This post is the second in a multi-part series on building scalable and beautiful Angular apps.
First things first: Running code is far more valuable than any blog post. So, launch the demo site here, check out the source code on GitHub and pull the Docker image without delay: docker pull duluca/angular1.5-starter.
You expose your front-end code over port 80 to the open web. If this doesn’t scare you, it should. It is not difficult to mistakenly expose private keys, passwords or unintended static assets like images or source code. For this we need to separate the source code from the that is published on the internet. Furthermore, we would like to minify and combine our code to a single file, which is the most efficient way of sending clients data over http. This is something that will eventually change with http 2, but we are far from wide support of the technology at this point. Let’s examine the gulp tasks that we need to achieve these goals.
As we discussed earlier, sending one large file down to the client is the most efficient way of sending your code assets down to the client in today’s internet. So, we need a way to bundle our various html templates into one file. For this, I use gulp-ng-templates, which builds all of your Angular templates in just one js file using Angular’s $templateCache provider. The output of this task is the template.js file that we then inject as a dependency in app.js.
If you’re using Visual Studio Code, the IDE will enforce your JSHint rules without further configuration.
To ensure code hygiene index.html should rarely ever be updated, because we only need to reference a single app.js file in html, since all js and html files are combined into a single file from in the build step. A notable exception are css resources, because you may want to use CDN links for these resources. Furthermore, I find it unreliable to compile, combine or minify 3rd party css resources.
All of your static assets should go under the static folder, which this gulp task will copy over to the public folder.
We leverage Gulp.js to streamline our build tasks. The pre-built Gulp tasks, we reviewed above minify, combine JS, HTML and publish other static assets to a public folder, which is created from scratch ever time. Don’t check this folder into your code repository and don’t make code changes in this folder. In fact, I have configured Visual Studio code to hide this folder from default view. See .vscode/settings.json file to change the settings to your liking.
Creating the public folder from scratch every time ensures that you maintain a repeatable development pipeline and enforce a clean-room development environment to avoid mistakes and accidental exposure of assets.
As German poet Goethe puts it, “what is not started today is never finished tomorrow.” Here’s the code on GitHub. Fork it, create issues with it, otherwise just clone it and use it. Start today.
If you have any questions, ask them on Twitter @duluca.
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