list301fromhar.js

'use strict';

var _ = require('lodash');
var through = require('through');
var JSONStream = require('JSONStream');

var fs = require('fs');


fs.createReadStream(__dirname + '/vc.cn.har').pipe(JSONStream.parse('log.entries')).pipe(through(function (dat) {
  _.each(dat, function (d) {
    if (d.response.status === 301) { 
      console.log(d.request.url);
    }
  });
}));