unfiltered jsonp example

build.sbt

libraryDependencies ++= Seq(
  "net.databinder" %% "unfiltered-jetty" % "0.4.1",
  "net.databinder" %% "unfiltered-filter" % "0.4.1",
  "net.databinder" %% "unfiltered-json" % "0.4.1"
)

curl_bad

$ curl -i 'http://localhost:3000/api' 
HTTP/1.1 400 Bad Request
Content-Length: 32
Server: Jetty(7.2.2.v20101205)

Accept:application/json required

curl_with_callback

$ curl -i 'http://localhost:3000/api?callback=jsonpcallinback' --header 'Accept:application/json'
HTTP/1.1 200 OK
Content-Type: application/json; charset=utf-8
Content-Length: 34
Server: Jetty(7.2.2.v20101205)

jsonpcallinback({"hello":"world"})

curl_without_callback

$ curl -i 'http://localhost:3000/api' --header 'Accept:application/json'
HTTP/1.1 200 OK
Content-Type: application/json; charset=utf-8
Content-Length: 17
Server: Jetty(7.2.2.v20101205)

{"hello":"world"}

example.scala

object Example {
  import unfiltered.request._
  import unfiltered.response._
  def main(args: Array[String]) {
    unfiltered.jetty.Http(3000).filter(unfiltered.filter.Planify{
       case GET(Path("/api") & Jsonp.Optional(callback)) =>
         // alternative to https://github.com/n8han/Unfiltered/blob/0.4.1/json/src/main/scala/response.scala
         JsonContent ~> ResponseString(callback.wrap("""{"hello":"world"}"""))
       case _ => BadRequest ~> ResponseString("Accept:application/json required")
    }).run
  }
}