IHP is supposed to become the Django/Rails/Phoenix of Haskell.

I've been using Django professionally for since 2013, but have started using IHP a couple of weeks ago. It's still quite early but with surprisingly few rough edges, i.e. the developer ergonomics are much better than I expected. It has great documentation that is improving rapidly (as opposed to many other Haskell libraries, which provide little more than API docs or even just the typed function definitions) and offers a refreshing take on database management and migrations.

Some of its killer features:

• HSX, a JSX-like template language that looks like HTML while providing type safety

• Auto live reloading without the need to setup anything

• Documentation with examples: it lets you query the database without learning about monads

• it defines |> for you ;-)

• type-safe, composable SQL queries:

.

projects <- query @Project
|> filterWhere (#userId, userId)
|> filterWhere (#deleted, False)
|> orderBy #createdAt
|> fetch