cheapest-steam

cheapest-steam.go

/*
cheapest-steam 
==============  

A crawler to retrieve cheapest item price on steam.  
```
go run main.go -url http://steamcommunity.com/market/listings/570/Taunt%3A%20Get%20Burned
```
*/

package main

import (
	"strings"
	"time"
	"flag"
	"fmt"
	"github.com/PuerkitoBio/goquery"
)

var src = flag.String("url", "", "the url of your item")
var interval = flag.Int("interval", 3, "in second")

func main() {
	flag.Parse()
	url := *src

	for ; ; time.Sleep(time.Duration(*interval)*time.Second) {
		fmt.Printf("Getting lowest price at %v...\n", url)
		doc, err := goquery.NewDocument(url)
		if err != nil {
			fmt.Printf("crawler error:", err)
			continue
		}
		s := doc.Find(".market_listing_price_with_fee").First().Text()
		s = strings.TrimSpace(s)
		fmt.Println("============================================")
		fmt.Printf("Lowest price is %v\n", s)
		fmt.Println("============================================")
	}
}