Quickstart
The core sttp client API comes in a single jar, with a transitive dependency on sttp model. This also includes a default, synchronous backend, which is based on Java’s HttpClient
.
To integrate with other parts of your application, you’ll often need to use an alternate backend (but what’s important is that the API remains the same!). See the section on backends for a short guide on which backend to choose, and a list of all implementations.
Using sbt
The basic dependency which provides the API, together with a synchronous and Future
-based backends, is:
"com.softwaremill.sttp.client3" %% "core" % "3.6.1"
sttp client
is available for Scala 2.11, 2.12 and 2.13, as well as for Scala 3 and requires Java 11.
sttp client
is also available for Scala.js 1.0. Note that not all modules are compatible and there are no backends that can be used on both. The last version compatible with Scala.js 0.6 was 2.2.1. Scala Native is supported as well.
Using Ammonite
If you are an Ammonite user, you can quickly start experimenting with sttp by copy-pasting the following:
import $ivy.`com.softwaremill.sttp.client3::core:3.6.1`
import sttp.client3.quick._
quickRequest.get(uri"http://httpbin.org/ip").send(backend)
Importing the quick
object has the same effect as importing sttp.client3._
, plus defining a synchronous backend (val backend = HttpClientSyncBackend()
), so that sttp can be used right away.
If the default HttpURLConnectionBackend
for some reason is insufficient, you can also use one based on OkHttp or HttpClient:
import $ivy.`com.softwaremill.sttp.client3::okhttp-backend:3.6.1`
import sttp.client3.okhttp.quick._
quickRequest.get(uri"http://httpbin.org/ip").send(backend)
Imports
Working with sttp is most convenient if you import the sttp.client3
package entirely:
import sttp.client3._
This brings into scope the starting point for defining requests and some helper methods. All examples in this guide assume that this import is in place.
And that’s all you need to start using sttp client! To create and send your first request, import the above, type basicRequest.
and see where your IDE’s auto-complete gets you! Here’s a simple request, using the synchronous backend:
import sttp.client3._
val backend = HttpClientSyncBackend()
val response = basicRequest
.body("Hello, world!")
.post(uri"https://httpbin.org/post?hello=world").send(backend)
println(response.body)
Next, read on about the how sttp client works or see some examples.