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Jam Buds

Run tests Deploy to jambuds.club

Overview

Jam Buds is split into two services:

  • The App service is the frontend app powered by Nuxt.js.
  • Rhiannon is a the backend server for Jam Buds, written in Kotlin and running on Javalin. It has a codename because it replaced the more generically-named "API server," written in Node.

In addition, this repo also contains some development-specific configuration and feature tests that interact with both the browser app and APIs.

Install

In development, the services run on your local computer, while databases run via Docker containers.

You'll want the following for the frontend:

  • Node: 12.x
  • NPM: 6.x

For Rhiannon, you're going to want IntelliJ IDEA CE. If you import the rhiannon/ folder into IntelliJ, it should help you configure the right JVM and Gradle and such.

Installing Node dependencies

You'll need various NPM depdencies:

npm install
cd ../app
npm install
cd ../spec
npm install

Run in development

Databases

Easiest way to run DBs is through the docker-compose file in the root directory:

docker-compose up -d

The default app config for development and tests is preconfigured to point to the Postgres and Redis Docker images.

Configuration

Dev configuration lives in two places:

  • For the app service, a .env file with local environment variables
  • For Rhiannon, src/main/resources/conf/local/<env>.conf override files

This is kind of confusing, and there's a bit of overlap, and I may replace Rhiannon's config system with something dotenv-inspired.

App config

app/.env.defaults shows the different environment variables you can set, mostly self-documenting. Copy properties you want to override to app/.env.

Rhiannon config

Rhiannon's config for each environment is located in src/main/resources/conf/<env>.conf, and can be overridden per environment in src/main/resources/conf/local/<env>.conf.

You'll need, at minimum, to add Spotify credentials for local development. In both local/development.conf and local/feature.conf:

rhiannon {
    spotifyClientId = "FOO"
    spotifyClientSecret = "BAR"
}

Dev data & migrations

To set up the DB with dev data:

./bin/resetdb.sh

Further migrations are handled through Flyway. Run like so:

./gradlew flywayMigrate

Launching

In two separate terminal tabs, you can launch the app and API servers from the project root:

npm run app
npm run api

You can also run the API through IntelliJ - just run the "Run" target that should be preconfigured.

You should be able to visit localhost:8080 and see the application running successfully.

Testing

Unit Tests

Running unit tests for Rhiannon is easy out of the box with normal IntellIJ/JUnit tools.

Feature Tests

Feature tests use Cypress. Because Cypress runs as a separate process disconnected from the backend, a shell script is used to reset data between runs. To use this locally, you'll need to grab Postgres and Redis clients:

brew install postgresql@11
brew install redis

To run feature tests locally, you need to spin up all services:

docker-compose up -d
# in project root, separate shells:
npm run app-e2e
npm run api-e2e # or Run (Feature Tests) profile in IntelliJ

Once they're started:

cd spec && npx cypress open

Feature tests use the default test DB (jambuds_test). To avoid lengthy flyway migration times, feature tests clean and run the migrations once, then use a saved copy of the test schema (in tmp/schema.sql). npm test will automatically regenerate this schema, but if you are running Cypress tests through any other mechanism, note that if you change the DB schema, you'll need to run npm run setupDb to see the changes.

Deploy

Todo: Update for Rhiannon

The recommended way to deploy the Jam Buds is with Docker. All services have their own Dockerfiles, and can be run on a Docker host together.

When building for Docker, the Webpack builds are done totally locally before being copied into the Docker images, meaning certain production environment variables need to be set for the build. See the .env.build template for these variables.

Configure CDN

Jam Buds can utilize a CDN by changing the STATIC_URL path on the app server (as well as in Webpack builds). You can put https://$APP_URL/assets behind a CDN like Cloudfront, and then set STATIC_URL to be your Cloudfront host.

Provisioning External Services

These services are required for running Jam Buds in production, as well as for running feature tests. Some are kind of tricky to set up. Pay close attention to the environment configuration.

Spotify

Create a Spotify app through Spotify's dev dashboard. Set the callback URL to:

http{s}://{YOUR_HOST}/auth/spotify-connect/cb

Runtime environment variables for Spotify:

# Spotify API key and secret
SPOTIFY_CLIENT_ID=
SPOTIFY_CLIENT_SECRET=

There is no additional build time configuration necessary.

Twitter

Create a Twitter app through Twitter's dev dashboard. Set the callback URL to:

http{s}://{YOUR_HOST}/auth/twitter-connect/cb

Runtime environment variables for Twitter:

TWITTER_API_KEY=
TWITTER_API_SECRET=

There is no additional build time configuration necessary.

Apple Music

This one completely sucks, not gonna lie. It also costs, like, $100, so if you're just trying to make a PR or something, you shouldn't need to do this. I'm working on making it easy to disable the Apple Music systems in development.

You'll need to create a MusicKit identifier, then generate and download a private key from the developer dashboard. Put this somewhere (I've gitignored the secrets folder for this).

Update both .env and .env.deploy or whatever build-time configuration you have, as the Apple Music token is both an API runtime dependency (for track search) and an App build-time dependency (for the MusicKit JS player):

# Used for provisioning Apple Music. This path is used for the Webpack builds,
which generate a JWT key at build time, in addition to the API, which uses it for search.
MUSICKIT_PRIVATE_KEY_PATH=/path/to/secrets/your_key.p8
MUSICKIT_TEAM_ID=
MUSICKIT_KEY_ID=

If you're using the Docker scripts for prod, the private key on your host should be in /path/to/jambuds/secrets/jam_buds_prod_key.p8.