HttpRequest.get_form_data for Opa

HttpRequest.get_form_data

function get_form_data() {
  function decode(s) { String.replace("+", " ", Uri.decode_string(s)) }
  match (HttpRequest.get_body()) {
  case {none}: StringMap.empty
  case {some:body}:
    match (Parser.try_parse(UriParser.query_parser, body)) {
    case {none}: StringMap.empty
    case {some:list}:
      List.fold(function((a, b), acc) {
         StringMap.add(decode(a), decode(b), acc)
       }, list, StringMap.empty)
    }
  }
}

An example of usage :

function start() {
  data_map = get_form_data()
  jlog("{data_map}")
  <form name="myForm" method="post" action="/">
    <input type="text" name="hello"/>
    <input type="file" name="file"/>
    <textarea name="world"/>
    <input type="submit"/>
  </form>
}

Server.start(Server.http, { title:"Form POST", page:start })