🎬 The source for www.pointfree.co, a video series on functional programming and the Swift programming language.
This repo contains the full source code for the Point-Free website, a video series exploring Swift and functional programming. The codebase is split into 3 pieces:
PointFree: This is the core application, and is responsible for routing requests, loading data and rendering HTML and CSS.
Styleguide: This library contains functions and data types for creating a consistent style across the entire website.
Server: This is the actual executable server. It uses NIO to handle the low-level server responsibilities, and hands everything else over to the
Interested in a video tour of the code base?
The repo contains an extensive test suite and some playgrounds to explore. To get things running:
Open up a terminal window and grab the code:
sh git clone https://github.com/pointfreeco/pointfreeco.git cd pointfreeco
sh brew install cmark # or your preferred installation method
Make sure Postgres is installed and running. It's our database of choice. You can install it with Homebrew:
sh brew install postgres # or your preferred installation method brew services start postgresql # or your preferred launch method make db(If you use Postgres.app, EnterpriseDB, or another installation method, please follow some additional instructions in the CPostgreSQL README.)
With the project open in Xcode, you can:
There're a lot of fun things to explore in this repo. For example:
We develop web pages in playgrounds for a continuous feedback loop. This is made possible by the fact that the entire server stack is composed of pure functions with side-effects pushed to the boundaries of the application. It allows us to load up any request in isolation, including
POSTrequests, all without ever worrying about doing a side-effect.
We use snapshot testing to capture full data structures in order to verify their correctness. Not only do we do this in the traditional way of taking screenshots of web pages at various break points (e.g. on iPhone and desktop), but we can also snapshot any entire request-to-response lifecycle (e.g. the
POSTto a signup page does the correct redirect).
▿ Step ResponseEnded
▿ Request POST http://localhost:8080/launch-signup
▿ Response Status 302 FOUND Location: /?success=true
Like the color theme we use in our episodes? Run
make colorthemeto install locally!
Point-Free uses a bunch of interesting open-source software:
Explore more of our open-source on the Point-Free organization.
Brandon gave a talk about most of the core ideas that went into this project at Swift Summit 2017.
Then check out Point-Free!