我正在尝试将Binding.scala与现有的http4s后端服务一起使用,但有点失去了它们如何组合在一起。我不确定如何用Binding.scala“绑定”说fs2 Task
或cat-effect IO
。
答案 0 :(得分:0)
我从未使用过http4s,但提示可能是FutureBinding。
只要你有一个未来,你可以很好地使用它:
这是我调用异步webservice(ajax-call)的例子:
@dom def afClients(): Binding[HTMLElement] = {
val apiPath = s"/calendar/afClients"
FutureBinding(Ajax.get(apiPath))
.bind match {
case None =>
<div class="ui active inverted dimmer front">
<div class="ui large text loader">Loading</div>
</div>
case Some(Success(response)) =>
val json = Json.parse(response.responseText)
info(s"Json received List[AFClientConfig]: ${json.toString().take(20)}")
json.validate[List[AFClientConfig]] match {
case JsSuccess(u, _) =>
changeAFClients(u)
<div>
</div>
case JsError(errors) =>
<div>
{s"Problem parsing User: ${errors.map(e => s"${e._1} -> ${e._2}")}"}
</div>
}
case Some(Failure(exception)) =>
error(exception, s"Problem accessing $apiPath")
<div>
{exception.getMessage}
</div>
}
}