Gigahorse 

Gigahorse is an HTTP client for Scala with multiple backend support. For the internal backend you can choose from Apache HttpComponents, Async Http Client, Square OkHttp, or Akka HTTP.

Setup 

For Apache HttpComponents:

libraryDependencies += "com.eed3si9n" %% "gigahorse-apache-http" % "0.8.0"

For Async HTTP Client:

libraryDependencies += "com.eed3si9n" %% "gigahorse-asynchttpclient" % "0.8.0"

For Square OkHttp 3.x Client:

libraryDependencies += "com.eed3si9n" %% "gigahorse-okhttp" % "0.8.0"

Akka HTTP support is experimental:

libraryDependencies += "com.eed3si9n" %% "gigahorse-akka-http" % "0.8.0"

Dependencies 

• Gigahorse generally depends on Scala standard library, Lightbend SSL Config and Lightbend Config.
• Gigahorse-Apache-HTTP depends on shaded Apache HttpComponents HttpClient 5.x.
• Gigahorse-AsyncHttpClient depends on shaded AHC 2.0, which internally uses Netty 4.
• Gigahorse-OkHttp depends on Scala and Square OkHttp 3.x.
• Gigahorse-Akka-HTTP is experimental, and not all features are hooked up.

Credits 

• The implementation was originally based from The Play WS API, including the way AHC is called and the choice of default values. In particular, it uses Lightbend Config and @wsargent’s SSL Config, which uses securer defaults.
• API design is also strongly influenced by that of Dispatch Reboot by @n8han.
• All datatypes are generated using Contraband, which @Duhemm and I worked on.
• @alexdupre contributed AHC 2.0 migration and WebSocket support.
• Finally, props to underlying HTTP libraries for the actual HTTP work.

License 

Apache v2

Quick start 

Here’s a quick example of how to make a GET call using Gigahorse:

scala> import gigahorse.*, support.apachehttp.Gigahorse

scala> import scala.concurrent.*, duration.*

scala> val http = Gigahorse.http(Gigahorse.config)
val http: gigahorse.HttpClient = gigahorse.support.apachehttp.ApacheHttpClient@6e571cd9

scala> val r = Gigahorse.url("https://api.frankfurter.dev/v1/latest").get.addQueryString("base" -> "USD")
val r: gigahorse.Request = Request(https://api.frankfurter.dev/v1/latest, GET, EmptyBody(), Map(), Map(base -> List(USD)), None, None, None, None, None, None)

scala> val f = http.run(r, Gigahorse.asString)
SLF4J: Failed to load class "org.slf4j.impl.StaticLoggerBinder".
SLF4J: Defaulting to no-operation (NOP) logger implementation
SLF4J: See http://www.slf4j.org/codes.html#StaticLoggerBinder for further details.
val f: scala.concurrent.Future[String] = Future(<not completed>)

scala> Await.result(f, 120.seconds)
val res0: String = {"amount":1.0,"base":"USD","date":"2025-04-11","rates":{"AUD":1.6042,"BGN":1.7238,"BRL":5.831,"CAD":1.3869,"CHF":0.81544,"CNY":7.2994,"CZK":22.164,"DKK":6.5816,"EUR":0.88137,"GBP":0.76395,"HKD":7.7552,"HUF":360.39,"IDR":16855,"ILS":3.7209,"INR":86.09,"ISK":128.06,"JPY":142.84,"KRW":1431.68,"MXN":20.38,"MYR":4.4225,"NOK":10.665,"NZD":1.7254,"PHP":57.065,"PLN":3.7857,"RON":4.3872,"SEK":9.8006,"SGD":1.3213,"THB":33.555,"TRY":38.058,"ZAR":19.2834}}

scala> http.close()