwt/v5"
 )
 
@@ -30,3 +31,21 @@ func DecodeWildberriesJwt(token []byte) (WbAuthData, jwt.MapClaims, error) {
 
 	return authData, claims, nil
 }
+
+func ToPtrs[T any](s []T) []*T {
+	res := make([]*T, len(s))
+	for i := range s {
+		res[i] = &s[i]
+	}
+	return res
+}
+
+func DerefSlice[T any](s []*T) []T {
+	res := make([]T, len(s))
+	for i := range s {
+		if s[i] != nil {
+			res[i] = *s[i]
+		}
+	}
+	return res
+}