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feat: loading data from api on start

This commit is contained in:
efim 2023-09-27 05:41:38 +00:00
parent f383085910
commit 9bdf180f97
2 changed files with 27 additions and 11 deletions
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4
16-countries-page-from-api/build.sbt
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@ -6,10 +6,10 @@ val toolkitTest = "org.scala-lang" %% "toolkit-test" % toolkitV
val cask = "com.lihaoyi" %% "cask" % "0.9.1" val cask = "com.lihaoyi" %% "cask" % "0.9.1"
val mainargs = "com.lihaoyi" %% "mainargs" % "0.5.4" val mainargs = "com.lihaoyi" %% "mainargs" % "0.5.4"
val requests = "com.lihaoyi" %% "requests" % "0.8.0"
ThisBuild / scalaVersion := "3.2.2" ThisBuild / scalaVersion := "3.2.2"
libraryDependencies += cask libraryDependencies ++= Seq(cask, mainargs, requests)
libraryDependencies += mainargs
libraryDependencies += toolkit libraryDependencies += toolkit
libraryDependencies += (toolkitTest % Test) libraryDependencies += (toolkitTest % Test)

34
16-countries-page-from-api/src/main/scala/example/Main.scala
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@ -5,20 +5,27 @@ import org.thymeleaf.TemplateEngine
import org.thymeleaf.context.Context import org.thymeleaf.context.Context
import cask.model.Response import cask.model.Response
import mainargs.{main, arg, ParserForMethods, Flag} import mainargs.{main, arg, ParserForMethods, Flag}
import scala.util.Try
object MinimalApplication extends cask.Routes{ object MinimalApplication extends cask.Routes {
@main @main
def run( def run(
@arg(name="port", short='p', doc="Port on which server will start service") @arg(
name = "port",
short = 'p',
doc = "Port on which server will start service"
)
portArg: Int = 8080, portArg: Int = 8080,
@arg(name="host", doc="Host on which server will start serving") @arg(name = "host", doc = "Host on which server will start serving")
hostArg: String = "localhost" hostArg: String = "localhost"
) = { ) = {
println(s"Will start server on ${hostArg}:${portArg}") println(s"Will start server on ${hostArg}:${portArg}")
val countriesDb = loadCountries() val countriesDb = loadCountries()
val server = new cask.Main { val server = new cask.Main {
override def allRoutes: Seq[cask.main.Routes] = Seq(Routes(countries = countriesDb )) override def allRoutes: Seq[cask.main.Routes] = Seq(
Routes(countries = countriesDb)
)
override def port: Int = portArg override def port: Int = portArg
override def host: String = hostArg override def host: String = hostArg
} }
@ -26,14 +33,23 @@ object MinimalApplication extends cask.Routes{
} }
def loadCountries() = { def loadCountries() = {
val countries: List[Country] = upickle.default.read[List[Country]]( val defaultCountriesData: List[Country] =
scala.io.Source.fromResource("temporary/all.json").getLines().mkString, upickle.default.read[List[Country]](
true scala.io.Source.fromResource("temporary/all.json").getLines().mkString,
true
)
val apiDataRequest = requests.get("https://restcountries.com/v3.1/all")
val apiData = Try(
upickle.default.read[List[Country]](apiDataRequest.text(), true)
) )
countries if (apiData.isFailure)
println(s"> data load failed ${apiData}")
else
println(s"> api data load is successful")
apiData.toOption.getOrElse(defaultCountriesData)
} }
def main(args: Array[String]): Unit = ParserForMethods(this).runOrExit(args) def main(args: Array[String]): Unit = ParserForMethods(this).runOrExit(args)
} }