ccarlile

name := "heckin-good-project"

version := "1.0"

// -Mx denotes milestone releases - in general, these projects are ramping up for a cats 1.0 release
val scalaVersion = "2.12.3"
val circeVersion = "0.9.0-M1"
val http4sVersion = "0.18.0-M2"
val doobieVersion = "0.5.0-M8"
val nscalaTimeVersion = "2.16.0"

ccarlile

#+title Introduction to Cats

Introduction to Cats

Cats is a library for Functional Programming in Scala.

Typeclasses

Monoid, Semigroup, FlatMap, etc.

Also provides instances of these typeclasses for scala types that support them, as well as syntax enhancements for ergonomics.

Data Types

OptionT, Validated, etc.

ccarlile

package io.github.ccarlile

import cats.effect.Async
import cats.data.Kleisli
import cats.~>
import cats.arrow.FunctionK
import natchez.{Span => NatchezSpan}
import doobie.Transactor
import trace4cats.{Span}
import trace4cats.kernel.ToHeaders

ccarlile

{ pkgs, unstable, ...}:

with pkgs;
let
  my-python-packages = ps: with ps; [
    pandas
  ];
in
{