The Pragmatic Haskeller
A collection of "recipes" (no pun intended) to pragmatically get things done in Haskell. We'll build a simple web application for managing recipes. In particular, we'll focus on:
How to parse Json files describing recipes
How to automatically convert between Json and Bson for storing recipes inside MongoDB
Interfacing with an external API
A DSL for describing recipes
Follow the tutorials!
I wrote a complete series on "The School of Haskell":
cd <episode folder> cabal install
inside each subfolder to install the desired version.
You will need the Haskell Platform installed or at least
Avoid Cabal Hell
hsenv to work inside an isolate environment everytime:
Usage is simple: clone the pragmatic project, cd inside it, then:
hsenv source .hsenv/bin/activate
Et voilà! Now you can install whatever you like without the risk of polluting
your global Cabal installation. Is the trick I use myself; I've installed in
the global Cabal only barebone stuff, all the rest lives inside a separate
isolated environment! If you have cabal hell inside hsenv, simply delete
.hsenv and repeat the steps above; you'll have a brand new environment
Running each episode
cabal install pragmatic
To run the "pragmatic" server.
Show me a demo!
Sure! Here we go: http://ec2-107-22-56-237.compute-1.amazonaws.com:8000