localhost はてブ数

app.coffee

#!/usr/bin/env coffee --nodejs --harmony

request = require 'request'
fs = require 'fs'

# mock request
#request = (str, cb)->
#  setTimeout ->
#    cb null, null, "{\"hoge\": \"#{str}\"}"
#  , 10

hatebu = 'http://api.b.st-hatena.com/entry.counts'
url = 'http%3A%2F%2Flocalhost'
file = 'result'
interval = 3000

getQuery = (ports) ->
  res = for port in ports then "url=#{url}%3A#{port}"
  res.join '&'

prettyJson = (json) ->
  res = for key of json then "#{key} #{json[key]}"
  "\n#{res.join '\n'}"

req = (ports)-> new Promise (done, reject) ->
  console.log "request port #{ports[0]} ~ #{ports[ports.length - 1]}"
  query = getQuery ports
  request "#{hatebu}?#{query}", (err, res, body)->
    if err
      reject err
      return
    fs.appendFile file, prettyJson(JSON.parse(body)), (err)->
      if err
        reject err
        return
      setTimeout done, interval

main = (count, ports)->
  unless count <= ports.length
    console.log "done! total #{Math.ceil count / 50} requested"
    return 0

  (req ports.slice(count, count + 50)).then ->
    main count + 50, ports
  , (err)->
    console.log err

main 0, [0..10000]