Golang

package main
import (
	"encoding/json"
	"io/ioutil"
	"log"
	"net/http"
)
​
func main() {
	API_KEY: = "YOUR_API_KEY"
​
		client: = http.Client {}
	request,
	err: = http.NewRequest("GET", "https://api.wepdf.io/v1/render", nil)
​
		q: = request.URL.Query()
	q.Add("apikey", API_KEY)
	q.Add("url", "https://en.wikipedia.org/wiki/PDF")
	request.URL.RawQuery = q.Encode()
	if err != nil {
		log.Fatalln(err)
	}
​
	resp,
	err: = client.Do(request)
	if err != nil {
		log.Fatalln(err)
	}
​
	if resp.StatusCode >= 200 && resp.StatusCode < 300 {
		body,
		err: = ioutil.ReadAll(resp.Body)
		if err != nil {
			log.Fatalln(err)
		}
		// write the response to file
		ioutil.WriteFile("wepdf.pdf", body, 0644)
	}
	else {
		// An error occurred
		var result map[string] interface {}
		json.NewDecoder(resp.Body).Decode( & result)
		log.Println(result)
		log.Println(result["data"])
	}
}
​