Twilio Form URLEncoding to JSON mapping API Gateway template

twilio-form-urlencoding-to-json.vtl

#set ($keyValues = {})
#set($parametersString = $input.body)
#set($parameters = $parametersString.split("&"))
#foreach($parameter in $parameters)
  #set($keyValue = $parameter.split("="))
  $keyValues.put($util.urlDecode($keyValue[0]), $util.escapeJavaScript($util.urlDecode($keyValue[1])).replaceAll("\\'","'"))
#end
#set($allParams = $input.params())
{
  "request" : {
    "domainName": "$context.domainName",
    "requestPath" : "$context.path",
  #foreach($type in $allParams.keySet())
    #set($params = $allParams.get($type))
    "$type" : {
    #foreach($paramName in $params.keySet())
      "$paramName" : "$util.escapeJavaScript($params.get($paramName))"#if($foreach.hasNext),#end
    #end
    }#if($foreach.hasNext),#end
  #end
  },
#foreach($key in $keyValues.keySet())
  #set($value = $keyValues.get($key))
  "$key": "$value"#if($foreach.hasNext),#end
#end
}