diff --git a/td/telegram/ChatReactions.cpp b/td/telegram/ChatReactions.cpp
index 879be05f3..ffe20108f 100644
--- a/td/telegram/ChatReactions.cpp
+++ b/td/telegram/ChatReactions.cpp
@@ -25,9 +25,7 @@ ChatReactions::ChatReactions(telegram_api::object_ptr<telegram_api::ChatReaction
     }
     case telegram_api::chatReactionsSome::ID: {
       auto chat_reactions = move_tl_object_as<telegram_api::chatReactionsSome>(chat_reactions_ptr);
-      reaction_types_ = transform(
-          chat_reactions->reactions_,
-          [](const telegram_api::object_ptr<telegram_api::Reaction> &reaction) { return ReactionType(reaction); });
+      reaction_types_ = ReactionType::get_reaction_types(chat_reactions->reactions_);
       break;
     }
     default:
@@ -47,9 +45,7 @@ ChatReactions::ChatReactions(td_api::object_ptr<td_api::ChatAvailableReactions>
       break;
     case td_api::chatAvailableReactionsSome::ID: {
       auto chat_reactions = move_tl_object_as<td_api::chatAvailableReactionsSome>(chat_reactions_ptr);
-      reaction_types_ =
-          transform(chat_reactions->reactions_,
-                    [](const td_api::object_ptr<td_api::ReactionType> &reaction) { return ReactionType(reaction); });
+      reaction_types_ = ReactionType::get_reaction_types(chat_reactions->reactions_);
       break;
     }
     default:
@@ -82,8 +78,8 @@ td_api::object_ptr<td_api::ChatAvailableReactions> ChatReactions::get_chat_avail
   if (allow_all_regular_) {
     return td_api::make_object<td_api::chatAvailableReactionsAll>();
   }
-  return td_api::make_object<td_api::chatAvailableReactionsSome>(transform(
-      reaction_types_, [](const ReactionType &reaction_type) { return reaction_type.get_reaction_type_object(); }));
+  return td_api::make_object<td_api::chatAvailableReactionsSome>(
+      ReactionType::get_reaction_types_object(reaction_types_));
 }
 
 telegram_api::object_ptr<telegram_api::ChatReactions> ChatReactions::get_input_chat_reactions() const {
@@ -95,8 +91,8 @@ telegram_api::object_ptr<telegram_api::ChatReactions> ChatReactions::get_input_c
     return telegram_api::make_object<telegram_api::chatReactionsAll>(flags, allow_all_custom_);
   }
   if (!reaction_types_.empty()) {
-    return telegram_api::make_object<telegram_api::chatReactionsSome>(transform(
-        reaction_types_, [](const ReactionType &reaction_type) { return reaction_type.get_input_reaction(); }));
+    return telegram_api::make_object<telegram_api::chatReactionsSome>(
+        ReactionType::get_input_reactions(reaction_types_));
   }
   return telegram_api::make_object<telegram_api::chatReactionsNone>();
 }
diff --git a/td/telegram/MessageReaction.cpp b/td/telegram/MessageReaction.cpp
index 91649f8db..865d02b94 100644
--- a/td/telegram/MessageReaction.cpp
+++ b/td/telegram/MessageReaction.cpp
@@ -123,11 +123,9 @@ class SendReactionQuery final : public Td::ResultHandler {
     }
 
     send_query(G()->net_query_creator().create(
-        telegram_api::messages_sendReaction(
-            flags, false /*ignored*/, false /*ignored*/, std::move(input_peer),
-            message_full_id.get_message_id().get_server_message_id().get(),
-            transform(reaction_types,
-                      [](const ReactionType &reaction_type) { return reaction_type.get_input_reaction(); })),
+        telegram_api::messages_sendReaction(flags, false /*ignored*/, false /*ignored*/, std::move(input_peer),
+                                            message_full_id.get_message_id().get_server_message_id().get(),
+                                            ReactionType::get_input_reactions(reaction_types)),
         {{dialog_id_}, {message_full_id}}));
   }
 
diff --git a/td/telegram/ReactionManager.cpp b/td/telegram/ReactionManager.cpp
index 017e055aa..f95a028e1 100644
--- a/td/telegram/ReactionManager.cpp
+++ b/td/telegram/ReactionManager.cpp
@@ -627,9 +627,7 @@ void ReactionManager::on_get_recent_reactions(tl_object_ptr<telegram_api::messag
 
   CHECK(constructor_id == telegram_api::messages_reactions::ID);
   auto reactions = move_tl_object_as<telegram_api::messages_reactions>(reactions_ptr);
-  auto new_reaction_types = transform(
-      reactions->reactions_,
-      [](const telegram_api::object_ptr<telegram_api::Reaction> &reaction) { return ReactionType(reaction); });
+  auto new_reaction_types = ReactionType::get_reaction_types(reactions->reactions_);
   if (new_reaction_types == recent_reactions_.reaction_types_ && recent_reactions_.hash_ == reactions->hash_) {
     LOG(INFO) << "Top reactions are not modified";
     return;
@@ -663,9 +661,7 @@ void ReactionManager::on_get_top_reactions(tl_object_ptr<telegram_api::messages_
 
   CHECK(constructor_id == telegram_api::messages_reactions::ID);
   auto reactions = move_tl_object_as<telegram_api::messages_reactions>(reactions_ptr);
-  auto new_reaction_types = transform(
-      reactions->reactions_,
-      [](const telegram_api::object_ptr<telegram_api::Reaction> &reaction) { return ReactionType(reaction); });
+  auto new_reaction_types = ReactionType::get_reaction_types(reactions->reactions_);
   if (new_reaction_types == top_reactions_.reaction_types_ && top_reactions_.hash_ == reactions->hash_) {
     LOG(INFO) << "Top reactions are not modified";
     return;
diff --git a/td/telegram/ReactionType.cpp b/td/telegram/ReactionType.cpp
index c273f9c0b..d9168db4a 100644
--- a/td/telegram/ReactionType.cpp
+++ b/td/telegram/ReactionType.cpp
@@ -8,6 +8,7 @@
 
 #include "td/telegram/misc.h"
 
+#include "td/utils/algorithm.h"
 #include "td/utils/as.h"
 #include "td/utils/base64.h"
 #include "td/utils/crypto.h"
@@ -84,6 +85,28 @@ ReactionType::ReactionType(const td_api::object_ptr<td_api::ReactionType> &type)
   }
 }
 
+vector<ReactionType> ReactionType::get_reaction_types(
+    const vector<telegram_api::object_ptr<telegram_api::Reaction>> &reactions) {
+  return transform(reactions, [](const auto &reaction) { return ReactionType(reaction); });
+}
+
+vector<ReactionType> ReactionType::get_reaction_types(
+    const vector<td_api::object_ptr<td_api::ReactionType>> &reactions) {
+  return transform(reactions, [](const auto &reaction) { return ReactionType(reaction); });
+}
+
+vector<telegram_api::object_ptr<telegram_api::Reaction>> ReactionType::get_input_reactions(
+    const vector<ReactionType> &reaction_types) {
+  return transform(reaction_types,
+                   [](const ReactionType &reaction_type) { return reaction_type.get_input_reaction(); });
+}
+
+vector<td_api::object_ptr<td_api::ReactionType>> ReactionType::get_reaction_types_object(
+    const vector<ReactionType> &reaction_types) {
+  return transform(reaction_types,
+                   [](const ReactionType &reaction_type) { return reaction_type.get_reaction_type_object(); });
+}
+
 telegram_api::object_ptr<telegram_api::Reaction> ReactionType::get_input_reaction() const {
   if (is_empty()) {
     return telegram_api::make_object<telegram_api::reactionEmpty>();
diff --git a/td/telegram/ReactionType.h b/td/telegram/ReactionType.h
index d78b27926..888b55d78 100644
--- a/td/telegram/ReactionType.h
+++ b/td/telegram/ReactionType.h
@@ -38,6 +38,17 @@ class ReactionType {
 
   explicit ReactionType(const td_api::object_ptr<td_api::ReactionType> &type);
 
+  static vector<ReactionType> get_reaction_types(
+      const vector<telegram_api::object_ptr<telegram_api::Reaction>> &reactions);
+
+  static vector<ReactionType> get_reaction_types(const vector<td_api::object_ptr<td_api::ReactionType>> &reactions);
+
+  static vector<telegram_api::object_ptr<telegram_api::Reaction>> get_input_reactions(
+      const vector<ReactionType> &reaction_types);
+
+  static vector<td_api::object_ptr<td_api::ReactionType>> get_reaction_types_object(
+      const vector<ReactionType> &reaction_types);
+
   telegram_api::object_ptr<telegram_api::Reaction> get_input_reaction() const;
 
   td_api::object_ptr<td_api::ReactionType> get_reaction_type_object() const;