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Hello, and welcome to DiscordCoreAPI! This is a Discord bot library, written in C++, that leverages custom asynchronous CoRoutines, as well as a home-brew set of Https, WebSocket, and Datagram socket clients - all to deliver the utmost performance and efficiency for your bot. It uses roughly 0.1% of an Intel i7 9750h CPU to stream audio in high quality (Opus @ 48Khz, 16-bit) to a single server.

imageDiscordCoreAPI

Compiler Support

Operating System Support

Documentation/Examples

Discord Server

This is a link to the Discord server!

Bot Template

A template for utilizing this library.

Features

Performant

Thanks to utilizing Erlang Text Format for websocket transfer, and a pool of kept-alive HTTPS connections - this library offers the snappiest responses to your interactions and user input.

Audio-Bridge

Connect multiple voice-channels to one-another using the DiscordCoreAPI::StreamInfo member of the DiscordCoreAPI::VoiceConnectInitData structure, with the DiscordCoreAPI::VoiceConnection class.

CPU Efficient

It only uses about 0.1% of an Intel i7 9750h to stream audio in high quality (Opus 48Khz 16-bit Stereo) to a single server.

Entire Discord API Covered

All of the Discord API endpoints are covered in this library, including voice communication.

Concurrent Discord API Access

As a result of using custom asynchronous coroutines along with a thread pool, this library has the ability to make fully asynchronous/concurrent requests to the Discord API.

Advanced Rate-Limiting System

Guarantees that the order in which HTTPS requests are executed is the same that they were submitted in - despite being launched across different threads, while never infracting on any of the Discord API's rate-limits and while running concurrently across all of the endpoints.

Slash Commands and Buttons

Select Menus

User Commands

Message Commands

Modal Text Inputs

A Unified "Input-Event" System

User interactions (Application Commands, Message Commands, User Commands) are accepted via the EventManager::onInputEventCreation event.
They can all be responded to using the InputEvents::respondToInputEventAsync() function.
Alternatively you can implement your own input-event handling by using the raw EventManager::onInteractionCreation or EventManager::onMessageCreation events.
EmbedData newEmbed{};

newEmbed.setAuthor(args.eventData.getUserName(), args.eventData.getAvatarURL());

newEmbed.setDescription("------\\n__**Sorry, but there's already something playing!**__\\n------");

newEmbed.setTimeStamp(getTimeAndDate());

newEmbed.setTitle("__**Playing Issue:**__");

newEmbed.setColor(discordGuild.data.borderColor);

RespondToInputEventData dataPackage{ args.eventData };

dataPackage.addMessageEmbed(newEmbed);

dataPackage.setResponseType(InputEventResponseType::Ephemeral_Interaction_Response);

InputEventData newEvent = InputEvents::respondToInputEvent(dataPackage);

InputEvents::deleteInputEventResponseAsync(newEvent, 20000).get();

Build Instructions (Full-Vcpkg)

Install vcpkg, if need be.
Make sure to run vcpkg integrate install.
Enter within a terminal vcpkg install discordcoreapi:x64-windows_OR_linux.
Set up a console project in your IDE and make sure to set the C++ standard to C++20 or later - and include discordcoreapi/Index.hpp.
Build and run!

Dependencies

CMake (Version 3.20 or greater)
NOTE: I installed these using the vcpkg installer.
DiscordCoreAPI (.\vcpkg install jsonifier:x64-windows_OR_linux)
OpenSSL (.\vcpkg install openssl:x64-windows_OR_linux)
Opus (.\vcpkg install opus:x64-windows_OR_linux)
Sodium (.\vcpkg install libsodium:x64-windows_OR_linux)

Build Instructions (Non-Vcpkg) - The Library

Install the dependencies.
Clone this git repository into a folder.
Set, in CMakeLists.txt, the _VCPKG_ROOT_DIR, or the Opus_DIR, unofficial-sodium_DIR paths to wherever each of the respective dependency files are located and they are as follows:
- Opus_DIR # Set this one to the folder location of the file "OpusConfig.cmake".
- unofficial-sodium_DIR # Set this one to the folder location of the file "unofficial-sodiumConfig.cmake".
- OPENSSL_ROOT_DIR # Set this one to the folder location of the include folder and library folders of OpenSSL.
Open a terminal inside the git repo's folder.
Run cmake -S . --preset Linux_OR_Windows-Debug_OR_Release.
Then run cmake --build --preset Linux_OR_Windows-Debug_OR_Release.
Run within the same terminal and folder cmake --install ./Build/Debug_OR_Release.
The default installation paths are: Windows = "ROOT_DRIVE:/Users/USERNAME/CMake/DiscordCoreAPI", Linux = "/home/USERNAME/CMake/DiscordCoreAPI"

The CMAKE Package

By running cmake --install ./Build/Debug_OR_Release, you will be given a cmake package, which can be used to build from this library, using other cmake projects.
It is used by setting DiscordCoreAPI_DIR to wherever the DiscordCoreAPIConfig.cmake file would have been installed on your system by having run the cmake --install command, and then using find_package() on DiscordCoreAPI.
When found, you will be granted the following cmake "variables"; DiscordCoreAPI - this is the library target which can be linked to from other targets in cmake, and on Windows; $<TARGET_RUNTIME_DLLS:DiscordCoreAPI-Bot> - which is a list of dll files to be copied into your executable's final location after building. As well as RELEASE_PDB_FILE_PATH, DEBUG_PDB_FILE_PATH, RELEASE_PDB_FILE_NAME, and DEBUG_PDB_FILE_NAME, which are full file/directory paths/filenames to the library's PDB files.
Here is an example of building an executable from this library with this method.

Build Instructions (Non-Vcpkg) - The Executable

Download the bot template or create your own with the same imports, and set within it either the VCPKG_ROOT_DIR, or the CMAKE_CONFIG_FILE_DIR, Opus_DIR, and unofficial-sodium_DIR paths to wherever each of the respective dependency files are located and they are as follows:
- CMAKE_CONFIG_FILE_DIR # Set this one to the folder location of the DiscordCoreAPIConfig.cmake generated while running CMake –install.
- Opus_DIR # Set this one to the folder location of the file "OpusConfig.cmake".
- unofficial-sodium_DIR # Set this one to the folder location of the file "unofficial-sodiumConfig.cmake".
- OPENSSL_ROOT_DIR # Set this one to the folder location of the include folder and library folders of OpenSSL.
Set up a main.cpp like this one, including the header discordcoreapi/Index.hpp.
Run in a terminal from within the same folder as the top-level CMakeLists.txt, cmake -S . --preset Linux_OR_Windows-Debug_OR_Release.
Then run cmake --build --preset Linux_OR_Windows-Debug_OR_Release.
Run within the same terminal and folder cmake --install ./Build/Debug_OR_Release.
The default installation paths are: Windows = "ROOT_DRIVE:/Users/USERNAME/CMake/Bot-Template-For-DiscordCoreAPI", Linux = "/home/USERNAME/CMake/Bot-Template-For-DiscordCoreAPI"