Indomitable

A lightweight (the actual ship is heavy though), performant, and powerful sharder for Discord.JS

The ShipGirl Project; ⓒ Azur Lane

Features

• Fast

• Lightweight

• Reliable

• ESM & CommonJS supported

• Shard Concurrency Support

• Easy to use promised based IPC

• No dependencies

• Very cute (and lazy)

Used in prod by the ff:

Chip (https://chipbot.gg/)

Kashima (https://kashima.saya.moe/)

Or add your own!

Installation

• Stable

npm install indomitable

• Dev

npm install https://github.com/Deivu/Indomitable.git#master

Documentation

🔗 https://indomitable.shipgirl.moe/

Don't forget to read my "Notes" below!

Example Usage

Basic usage

const { Indomitable } = require("indomitable");
const { Client } = require("discord.js");
const token = "your_token";

const manager = new Indomitable({ client: Client, token }).on(
  "error",
  console.error
);

manager.spawn();

Basic usage with more Indomitable Options

const { Indomitable } = require("indomitable");
const { Client } = require("discord.js");
const token = "your_token";

const options = {
  // Processes to run
  clusterCount: 2,
  // Websocket shards to run
  shardCount: 8,
  // Discord.js options
  clientOptions: {
    intents: [1 << 0], // Bitwise for GUILD intent only
  },
  // Auto restart processes that have been killed
  // This defaults to false by default unless you specify it
  autoRestart: true,
  // Discord.js client
  client: Client,
  // Your bot token
  token,
};

const manager = new Indomitable(options).on("error", console.error);

manager.spawn();

Broadcasteval as one way to get data across shards

// Saya's note:
// Not recommended as every broadcastEval uses eval() internally
// Consider learning the ipc system of this library in future to get data across your clusters
client.shard
  .broadcastEval((client) => client.guilds.cache.size)
  .then(console.log);

Example of a very basic ipc communication (non repliable)

// Primary Process
indomitable.on("message", (message) => {
  if (message.content.op === "something") {
    doSomething();
  }
});
// ClientWorker Process (your client most likely)
client.shard.send({ content: { op: "something" } }).catch(console.error);

Example of a very basic ipc communication (repliable)

// Primary Process
indomitable.on("message", (message) => {
  if (message.content.op === "something") {
    if (!message.repliable) return; // check if the message is repliable just incase, though it won't error even it is not
    const someValue = doSomething();
    message.reply(someValue);
  }
});
// ClientWorker Process (your client most likely)
client.shard
  .send({ content: { op: "something" }, repliable: true })
  .then(console.log)
  .catch(console.error);

You could also do it reversely (main process asking data from clusters instead of clusters asking main process)

// Primary Process
// send to specific cluster
indomitable.send(0, { content: { op: "nya" } }).catch(console.error);
// send to specific cluster with repliable
indomitable
  .send(0, { content: { op: "something" }, repliable: true })
  .then(console.log)
  .catch(console.error);
// broadcast to all clusters
indomitable.broadcast({ content: { op: "meow" } }).catch(console.error);
// broadcast to all clusters with repliable is possible as well
indomitable
  .broadcast({ content: { op: "meow" }, repliable: true })
  .then(console.log)
  .catch(console.error);

// ClientWorker Process (your client most likely)
client.shard.on("message", (message) => {
  if (message.content.op === "something") {
    if (!message.repliable) return;
    const someValue = doSomething();
    message.reply(someValue);
  }
  if (message.content.op === "nya") {
    doSomething();
  }
  if (message.content.op === "meow") {
    if (!message.repliable) return;
    message.reply("nya");
  }
});

Reconfiguring Indomitable on the go, to launch more clusters or more shard, or more on both

// Reconfigure to launch more shards based on Discord Recommendation without spawning more clusters
indomitable
  .reconfigure()
  .then(() => console.log("Done, Indomitable is reconfigured"));
// Reconfigure to launch more clusters based on your value, but leave the shards based on Discord's recommendation
indomitable
  .reconfigure({ clusters: 8 })
  .then(() => console.log("Done, Indomitable is reconfigured"));
// Reconfigure to launch more clusters or shards based on your values
indomitable
  .reconfigure({ clusters: 8, shards: 8 })
  .then(() => console.log("Done, Indomitable is reconfigured"));
// Do not run restart() or restartAll() while this is running. It will cause your cluster / clusters to restart twice.
if (!indomitable.isBusy) indomitable.restartAll();
// Do not use reconfigure for just restarting all clusters sequentially, still use .restartAll() for that
indomitable.restartAll();

Enabling concurrency handling (across all your shards) (Read Notes Below)

const { Indomitable } = require("indomitable");
const { Client } = require("discord.js");
const token = "your_token";

const options = {
  // Processes to run
  clusterCount: 2,
  // Websocket shards to run
  shardCount: 8,
  // Discord.js options
  clientOptions: {
    intents: [1 << 0], // Bitwise for GUILD intent only
  },
  // Auto restart processes that have been killed
  // This defaults to false by default unless you specify it
  autoRestart: true,
  // Enable max concurrency handling
  handleConcurrency: true,
  // Your Discord.js client
  client: Client,
  // Your bot token
  token,
};

const manager = new Indomitable(options).on("error", console.error);

manager.spawn();

• Indomitable's concurrency handling will work in any shard # and cluster # regardless

• Pair this with waitForReady disabled, and you will get amazingly fast boot times, specially for those who have access to big bot sharding.

• Reduces your identify calls by following global max_concurrency identifies resulting into better connection quality

Notes

• You don't need to call client.login('token'); yourself, Indomitable will call it for you.

• Extended clients that extend from discord.js client will work, as long as you use client.login('token'); to get your bot running

• Your Discord.JS Client ShardClientUtil is replaced with Indomitable's ShardClientUtil. Refer to our docs for documentation 🔗 https://deivu.github.io/Indomitable/classes/client_ShardClientUtil.ShardClientUtil.html

Other Links

Support (#Development)

Indomitable Options

Option	Type	Description	Required	Default
clusterCount	number or 'auto'	How many clusters we should spawn	No	'auto'
shardCount	number or 'auto'	How many websocket shards we should make	No	'auto'
clientOptions	Object	Discord.JS Client Options	No	{}
clusterSettings	Object	Options for the forked process	No	{}
ipcTimeout	number	Timeout before we fail a request	No	30000
spawnTimeout	number	Timeout before we fail a cluster spawn	No	60000 (multiplied by clusterShardCount internally)
spawnDelay	number	Time to wait before spawning a new cluster	No	5000
autoRestart	boolean	If you want to auto restart the shards that have been killed unintentionally	No	false
waitForReady	boolean	If you want to wait for cluster ready before spawning another cluster	No	true
handleConcurrency	boolean	Whether you want to handle shard concurrency properly	No	false
client	Client	Your Discord.JS non modified OR modified client	Yes	None
token	string	The token of your bot	Yes	None

Made with ❤ by @ichimakase (https://github.com/Deivu/)