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README.md

sttp

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The Scala HTTP client that you always wanted!

sttp is an open-source library which provides a clean, programmer-friendly API to define HTTP requests and execute them using one of the wrapped backends, such as akka-http, async-http-client or OkHttp.

import com.softwaremill.sttp._

val sort: Option[String] = None
val query = "http language:scala"

// the `query` parameter is automatically url-encoded
// `sort` is removed, as the value is not defined
val request = sttp.get(uri"https://api.github.com/search/repositories?q=$query&sort=$sort")
  
implicit val backend = HttpURLConnectionBackend()
val response = request.send()

// response.header(...): Option[String]
println(response.header("Content-Length")) 

// response.unsafeBody: by default read into a String 
println(response.unsafeBody)                     

Documentation

sttp documentation is available at sttp.readthedocs.io.

You can also take a look at the introductory blog and its follow-up.

Quickstart with Ammonite

If you are an Ammonite user, you can quickly start experimenting with sttp by copy-pasting the following:

import $ivy.`com.softwaremill.sttp::core:1.3.0`
import com.softwaremill.sttp.quick._
sttp.get(uri"http://httpbin.org/ip").send()

This brings in the sttp API and an implicit, synchronous backend.

Quickstart with sbt

Add the following dependency:

"com.softwaremill.sttp" %% "core" % "1.3.0"

Then, import:

import com.softwaremill.sttp._

Type sttp. and see where your IDE’s auto-complete gets you!

Contributing

If you have a question, or hit a problem, feel free to ask on our gitter channel!

Or, if you encounter a bug, something is unclear in the code or documentation, don’t hesitate and open an issue on GitHub.

We are also always looking for contributions and new ideas, so if you’d like to get into the project, check out the open issues, or post your own suggestions!

Testing the Scala.JS backend

Running the tests using the JS backend has some prerequisities:

Note that running the default test task will run the tests using both the JVM and JS backends. If you'd like to run the tests using only the JVM backend, execute: sbt rootJVM/test.

Building & testing the scala-native backend

By default, sttp-native will not be included in the aggregate build of the root project. To include it, define the STTP_NATIVE environmental variable before running sbt, e.g.:

STTP_NATIVE=1 sbt

You might need to install some additional libraries, see the scala native documentation site.

On MacOS, you need to: brew install llvm bdw-gc re2 libidn curl. If your system curl is older than 7.56.0, you'll need to use the updated brewl-curl when linking & compiling. To do that, create a core/native/local.sbt file, and add:

nativeCompileOptions += "-I/usr/local/opt/curl/include"
nativeLinkingOptions += "-L/usr/local/opt/curl/lib"

where the specific paths correspond to the output of the brew install curl command.