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Swan Partner Front-end

Onboarding & Banking clients for Swan

Clone

$ git clone [email protected]:swan-io/swan-partner-frontend.git
$ cd swan-partner-frontend

Install

1. Dependencies

Install yarn (needed for the monorepo management).

$ yarn

2. Hosts

Add the following to your /etc/hosts file (so that we're able to replicate the subdomains we'll use in production):

127.0.0.1 banking.swan.local
127.0.0.1 onboarding.swan.local

3. HTTPS

In order to replicate the production conditions (for session cookies mostly), the local server runs in HTTPS. By default, your system will warn against a self-signed certificate, but we can use mkcert to make the system trust it.

MacOS

With homebrew:

$ brew install mkcert
$ brew install nss # needed for Firefox
$ cd server/keys
$ mkcert -install
$ mkcert "*.swan.local"

Windows

With chocolatey:

$ choco install mkcert
$ cd server/keys
$ mkcert -install
$ mkcert "*.swan.local"

Getting started

To configure your project, simply the following command, it will prompt you with the required values:

$ yarn configure

and then you start the development server!

$ yarn dev

Environment variables

If you want to setup your .env file manually:

Server

At the project root, you should find a .env.example file. Copy its contents to a new .env file.

Add your values:

  • PARTNER_API_URL
    • https://api.swan.io/sandbox-partner/graphql in sandbox
    • https://api.swan.io/live-partner/graphql in live
  • UNAUTHENTICATED_API_URL
    • https://api.swan.io/sandbox-unauthenticated/graphql in sandbox
    • https://api.swan.io/live-unauthenticated/graphql in live
  • COOKIE_KEY (generate one using yarn generate-cookie-key)

And get the following from your dashboard:

  • OAUTH_CLIENT_ID: your Swan OAuth2 client ID
  • OAUTH_CLIENT_SECRET: your Swan OAuth2 client secret

Don't forget to allow your callback URLs in the dashboard → Developers → API → Redirect URLs, here:

  • https://banking.swan.local:8080/auth/callback

Client

You can provide environment variables to the client by adding keys starting with CLIENT_ in your .env file.

Then you can run the following command to make the TypeScript compiler aware of these variables:

$ yarn type-env-vars

They'll be accessible in the client code in the __env object.


Development

To start the development server, use the following command:

$ yarn dev

You'll find:

  • 📁 clients
    • 📁 onboarding: the form for an end user to create a Swan account
    • 📁 banking: the banking interface, including transactions, cards, payments & memberships
  • 📁 server: the NodeJS server to handle OAuth2 callbacks & API proxying

Editor

We recommend the following setup for an optimal developer experience:

By default, the VS Code TypeScript extension only checks the types in open files. If you want your IDE to check types in the whole project, check typescript.tsserver.experimental.enableProjectDiagnostics in your VS Code preferences.

For better performance (and confort!), it's recommended to set:

  • eslint.run to "onSave".

Linting

$ yarn lint

Testing

$ yarn test

We generally collocate test files next to their implementation, in a __tests__ directory, with the tested file name suffixed with .test:

> utils
  > __tests__
    > myFile.test.tsx
  > myFile.tsx

We use Vitest and React Testing Library.

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