Method applyPrepaid

Telegram/SourceFiles/api/api_premium.cpp:549–574

}

rpl::producer<rpl::no_value, QString> PremiumGiftCodeOptions::applyPrepaid(
		const Payments::InvoicePremiumGiftCode &invoice,
		uint64 prepaidId) {
	return [=](auto consumer) {
		auto lifetime = rpl::lifetime();
		const auto channel = _peer->asChannel();
		if (!channel) {
			return lifetime;
		}

		_api.request(MTPpayments_LaunchPrepaidGiveaway(
			_peer->input(),
			MTP_long(prepaidId),
			invoice.giveawayCredits
				? Payments::InvoiceCreditsGiveawayToTL(invoice)
				: Payments::InvoicePremiumGiftCodeGiveawayToTL(invoice)
		)).done([=](const MTPUpdates &result) {
			_peer->session().api().applyUpdates(result);
			consumer.put_done();
		}).fail([=](const MTP::Error &error) {
			consumer.put_error_copy(error.type());
		}).send();

		return lifetime;
	};
}

const std::vector<int> &PremiumGiftCodeOptions::availablePresets() const {
	return _availablePresets;