D++ (DPP)
C++ Discord API Bot Library
Using Sub-Commands in Slash Commands

This demonstrates how to use sub-commands within slash commands. Also shown below is an example of how to get a "resolved" parameter without having to use the cache or an extra API call.

#include <dpp/dpp.h>
#include <iostream>
int main() {
dpp::cluster bot("token");
/* Use the on_slashcommand event to look for commands */
bot.on_slashcommand([&bot](const dpp::slashcommand_t & event) {
dpp::command_interaction cmd_data = event.command.get_command_interaction();
/* Check if the command is the image command. */
if (event.command.get_command_name() == "image") {
/* Get the sub command */
auto subcommand = cmd_data.options[0];
/* Check if the subcommand is "dog" */
if (subcommand.name == "dog") {
/* Checks if the subcommand has any options. */
if (!subcommand.options.empty()) {
/* Get the user from the parameter */
dpp::user user = event.command.get_resolved_user(subcommand.get_value<dpp::snowflake>(0));
event.reply(user.get_mention() + " has now been turned into a dog.");
} else {
/* Reply if there were no options.. */
event.reply("No user specified");
}
} else if (subcommand.name == "cat") { /* Check if the subcommand is "cat". */
/* Checks if the subcommand has any options. */
if (!subcommand.options.empty()) {
/* Get the user from the parameter */
dpp::user user = event.command.get_resolved_user(subcommand.get_value<dpp::snowflake>(0));
event.reply(user.get_mention() + " has now been turned into a cat.");
} else {
/* Reply if there were no options.. */
event.reply("No user specified");
}
}
}
});
/* Executes on ready. */
bot.on_ready([&bot](const dpp::ready_t & event) {
if (dpp::run_once<struct register_bot_commands>()) {
/* Define a slash command. */
dpp::slashcommand image("image", "Send a specific image.", bot.me.id);
image.add_option(
/* Create a subcommand type option for "dog". */
dpp::command_option(dpp::co_sub_command, "dog", "Send a picture of a dog.")
.add_option(dpp::command_option(dpp::co_user, "user", "User to turn into a dog.", false))
);
image.add_option(
/* Create another subcommand type option for "cat". */
dpp::command_option(dpp::co_sub_command, "cat", "Send a picture of a cat.")
.add_option(dpp::command_option(dpp::co_user, "user", "User to turn into a cat.", false))
);
/* Create command */
bot.global_command_create(image);
}
});
bot.start(dpp::st_wait);
return 0;
}
dpp::slashcommand_t
User has issued a slash command.
Definition: dispatcher.h:715
dpp::st_wait
@ st_wait
Wait forever on a condition variable. The cluster will spawn threads for each shard and start() will ...
Definition: cluster.h:101
dpp::command_interaction
Details of a command within an interaction. This subobject represents the application command associa...
Definition: appcommand.h:822
dpp::interaction_create_t::command
interaction command
command interaction
Definition: dispatcher.h:698
dpp::co_user
@ co_user
A user snowflake id.
Definition: appcommand.h:98
dpp::slashcommand
Represents an application command, created by your bot either globally, or on a guild.
Definition: appcommand.h:1358
dpp::utility::cout_logger
std::function< void(const dpp::log_t &)> DPP_EXPORT cout_logger()
Get a default logger that outputs to std::cout. e.g.
Definition: dispatcher.h:228
dpp::interaction::get_command_name
std::string get_command_name() const
Get the command name for a command interaction.
dpp::co_sub_command
@ co_sub_command
A sub-command.
Definition: appcommand.h:73
dpp::command_option
Each command option is a command line parameter. It can have a type (see dpp::command_option_type),...
Definition: appcommand.h:222
dpp::cluster
The cluster class represents a group of shards and a command queue for sending and receiving commands...
Definition: cluster.h:99
dpp::ready_t
Session ready.
Definition: dispatcher.h:981
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