Advanced button components

This example demonstrates adding multiple buttons, receiving button clicks and sending response messages.

#include <dpp/dpp.h>
 
int main() {
 
    dpp::cluster bot("token");
 
    bot.on_log(dpp::utility::cout_logger());
 
    /* The event is fired when someone issues your commands */
    bot.on_slashcommand([&bot](const dpp::slashcommand_t& event) {
        
        /* Check which command they ran */
        if (event.command.get_command_name() == "math") {
 
            /* Create a message */
            dpp::message msg(event.command.channel_id, "What is 5+5?");
            
            /* Add an action row, and then 3 buttons within the action row. */
            msg.add_component(
                dpp::component().add_component(
                    dpp::component().
                    set_label("9").
                    set_style(dpp::cos_primary).
                    set_id("9")
                ).add_component(
                    dpp::component().
                    set_label("10").
                    set_style(dpp::cos_primary).
                    set_id("10")
                ).add_component(
                    dpp::component().
                    set_label("11").
                    set_style(dpp::cos_primary).
                    set_id("11")
                )
            );
 
            /* Reply to the user with our message. */
            event.reply(msg);
        }
    });
 
    bot.on_button_click([&bot](const dpp::button_click_t & event) {
        if (event.custom_id == "10") {
            event.reply(dpp::message("You got it right!").set_flags(dpp::m_ephemeral));
        } else {
            event.reply(dpp::message("Wrong! Try again.").set_flags(dpp::m_ephemeral));
        }
    });
 
    bot.on_ready([&bot](const dpp::ready_t& event) {
        if (dpp::run_once<struct register_bot_commands>()) {
 
            /* Create and register a command when the bot is ready */
            bot.global_command_create(dpp::slashcommand("math", "A quick maths question!", bot.me.id));
        }
    });
 
    bot.start(dpp::st_wait);
 
    return 0;
}

This code will send a different message for correct and incorrect answers.