loicdescotte / zio-http

A scala library to write Http apps.

ZIO Http

ZIO Http is a scala library for building http apps. It is powered by ZIO and netty and aims at being the defacto solution for writing, highly scalable and performant web applications using idiomatic scala.

Table of Contents

• ZIO Http
• Getting Started
• Installation
• Benchmarks

Getting Started

A simple Http server can be built using a few lines of code.

import zio._
import zhttp.http._
import zhttp.service.Server

object HelloWorld extends App {
  val app = Http.collect[Request] {
    case Method.GET -> Root / "text" => Response.text("Hello World!")
  }

  override def run(args: List[String]): URIO[zio.ZEnv, ExitCode] =
    Server.start(8090, app).exitCode
}

You can checkout more examples in the examples project —

• Simple Server
• Advanced Server
• WebSocket Server
• Streaming Response
• Simple Client
• File Streaming
• Authentication

Installation

Setup via build.sbt

libraryDependencies += "io.d11" %% "zhttp" % "[version]"

Benchmarks

These are some basic benchmarks of how ZIO Http performs wrt other main-stream libraries.

Benchmark (req/sec)	json	plain-text
ZIO-Http	700073.31	719576.04
Vert.x	644854.27	707991.69
Finagle	567496.97	572231.69
Play	261223.68	263819.25
Http4s	135565.22	139573.98

More details are available here.