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Corsace Documentation

Getting Started

The following documentation is for setting up a local development environment for Corsace.

If you are looking into translating for Corsace, request access at, and join the Corsace discord server

Please make sure to first fork the repository

To clone the repository, run the following command in your terminal/console:

WSL/Unixgit clone
Windows*git clone -c core.symlinks=true

*Use admin privileges in your console when running the command.

For your forked repository instead, you can change the github link as needed.


Note: Please ensure that your node version is 16.6.0 or higher in order to use any of the discord features in this repository.

Install node-modules:

npm i


For the curious, the project primarily uses the following technologies and versions that are installed by the above command:

Main packages:

Other packages:

Initial Configuration

Duplicate config/default.json to config/user/$USER.json, $USER being your system username (accessible via node’s process.env.USER or USERNAME).

In a terminal, run node, then type process.env.USER to find out your username.

The values in your personal config/user/$USER.json config file will be referred to as config from now on.

osu! API


You can obtain your osu! API V1 key here


You will need to create a “New OAuth Application” at the bottom of

Add config.corsace.publicUrl + /api/login/osu/callback to the Application Callback URLs section in the popup.

For example, if your config.corsace.publicUrl is http://localhost:5000, then the callback URL should be http://localhost:5000/api/login/osu/callback.

Afterwards, you will be given a Client ID and Client Secret which you will need to add to your config to the respective fields.


You can obtain your osu! IRC password from the same place as the osu OAuth Application at

If your account is a bot account, then make sure to have botAccount set to true; otherwise, make set it to false.




There are 2 ways to setup the database, either via Docker or manually.

We are shipping a production-like docker-compose.yml file. You can start only the database service using: docker-compose up -d database or npm run database.

The database will listen on, with corsace being the database name, username and password.

Manual MariaDB Setup

If you do not want to use Docker, you will need to install MariaDB and create an empty database, named whatever you like.

It can be as simple as running:

mysql -u root -p
MySQL> create database <new_db_name>; 

Make sure to update config.database to reflect your choice of database name and credentials.

Seeding the Database

Seed the whole Corsace database using: NODE_ENV=development npm run -- typeorm migration:run -d ormconfig

Object Storage/S3

We use S3-compatible object storage for storing and serving mappacks, configured in config.s3.

While we target Cloudflare R2, any S3 provider should work as long as they support multipart uploads and pre-signed URLs.

We use three buckets:

  • team-avatars is a public bucket that stores team avatars, can be served by a CDN without authentication
  • mappacks is a public bucket that stores public mappacks, can be served by a CDN without authentication
  • mappacks-temp is a private bucket that stores private mappacks that should not have public access
    Generated mappacks are first uploaded to this bucket, users are given access through pre-signed URLs.
    Private mappacks are not meant to be permanently stored, a lifecycle policy should be added to that bucket to automatically delete objects after 1 day.
    Mappacks that should become public get moved to the mappacks bucket.

Cloudflare R2

Go to the Cloudflare R2 dashboard page. Enable your plan if you haven’t already (good luck exceeding free limits).

Create the mappacks and team-avatars buckets and enable their subdomains, or associate a custom domain for each.

Create the mappacks-temp bucket and add an object lifecycle rule to delete objects after 7 days (leave prefix empty).

Set hostname to <cloudflare account id>, and obtain S3 credentials from Make sure you give the token Edit permissions instead of the default Read permissions.




This is the most time-consuming part of the setup. You will need the following:

Enable Developer Mode

Check the option at

User Settings > Appearance > Advanced > Developer Mode

This will allow you to right click users, roles, channels, etc to copy their IDs.

A Discord Server

Create a new Discord Server if you don’t have one already. All it needs to have is a single channel. Create a “staff” role and give it to yourself.

Right-click your server name and “Copy ID”. Paste this into config.discord.guild.

Right-click your staff role and “Copy ID”. You can either create a role for each corresponding role in the config, OR paste that role ID into the following config values to give yourself god-tier permissions.


and then into every other “staff” role in the config.

Discord Application

Go to and create a “New Application”.


You will need to add the “Client ID” and “Client Secret” to the config as follows:

discord: {
    clientId: "<Client ID>",
    clientSecret: "<Client Secret>",

The client ID and secret are found in the discord application’s OAuth2 tab.\


Head to the OAuth2 section of the bot and add the following redirect URL:

config.corsace.publicUrl + /api/login/discord/callback

Also add a redirect URL with your bot’s specific Client ID that looks like:<CLIENT ID>&scope=bot&permissions=8

Follow this link to add your bot to your server.


Head to the Bot section of the Discord application and copy your bot token. Paste it into config.discord.token

Ensure you enable the Server Members and Message Content intents under the Privileged Gateway Intents subsection before usage, the bot will not start otherwise, and you will be provided a [DISALLOWED INTENTS] error.

GitHub Webhook

Completely optional, and only if you really want to track your GitHub fork’s events on discord and want to utilize Corsace’s Github Webhook.

In the discord channel you want to obtain GitHub notifications from, create a webhook from settings -> Integrations -> Create Webhook, copy its Webhook URL, and place it into your config in config.github.webhookUrl. Create a password and place it in config.github.webhookSecret.

On GitHub, go to the repository’s settings, and create a new webhook. Place the following URL in:

config.corsace.publicUrl + /api/github

Set the content type to application/json, and the secret to the password you created earlier.


We use Centrifugo for real-time notifications. You can find the documentation here.


On Unix: Run npm run centrifugo to start the centrifugo server. It will be available at http://localhost:8001 by default, unless you change the port in the config files.

On WSL/Windows OR if the above doesn’t work: Download the binary from latest releases, and add it to the root folder of this project. Afterwards, run npm run centrifugo:local to start the centrifugo server. If you want to change the port, change the -p flag in the respective script in package.json, and your config file’s api URL.

Next Steps

For frontend web development, it’s suggested to go through the following documents in order:

For docs development, you can simply go here

For any specific backend development, you can go to their respective Running Environment pages in Server/Guide from the sidebar.