How to use

outbound

function

in

Array

/**
  * Appends middleware functions to pipelines
  * @param {Array} middleware
  */
 use(middleware) {
  if (middleware.inboud) {
   this.inboundMiddleware.push(middleware.inboud);
  }
  if (middleware.outbound) {
   this.outboundMiddleware.unshift(middleware.outbound);
  }
 }