Hammock

Hammock is yet another HTTP client for Scala. It tries to be typeful, purely functional, and work along other technologies that you're already using such as akka-http, circe, or cats.

Installation

Add the following to your build.sbt.

// For Scala 2.10, 2.11, or 2.12
libraryDependencies ++= Seq(
  "com.pepegar" %% "hammock-core" % "0.10.0",
  
  // Hammock for standard Scala doesn't ship with a standard implementation
  "com.pepegar" %% "hammock-apache-http" % "0.10.0"
)

// For ScalaJS
libraryDependencies += "com.pepegar" %%% "hammock-core" % "0.10.0"

Rationale

It's easy to use, has a high level API
It's typeful, tries to represent effects at type level.
It does not force a specific target context. You can run your computations in any type F[_] that has an instance of cats-effect's Sync[F].
It has good documentation.
It's modular

Modules

Module name	Description	Version
`hammock-core`	the core functionality of hammock, using XHR in JS	`0.10.0`
`hammock-circe`	encode and decode HTTP entities with Circe	`0.10.0`
`hammock-apache-http`	run your HTTP requests with Apache HTTP commons	`0.10.0`
`hammock-akka-http`	run your HTTP requests with akka-http	`0.10.0`
`hammock-asynchttpclient`	run your HTTP requests with AsyncHttpClient	`0.10.0`

How does Hammock look in action?

import cats.effect.IO
import hammock._
import hammock.marshalling._
import hammock.apache.ApacheInterpreter
import hammock.circe.implicits._

object HttpClient {
  // Using the Apache HTTP commons interpreter
  implicit val interpreter = ApacheInterpreter.instance[IO]

  val response = Hammock
    .request(Method.GET, uri"https://api.fidesmo.com/apps", Map()) // In the `request` method, you describe your HTTP request
    .as[List[String]]
    .exec[IO]
}