currencies.go

package main

import "fmt"
import "io/ioutil"
import "net/http"
import "encoding/json"

type CurrencyResult struct {
	Currencies []Currency `json:"results"`
}

type Currency struct {
	ShortName string  `json:"shortName"`
	LongName  string  `json:"longName"`
	Value     float32 `json:"value"`
	AskValue  float32 `json:"askValue"`
	BidValue  float32 `json:"bidValue"`
}

func GetCurrencies() (currencies CurrencyResult, err error) {
	resp, err := http.Get("http://apis.is/currency/lb")
	if err != nil {
		fmt.Println("Error downloading currencies: %s", err)
		return
	}
	defer resp.Body.Close()

	body, err := ioutil.ReadAll(resp.Body)
	if err != nil {
		fmt.Println("Error in reading body: %s", err)
		return
	}

	err = json.Unmarshal(body, &currencies)
	if err != nil {
		fmt.Println("Error in unmarshaling JSON: %s", err)
		return
	}

	return
}

func main() {
	currencies, err := GetCurrencies()
	if err != nil {
		fmt.Println("Argh")
		return
	}

	for _, c := range currencies.Currencies {
		fmt.Println(c)
	}
}