Announcing Carnival: an unobtrusive, developer-friendly way to add comments to any site.

Adding and testing authentication in Yesod.

A field report on using Halcyon for developing, testing, and deploying our first production Haskell application, Carnival.

What would it be like to program in a language without the frustrating concept of null? In our new book, Maybe Haskell, we explore exactly this.

What would it be like to program in a language without the frustrating concept of null? In our new book, Maybe Haskell, we explore exactly this.

A field report on using Halcyon for developing, testing, and deploying our first production Haskell application, Carnival.

With the release of a recent feature on the blog, we can now say something we’ve hoped to say for some time: we shipped Haskell to production! In this post, I’ll outline what we shipped, how it’s working out for us, and provide some solutions to the various hurdles we encountered.

<p>I’ve just finished work on a small command line <a href="https://github.com/pbrisbin/heroku-build">client</a> for the
<a href="https://devcenter.heroku.com/articles/platform-api-reference#build">Heroku Build API</a> written in Haskell. It may be a bit overkill for
the task, but it allowed me to play with a library I was very interested
in but hadn’t had a chance to use yet: <a href="https://hackage.haskell.org/package/optparse-applicative">optparse…</a></p>

<p>A colleague of mine was stuck attempting to do something in Haskell that seemed
conceptually simple but resulted in a type error. While a particular form of
polymorphism, common in object-oriented languages, translated very well to
Haskell, a related…</p>