Migrate examples & docs to Scala 3 (#2375)

docs/backends/akka.md

@@ -16,14 +16,14 @@ Note that you'll also need an explicit dependency on akka-streams, as akka-http
 
 Next you'll need to add create the backend instance:
 
-```scala mdoc:compile-only
+```scala
 import sttp.client4.akkahttp._
 val backend = AkkaHttpBackend()
 ```
 
 or, if you'd like to use an existing actor system:
 
-```scala mdoc:compile-only
+```scala
 import sttp.client4.akkahttp._
 import akka.actor.ActorSystem
 
@@ -35,7 +35,7 @@ This backend supports sending and receiving [akka-streams](http://doc.akka.io/do
 
 To set the request body as a stream:
 
-```scala mdoc:compile-only
+```scala
 import sttp.capabilities.akka.AkkaStreams
 import sttp.client4._
 
@@ -51,7 +51,7 @@ basicRequest
 
 To receive the response body as a stream:
 
-```scala mdoc:compile-only
+```scala
 import scala.concurrent.Future
 import sttp.capabilities.akka.AkkaStreams
 import sttp.client4._
@@ -79,7 +79,7 @@ That way, you can "mock" a server that the backend will talk to, without startin
 
 If your application provides a client library for its dependants to use, this is a great way to ensure that the client actually matches the routes exposed by your application:
 
-```scala mdoc:compile-only
+```scala
 import sttp.client4.akkahttp._
 import akka.http.scaladsl.server.Route
 import akka.actor.ActorSystem
@@ -101,7 +101,7 @@ Non-standard behavior:
 
 Received data streams can be parsed to a stream of server-sent events (SSE):
 
-```scala mdoc:compile-only
+```scala 
 import scala.concurrent.Future
 
 import akka.stream.scaladsl.Source

docs/backends/fs2.md

@@ -102,7 +102,7 @@ or, if you'd like to instantiate the [WebClient](https://armeria.dev/docs/client
 import cats.effect.IO
 import cats.effect.std.Dispatcher
 import com.linecorp.armeria.client.WebClient
-import com.linecorp.armeria.client.circuitbreaker._
+import com.linecorp.armeria.client.circuitbreaker.*
 import sttp.client4.armeria.fs2.ArmeriaFs2Backend
 
 val dispatcher: Dispatcher[IO] = ???
@@ -135,7 +135,7 @@ Requests can be sent with a streaming body like this:
 import cats.effect.IO
 import fs2.Stream
 import sttp.capabilities.fs2.Fs2Streams
-import sttp.client4._
+import sttp.client4.*
 import sttp.client4.httpclient.fs2.HttpClientFs2Backend
 
 val effect = HttpClientFs2Backend.resource[IO]().use { backend =>
@@ -155,7 +155,7 @@ Responses can also be streamed:
 import cats.effect.IO
 import fs2.Stream
 import sttp.capabilities.fs2.Fs2Streams
-import sttp.client4._
+import sttp.client4.*
 import sttp.client4.httpclient.fs2.HttpClientFs2Backend
 import scala.concurrent.duration.Duration
 
@@ -181,9 +181,9 @@ The fs2 backends support both regular and streaming [websockets](../websockets.m
 Received data streams can be parsed to a stream of server-sent events (SSE):
 
 ```scala mdoc:compile-only
-import cats.effect._
+import cats.effect.*
 import fs2.Stream
-import sttp.client4._
+import sttp.client4.*
 import sttp.capabilities.fs2.Fs2Streams
 import sttp.client4.impl.fs2.Fs2ServerSentEvents
 import sttp.model.sse.ServerSentEvent

docs/backends/future.md

@@ -2,17 +2,18 @@
 
 There are several backend implementations which are `scala.concurrent.Future`-based. These backends are **asynchronous**, sending a request is a non-blocking operation and results in a response wrapped in a `Future`. 
 
-Apart from the ones described below, also the [Akka](akka.md) backend is `Future`-based.
+Apart from the ones described below, also the [Pekko](pekko.md) & [Akka](akka.md) backends are `Future`-based.
 
 ```eval_rst
-===================================== ================================================ ==========================
-Class                                 Supported stream type                            Websocket support
-===================================== ================================================ ==========================
-``HttpClientFutureBackend``           n/a                                              yes (regular)
-``AkkaHttpBackend``                   ``akka.stream.scaladsl.Source[ByteString, Any]`` yes (regular & streaming)
-``OkHttpFutureBackend``               n/a                                              yes (regular)
-``ArmeriaFutureBackend``              n/a                                              n/a
-===================================== ================================================ ==========================
+===================================== ================================================= ==========================
+Class                                 Supported stream type                             Websocket support
+===================================== ================================================= ==========================
+``HttpClientFutureBackend``           n/a                                               yes (regular)
+``PekkoHttpBackend``                  ``pekko.stream.scaladsl.Source[ByteString, Any]`` yes (regular & streaming)
+``AkkaHttpBackend``                   ``akka.stream.scaladsl.Source[ByteString, Any]``  yes (regular & streaming)
+``OkHttpFutureBackend``               n/a                                               yes (regular)
+``ArmeriaFutureBackend``              n/a                                               n/a
+===================================== ================================================= ==========================
 ```
 
 ## Using HttpClient
@@ -111,7 +112,7 @@ ArmeriaFutureBackend.usingDefaultClient()
 or, if you'd like to instantiate the [WebClient](https://armeria.dev/docs/client-http) yourself::
 
 ```scala mdoc:compile-only
-import com.linecorp.armeria.client.circuitbreaker._
+import com.linecorp.armeria.client.circuitbreaker.*
 import com.linecorp.armeria.client.WebClient
 
 // Fluently build Armeria WebClient with built-in decorators

docs/backends/http4s.md

@@ -11,10 +11,10 @@ This backend is based on [http4s](https://http4s.org) (client) and is **asynchro
 The backend can be created in a couple of ways, e.g.:
 
 ```scala mdoc:compile-only
-import cats.effect._
+import cats.effect.*
 import sttp.capabilities.fs2.Fs2Streams
-import sttp.client4._
-import sttp.client4.http4s._
+import sttp.client4.*
+import sttp.client4.http4s.*
 
 // the "org.http4s" %% "http4s-ember-client" % http4sVersion dependency needs to be explicitly added
 Http4sBackend.usingDefaultEmberClientBuilder[IO](): Resource[IO, StreamBackend[IO, Fs2Streams[IO]]]

docs/backends/javascript/fetch.md

@@ -135,8 +135,8 @@ To use, add the following dependency to your project:
 An example of streaming a response:
 
 ```scala   
-import sttp.client4._
-import sttp.client4.impl.monix._
+import sttp.client4.*
+import sttp.client4.impl.monix.*
 
 import java.nio.ByteBuffer
 import monix.eval.Task
@@ -170,7 +170,7 @@ import monix.eval.Task
 import sttp.capabilities.monix.MonixStreams
 import sttp.client4.impl.monix.MonixServerSentEvents
 import sttp.model.sse.ServerSentEvent
-import sttp.client4._
+import sttp.client4.*
 
 def processEvents(source: Observable[ServerSentEvent]): Task[Unit] = ???
 

docs/backends/monix.md

@@ -97,7 +97,7 @@ ArmeriaMonixBackend.usingDefaultClient()
 or, if you'd like to instantiate the [WebClient](https://armeria.dev/docs/client-http) yourself:
 
 ```scala
-import com.linecorp.armeria.client.circuitbreaker._
+import com.linecorp.armeria.client.circuitbreaker.*
 import com.linecorp.armeria.client.WebClient
 
 // Fluently build Armeria WebClient with built-in decorators
@@ -124,7 +124,7 @@ The Monix backends support streaming. The streams capability is represented as `
 
 ```scala
 import sttp.capabilities.monix.MonixStreams
-import sttp.client4._
+import sttp.client4.*
 import sttp.client4.httpclient.monix.HttpClientMonixBackend
 
 import monix.reactive.Observable
@@ -143,7 +143,7 @@ And receive responses as an observable stream:
 
 ```scala
 import sttp.capabilities.monix.MonixStreams
-import sttp.client4._
+import sttp.client4.*
 import sttp.client4.httpclient.monix.HttpClientMonixBackend
 
 import monix.eval.Task
@@ -176,7 +176,7 @@ import monix.eval.Task
 import sttp.capabilities.monix.MonixStreams
 import sttp.client4.impl.monix.MonixServerSentEvents
 import sttp.model.sse.ServerSentEvent
-import sttp.client4._
+import sttp.client4.*
 
 def processEvents(source: Observable[ServerSentEvent]): Task[Unit] = ???
 

docs/backends/pekko.md

@@ -17,14 +17,14 @@ Note that you'll also need an explicit dependency on pekko-streams, as pekko-htt
 Next you'll need to add create the backend instance:
 
 ```scala mdoc:compile-only
-import sttp.client4.pekkohttp._
+import sttp.client4.pekkohttp.*
 val backend = PekkoHttpBackend()
 ```
 
 or, if you'd like to use an existing actor system:
 
 ```scala mdoc:compile-only
-import sttp.client4.pekkohttp._
+import sttp.client4.pekkohttp.*
 import org.apache.pekko.actor.ActorSystem
 
 val actorSystem: ActorSystem = ???
@@ -37,7 +37,7 @@ To set the request body as a stream:
 
 ```scala mdoc:compile-only
 import sttp.capabilities.pekko.PekkoStreams
-import sttp.client4._
+import sttp.client4.*
 
 import org.apache.pekko
 import pekko.stream.scaladsl.Source
@@ -55,7 +55,7 @@ To receive the response body as a stream:
 ```scala mdoc:compile-only
 import scala.concurrent.Future
 import sttp.capabilities.pekko.PekkoStreams
-import sttp.client4._
+import sttp.client4.*
 import sttp.client4.pekkohttp.PekkoHttpBackend
 
 import org.apache.pekko
@@ -82,7 +82,7 @@ That way, you can "mock" a server that the backend will talk to, without startin
 If your application provides a client library for its dependants to use, this is a great way to ensure that the client actually matches the routes exposed by your application:
 
 ```scala mdoc:compile-only
-import sttp.client4.pekkohttp._
+import sttp.client4.pekkohttp.*
 import org.apache.pekko
 import pekko.http.scaladsl.server.Route
 import pekko.actor.ActorSystem

docs/backends/scalaz.md

@@ -13,13 +13,13 @@ To use, add the following dependency to your project:
 
 add imports:
 
-```scala mdoc:silent
+```scala 
 import sttp.client4.armeria.scalaz.ArmeriaScalazBackend
 ```
 
 create client:
 
-```scala mdoc:compile-only
+```scala 
 val backend = ArmeriaScalazBackend()
 
 // You can use the default client which reuses the connection pool of ClientFactory.ofDefault()
@@ -28,7 +28,7 @@ ArmeriaScalazBackend.usingDefaultClient()
 
 or, if you'd like to instantiate the [WebClient](https://armeria.dev/docs/client-http) yourself:
 
-```scala mdoc:compile-only
+```scala 
 import com.linecorp.armeria.client.circuitbreaker._
 import com.linecorp.armeria.client.WebClient
 

docs/backends/synchronous.md

@@ -77,7 +77,7 @@ or, if you'd like to instantiate the OkHttpClient yourself:
 
 ```scala mdoc:compile-only
 import sttp.client4.okhttp.OkHttpSyncBackend
-import okhttp3._
+import okhttp3.*
 
 val okHttpClient: OkHttpClient = ???
 val backend = OkHttpSyncBackend.usingClient(okHttpClient)