access_key="YOUR_ACCESS_KEY"
api_url="https://api.apiflash.com/v1/urltoimage"
url="http://google.com"

curl --request GET --url "${api_url}?access_key=${access_key}&url=${url}" > screenshot.jpeg

package main

import (
	"io"
	"net/http"
	"os"
)

func main() {

	apiUrl := "https://api.apiflash.com/v1/urltoimage"
	request, _ := http.NewRequest("GET", apiUrl, nil)
	query := request.URL.Query()
	query.Add("url", "http://google.com")
	query.Add("access_key", "YOUR_ACCESS_KEY")
	request.URL.RawQuery = query.Encode()

	client := &http.Client{}
	response, _ := client.Do(request)
	defer response.Body.Close()

	image, _ := os.Create("screenshot.jpeg")
	io.Copy(image, response.Body)
	image.Close()

}

import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.URL;

public class Main {

    public static void main(String[] args) throws Exception {

        String accessKey = "YOUR_ACCESS_KEY";
        String apiUrl = "https://api.apiflash.com/v1/urltoimage";
        URL url = new URL(String.format("%s?access_key=%s&url=http://google.com", apiUrl, accessKey));
        InputStream inputStream = url.openStream();
        OutputStream outputStream = new FileOutputStream("screenshot.jpeg");

        byte[] b = new byte[2048];
        int length;

        while ((length = inputStream.read(b)) != -1) {
            outputStream.write(b, 0, length);
        }

        inputStream.close();
        outputStream.close();
    }
}

var fs = require('fs'),
    request = require('request');

request({
    url: "https://api.apiflash.com/v1/urltoimage",
    encoding: "binary",
    qs: {
        url: "http://google.com",
        access_key: "YOUR_ACCESS_KEY"
    }
}, function (error, response, body) {
    fs.writeFile("screenshot.jpeg", body, "binary", function (err) {
    });
});

<?php

$params = http_build_query(array(
    "url" => "http://google.com",
    "access_key" => "YOUR_ACCESS_KEY"
));

$image_data = file_get_contents("https://api.apiflash.com/v1/urltoimage?" . $params);
file_put_contents("screenshot.jpeg", $image_data);

?>

from urllib.parse import urlencode
from urllib.request import urlretrieve

params = urlencode({"url": "http://google.com", "access_key": "YOUR_ACCESS_KEY"})
urlretrieve("https://api.apiflash.com/v1/urltoimage?" + params, "screenshot.jpeg")

require "open-uri"

File.open('screenshot.jpeg', 'wb') do |fo|
  params = URI.encode_www_form("url" => "http://google.com",
                               "access_key" => "YOUR_ACCESS_KEY")
  fo.write open("https://api.apiflash.com/v1/urltoimage?" + params).read
end