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ZIO live session - Writing a more complex application / published by https://github.com/dacr/code-examples-manager #fb874ad4-4adc-489a-95ba-5c16198a8782/9eb69a2d160eaff6f5f04f4786ab34957584159e
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| // summary : ZIO live session - Writing a more complex application | |
| // keywords : scala, zio, live, demo, pure-functional, @testable | |
| // publish : gist | |
| // authors : David Crosson | |
| // license : Apache License Version 2.0 (https://www.apache.org/licenses/LICENSE-2.0.txt) | |
| // id : fb874ad4-4adc-489a-95ba-5c16198a8782 | |
| // created-on : 2021-09-26T16:27:18+02:00 | |
| // managed-by : https://github.com/dacr/code-examples-manager | |
| // run-with : scala-cli $file | |
| // --------------------- | |
| //> using scala "3.4.2" | |
| //> using dep "dev.zio::zio:2.0.13" | |
| //> using dep "com.softwaremill.sttp.client3::async-http-client-backend-zio:3.8.15" | |
| //> using dep "com.softwaremill.sttp.client3::zio-json:3.8.15" | |
| //> using dep "fr.janalyse::zio-worksheet:2.0.13.0" | |
| //> using dep "org.slf4j:slf4j-simple:2.0.7" | |
| // --------------------- | |
| import zio.* | |
| import zio.json.* | |
| import zio.worksheet.* | |
| import sttp.client3.ziojson.* | |
| import sttp.client3.* | |
| import sttp.client3.asynchttpclient.zio.* | |
| case class ClientInfo(clientIP: String, userAgent: String) | |
| object ClientInfo: | |
| implicit val codec: JsonCodec[ClientInfo] = DeriveJsonCodec.gen | |
| // ----------------------------------------------------------------------------------------- | |
| val app = | |
| for | |
| _ <- ZIO.log("Application starts") | |
| backend <- ZIO.service[SttpBackend[Task, Any]] | |
| response <- backend.send(basicRequest.get(uri"https://mapland.fr/clientInfo").response(asJson[ClientInfo])) | |
| clientInfo <- ZIO.from(response.body) | |
| _ <- ZIO.log(s"my ip is ${clientInfo.clientIP}") | |
| _ <- ZIO.log("Application ends") | |
| yield clientInfo | |
| app.provideLayer(AsyncHttpClientZioBackend.layer()).unsafeRun | |
| // ----------------------------------------------------------------------------------------- | |
| val stub = | |
| AsyncHttpClientZioBackend.stub | |
| .whenRequestMatches(_.uri.toString() == "https://mapland.fr/clientInfo") | |
| .thenRespond("""{"clientIP":"127.0.0.1","userAgent":"curl/42"}""") | |
| app.provideLayer(ZLayer.succeed(stub)).unsafeRun |
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