Trial System

Requirements

This project requires specific versions of the following tools. To make sure your development setup matches with production follow the recommended installation methods.

• Node.js

  Use nodenv to install the required version of Node.js.

  nodenv install
  node --version

• Yarn

  Yarn must be installed using Corepack, included by default in Node.js.

  corepack enable
  yarn --version

• Terraform

  Use tfenv to install the required version of terraform.

  tfenv install
  terraform version

Tasks

Tasks are defined in the turbo.json and package.json files. To execute a task, just run the command at the project root:

yarn <cmd>

Turborepo will execute the task for all the workspaces that declare the same command in their package.json file; it also applies caching policies to the command according to the rules defined in turbo.json.

To define a new task:

• add the definition to turbo.json under pipeline;
• add a script with the same name in package.json as turbo <cmd name>.

Defined tasks are lint, test, and typecheck.

Dependencies

# install all dependencies for the project
yarn

# install a dependency to a workspace
#   (workspace name is the name in the package.json file)
yarn workspace <workspace name> add <package name>
yarn workspace <workspace name> add -D <package name>

# install a dependency for the monorepo
#   (ideally a shared dev dependency)
yarn add -D <package name>

To add a dependency to a local workspace, manually edit the target workspace's package.json file adding the dependency as

"dependencies": {
    "my-dependency-workspace": "workspace:*"
}

Folder structure

/apps

It contains the applications included in the project. Each folder is meant to produce a deployable artifact; how and where to deploy it is demanded to a single application.

Each sub-folder is a workspace.

/packages

Packages are reusable TypeScript modules that implement a specific logic of the project. They are meant for sharing implementations across other apps and packages of the same projects, as well as being published in public registries.

Packages that are meant for internal code sharing have private: true in their package.json file; all the others are meant to be published into the public registry.

Each sub-folder is a workspace.

/infra

It contains the infrastructure-as-code project that defines the resources for the project as well as the executuion environments. Database schemas and migrations are defined here too, in case they are needed.

/docs

Technical documentation about the project. Topics that may be included are architecture overviews, ADRs, coding standards, and anything that can be relevant for a developer approaching the project as a contributor or as an auditor.

User documentation doesn't usually go in here. For public packages, it must go in the package's README file so that it will also be uploaded to the registry; user-faced documentation websites, when needed by the project, go under the /apps folder as they are treated as end-user applications.

Releases

Releases are handled using Changeset. Changeset takes care of bumping packages, updating the changelog, and tag the repository accordingly.

How it works

• When opening a Pull Request with a change intended to be published, add a changeset file to the proposed changes.
• Once the Pull Request is merged, a new Pull Request named Version Packages will be automatically opened with all the release changes such as version bumping for each involved app or package and changelog update; if an open Version Packages PR already exists, it will be updated and the package versions calculated accordingly (see https://github.com/changesets/changesets/blob/main/docs/decisions.md#how-changesets-are-combined). Only apps and packages mentioned in the changeset files will be bumped.
• Review the Version Packages PR and merge it when ready. Changeset files will be deleted.
• A Release entry is created for each app or package whose version has been bumped.