Spotlight
Hybrid rendering app for the GOV.UK Performance Platform using Backbone and D3. JavaScript is shared between the client and server, and the app makes use of progressive enhancement to provide a great experience in every browser.
Building and running the app
Development
Just Spotlight: The simplest way to get started is to run just this app, against production data. You can run the app as follows:
npm install -g grunt-cli # install grunt globally
npm install
grunt
Now you should be able to connect to the app at http://localhost:3057
.
The app uses node-supervisor and grunt-contrib-watch to monitor changes, automatically restart the server and recompile Sass.
By default, this will look at production data, but perhaps you want to connect
to a different data source. You can do that
by creating your own config file in /config/config.development_personal.json
that mimics
/config/config.development.json
with a different backdropUrl
property. It'll be ignored by Git.
Full stack: if you're using our development environment then you can run all our apps in one go and use a real database for development. As a bonus, this will let you test the image fallbacks using the screenshot-as-a-service app.
First, you need to set up the Performance Platform development environment.
Once you have a machine with the required system-level dependencies, you can run the application with:
cd /var/apps/pp-puppet/development
bowl performance
Running tests
Command line
Tests are divided into ones that work on both client and server (test/spec/shared
), ones that are server-only (test/spec/server
) and ones that are client-only (test/spec/client
).
grunt test:all
runs all three of these tests, as well as linting the codebase:
grunt jasmine_node
executes shared and server Jasmine tests in Node.jsgrunt jasmine
executes shared and client Jasmine tests in PhantomJSgrunt shell:cheapseats
executes feature tests using cheapseats
In the browser
When the app is running in development mode, Jasmine tests for shared
components are available at /tests
. The specrunner gets automatically
recreated on server start and when the specfiles change. Due to a
bug in grunt-contrib-watch, new spec files are not currently
detected automatically. When you add a new spec file, either restart the
app or run grunt jasmine:spotlight:build
.
Debugging locally
Install node-inspector where the app runs with sudo npm install -g [email protected]
and run it with node-inspector
.
Start the app with node --debug app/server.js
and visit http://spotlight.perfplat.dev:8080/debug
to view the console.
Production
grunt build:production
to create a production release.
NODE_ENV=production node app/server.js
to run the app in production mode.
Heroku
If you want to deploy the app to Heroku, follow these instructions.
Create an app on Heroku
Using the web interface, or the CLI:
heroku create <app-name>
Set the app to use the node-grunt buildpack
The app runs on Heroku using a custom buildpack for Grunt.js support.
This means it will run the grunt commands we need to compile the app when deploying code.
heroku config:set BUILDPACK_URL=https://github.com/mbuchetics/heroku-buildpack-nodejs-grunt.git
Set configuration vars
heroku config:set NODE_ENV=development # makes app run in development mode
heroku config:set npm_config_production=true # does not install dev dependencies
Deploy the code
If the code you're deploying is not in master, then you'll need to make sure you specify your local branch to push to master. Otherwise it will just deploy your local master (and probably not work as expected).
git push heroku <your-branch-name>:master
heroku open # opens the freshly deployed app in a browser
Or just...
If you want the Heroku app to be password-protected, set config variables as follows, before pushing the code.
heroku config:set BASIC_AUTH_USER=xxxx
heroku config:set BASIC_AUTH_PASS=xxxx
heroku config
Logging
You might also want to enable some logging in your Heroku app to assist with debugging. You can use logentries to do that:
heroku addons:add logentries
You can then access the logs from your app's dashboard on Heroku (under the "Add-ons" section).