ricsirigu

package code.snippet

import net.liftweb.http.SHtml
import net.liftweb.http.SHtml.SelectableOption
import net.liftweb.http.js.JsCmd
import net.liftweb.http.js.JsCmds.Alert
import net.liftweb.util.Helpers._

/**
  * Created by Riccardo Sirigu on 11/11/2016.

ricsirigu

[error]  Clippy advises: did you forget to define an implicit akka.stream.ActorMaterializer?
[error]  It allows routes to be converted into a flow.
[error]  You can read more at http://doc.akka.io/docs/akka-stream-and-http-experimental/2.0/scala/http/routing-dsl/index.html

ricsirigu

//Type class pattern example in Scala, to achieve ad hoc polymorphism

case class Picture(name: String, uri: String)

case class Attachment(name: String, uri: String, visible: Boolean)

trait JsonSerializer[T]{
  def toJson(in: T): String
}

ricsirigu

trait Jsonable{
  def toJson: String
}

case class Picture(name: String, uri: String) extends Jsonable{
  override def toJson = s"picture ${name}"
}

case class Attachment(name: String, uri: String, visible: Boolean) extends Jsonable{
  override def toJson = s"attachment ${name}"

ricsirigu

// Type Class example with Type Enrichment

case class Picture(name: String, uri: String)

case class Attachment(name: String, uri: String, visible: Boolean)

trait JsonWriter[T]{
  def toJson(in: T): String
}

ricsirigu

/**
  * Created by Riccardo Sirigu on 30/06/17.
  */
object AsyncRestExample extends RestHelper{

  serve{
    case "async" :: Nil JsonGet _ =>
      val mainThreadName = Thread.currentThread.getName
      RestContinuation.async{ reply =>
        val backgroundThreadName = Thread.currentThread.getName

ricsirigu

object jwtClaims extends TransientRequestVar[Option[String]](Empty)

case class JWTAuthentication(realmName: String)(func: PartialFunction[(String, Req), Boolean]) extends HttpAuthentication {

  //Take the JWT from the Authorization header
  def credentials(r: Req): Box[String] = {

    header(r).flatMap{ token =>
      if (Jwt.isValid(sanitizeHeader(token), secret, Seq(JwtAlgorithm.HS256))) {
        Jwt.decode(sanitizeHeader(token), secret, Seq(JwtAlgorithm.HS256)) match {

ricsirigu

/**
  * Example of a custom implementation of Stripe Checkout
  *
  * https://stripe.com/docs/checkout#integration-custom
  *
  * @author Riccardo Sirigu
  */
class StripeInjector {

ricsirigu

"          _                      _          "
"   _     /||       .   .        ||\     _   "
"  ( }    \||D    '   '     '   C||/    { %  "
" | /\__,=_[_]   '  .   . '       [_]_=,__/\ |"
" |_\_  |----|                    |----|  _/_|"
" |  |/ |    |                    |    | \|  |"
" |  /_ |    |                    |    | _\  |"

	It is all fun and games until someone gets hacked!

ricsirigu

class ConditionalRendering{
  def render: (NodeSeq) => NodeSeq = {
    "#content-container" #> {if(trueness) PassThru else ClearNodes} andThen
    "#inclusions" #> {".inclusions-text *" #> { List("food", "drinks") } }                     
  }
}