Add td_api::getBotInfoDescription.

td/generate/scheme/td_api.tl

@@ -7604,6 +7604,10 @@ setDefaultChannelAdministratorRights default_channel_administrator_rights:chatAd
 //@param_description New bot's description on the specified language
 setBotInfoDescription language_code:string description:string = Ok;
 
+//@description Returns the text shown in the chat with the bot if the chat is empty in the given language; bots only
+//@language_code A two-letter ISO 639-1 language code or an empty string
+getBotInfoDescription language_code:string = Text;
+
 
 //@description Returns all active sessions of the current user
 getActiveSessions = Sessions;

td/telegram/Account.cpp

@@ -628,6 +628,37 @@ class SetBotInfoQuery final : public Td::ResultHandler {
   }
 };
 
+class GetBotInfoQuery final : public Td::ResultHandler {
+  Promise<string> promise_;
+  size_t index_ = 0;
+
+ public:
+  explicit GetBotInfoQuery(Promise<string> &&promise) : promise_(std::move(promise)) {
+  }
+
+  void send(const string &language_code, size_t index) {
+    index_ = index;
+    send_query(G()->net_query_creator().create(telegram_api::bots_getBotInfo(language_code), {{"me"}}));
+  }
+
+  void on_result(BufferSlice packet) final {
+    auto result_ptr = fetch_result<telegram_api::bots_getBotInfo>(packet);
+    if (result_ptr.is_error()) {
+      return on_error(result_ptr.move_as_error());
+    }
+
+    auto result = result_ptr.move_as_ok();
+    if (result.size() != 2) {
+      return on_error(Status::Error(500, "Failed to get bot info"));
+    }
+    promise_.set_value(std::move(result[index_]));
+  }
+
+  void on_error(Status status) final {
+    promise_.set_error(std::move(status));
+  }
+};
+
 class ExportContactTokenQuery final : public Td::ResultHandler {
   Promise<td_api::object_ptr<td_api::userLink>> promise_;
 
@@ -772,6 +803,11 @@ void set_bot_info_description(Td *td, const string &language_code, const string
   td->create_handler<SetBotInfoQuery>(std::move(promise))->send(language_code, false, string(), true, description);
 }
 
+void get_bot_info_description(Td *td, const string &language_code, Promise<string> &&promise) {
+  TRY_STATUS_PROMISE(promise, validate_bot_language_code(language_code));
+  td->create_handler<GetBotInfoQuery>(std::move(promise))->send(language_code, 1);
+}
+
 void export_contact_token(Td *td, Promise<td_api::object_ptr<td_api::userLink>> &&promise) {
   td->create_handler<ExportContactTokenQuery>(std::move(promise))->send();
 }

td/telegram/Account.h

@@ -52,6 +52,8 @@ void set_default_channel_administrator_rights(Td *td, AdministratorRights admini
 
 void set_bot_info_description(Td *td, const string &language_code, const string &description, Promise<Unit> &&promise);
 
+void get_bot_info_description(Td *td, const string &language_code, Promise<string> &&promise);
+
 void export_contact_token(Td *td, Promise<td_api::object_ptr<td_api::userLink>> &&promise);
 
 void import_contact_token(Td *td, const string &token, Promise<td_api::object_ptr<td_api::user>> &&promise);

td/telegram/Td.cpp

@@ -7019,6 +7019,19 @@ void Td::on_request(uint64 id, td_api::setBotInfoDescription &request) {
   set_bot_info_description(this, request.language_code_, request.description_, std::move(promise));
 }
 
+void Td::on_request(uint64 id, const td_api::getBotInfoDescription &request) {
+  CHECK_IS_BOT();
+  CREATE_REQUEST_PROMISE();
+  auto query_promise = PromiseCreator::lambda([promise = std::move(promise)](Result<string> result) mutable {
+    if (result.is_error()) {
+      promise.set_error(result.move_as_error());
+    } else {
+      promise.set_value(td_api::make_object<td_api::text>(result.move_as_ok()));
+    }
+  });
+  get_bot_info_description(this, request.language_code_, std::move(query_promise));
+}
+
 void Td::on_request(uint64 id, const td_api::setLocation &request) {
   CHECK_IS_USER();
   CREATE_OK_REQUEST_PROMISE();

td/telegram/Td.h

@@ -1120,6 +1120,8 @@ class Td final : public Actor {
 
   void on_request(uint64 id, td_api::setBotInfoDescription &request);
 
+  void on_request(uint64 id, const td_api::getBotInfoDescription &request);
+
   void on_request(uint64 id, const td_api::setLocation &request);
 
   void on_request(uint64 id, td_api::setProfilePhoto &request);