isgd_api.go

package main

import (
	"encoding/json"
	"fmt"
	"log"
	"net/http"
	"os"
)

//This is the JSON format we get from is.gd
type AutoGenerated struct {
	Shorturl string `json:"shorturl"`
}

func main() {
	fmt.Println("is.gd API consumption")

	if len(os.Args) != 2 {
		fmt.Fprintf(os.Stderr, "Usage: %s URL\n", os.Args[0])
		os.Exit(1)
	}

	baseURL := "https://is.gd/create.php?format=json&url="
	URLToShorten := os.Args[1]
	getReqURL := baseURL + URLToShorten

	request, err := http.NewRequest("GET", getReqURL, nil)
	if err != nil {
		log.Fatal("NewRequest: ", err)
		return
	}

	client := &http.Client{}

	response, err := client.Do(request)
	if err != nil {
		log.Fatal("Do: ", err)
		return
	}

	defer response.Body.Close()

	var result AutoGenerated

	if err := json.NewDecoder(response.Body).Decode(&result); err != nil {
		log.Println(err)
	}

	fmt.Println("Shortened URL is: ", result.Shorturl)
}