code: function randoService(incomingPayload, cb) {
  
    var buf = dataUriToBuffer(incomingPayload.content.data)
  
    randomRevisitor(buf.imgType, postToRandom)
  
    function postToRandom(err, randomUrl) {
      if (err) return cb(err)
  
      request.post({
        json: true,
        url: randomUrl + '/service',
        body: incomingPayload
      }, function (err, response, body) {
        if (body && !body.content)
          console.error('Something went wrong connecting to: ' + randomUrl)
  
        if (err) return cb(err)
  
        return cb(null, (body && body.content && body.content.data) ? body : incomingPayload)
      })
  
    }
  
  }
docs: incomingPayload should be an object that matches http://revisit.link/spec.html