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Koa / Vue.js SPA Template App

This app is a template application using Koa for a REST/JSON API server and Vue.js for a web client.

Overview of Stack

• Server
  • Koa
  • PostgresSQL
  • TypeScript
  • TypeORM (data-mapper ORM)
  • routing-controllers (decorated, class-based controllers in Koa)
  • Docker used for development PostgresSQL database and MailHog server
• Client
  • Vue.js
  • Single-file components (.vue)
  • TypeScript
  • Webpack for asset bundling and HMR (Hot Module Replacement)
  • Bootstrap CSS
  • Fetch API for REST requests
• Testing
  • Mocha
  • Chai
  • TypeScript
  • MailHog for development email delivery
• DevOps
  • Ansible playbook for provisioning (Nginx reverse proxy, SSL via Let's Encrypt, PostgresSQL backups to S3)
  • Ansible playbook for deployment

Development Setup

1. Install the following:
   • Node.js >= v7.8.0
   • Ansible >= 2.3.1.0 (pip install ansible --upgrade to upgrade)
   • Docker
2. Run npm install && npm start
3. Open browser and navigate to http://localhost:5000.

Scripts

npm install

When first cloning the repo or adding new dependencies, run this command. This will:

• Install Node dependencies from package.json

npm start

To start the app for development, run this command. This will:

• Run docker-compose up to ensure the PostgreSQL and MailHog Docker images are up and running
• Run dotnet watch run which will build the app (if changed), watch for changes and start the web server on http://localhost:5000
• Run Webpack dev middleware with HMR

npm run migration:create [name]

Creates a new migration file in api/db/migrations/. Migrations will be run each time the app starts (controlled with api/config/default.yml:autoMigrationsRun)

npm test

This will run the 2 test suites in test/.

• unit - The unit tests are located in test/unit/
• integration - The integration tests are located in test/integration/

npm run provision:production

Before running this script, you need to create an ops/config.yml file first. See the ops README for instructions.

This will run the ops/provision.yml Ansible playbook and provision hosts in ops/hosts inventory file. This prepares the hosts to recieve deployments by doing the following:

• Install Nginx
• Generate a SSL certificate from Let's Encrypt and configure Nginx to use it
• Install Node.js
• Install Supervisor (will run/manage the Node.js/Koa app)
• Install PostgreSQL
• Setup a cron job to automatically backup the PostgresSQL database, compress it, and upload it to S3.
• Setup UFW (firewall) to lock everything down except inbound SSH and web traffic
• Create a deploy user, directory for deployments and configure Nginx to serve from this directory

npm run deploy:production

Before running this script, you need to create a ops/config.yml file first. See the ops README for instructions.

This script will:

• Build release Webpack bundles
• Package the Koa application
• Run the ops/deploy.yml Ansible playbook to deploy this app to hosts in /ops/config.yml inventory file. This does the following:
• Copies the build assets to the remote host(s)
• Creates config/local-production.yml the appsettings.json file with PostgresSQL credentials specified in ops/hosts file and the app URL (needed for JWT tokens)
• Restarts the app so that changes will be picked up

Development Email Delivery

This template includes a MailHog Docker image so that when email is sent during development (i.e. new user registration), it can be viewed in the MailHog web interface at http://localhost:8025/.

Visual Studio Code config

This project has Visual Studio Code tasks and debugger launch config located in .vscode/.

Tasks

• Command+Shift+B - Runs the "build" task which builds the api/ project and outputs to api/build/
• Command+Shift+T - Runs the "test" task which runs the tests.

Debug Launcher

With the following debugger launch configs, you can set breakpoints and have full debugging support in Visual Studio Code

• Debug api/ - Runs api (Node.js/Koa app) app with the VSCode debugger
• Debug test/integration/ - Runs the integration test suite with the VSCode debugger
• Debug test/unit/ - Runs the unit test suite with the VSCode debugger