google 短網址服務 -- Go 版

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// urlshortpackage mainimport (        "bytes"        "encoding/json"        "fmt"        "io/ioutil"        "log"        "net/http"        "os")type apiResponse struct {        Id, Kind, LongUrl string}func main() {        longUrl := os.Args[len(os.Args)-1]        fmt.Printf("begin:%s\n", longUrl)        body := bytes.NewBufferString(fmt.Sprintf(                "{'longUrl':'%s'}",                longUrl))        request, err := http.NewRequest(                "POST",                "https://www.googleapis.com/urlshortener/v1/url",                body)        request.Header.Add("Content-Type", "application/json")        client := http.Client{}        response, err := client.Do(request)        if err != nil {                log.Fatal(err)        }

outputAsBytes, err := ioutil.ReadAll(response.Body)        response.Body.Close()        var output apiResponse        err = json.Unmarshal(outputAsBytes, &output)        if err != nil {                log.Fatal(err)        }        fmt.Printf("%s\n", longUrl)}