# Rendering JavaScript Some web pages render essential page elements using JavaScript, which means that some content is not present (and therefore not scrapable) with the initial page load. With the **render\_js** parameter enabled, the Shifter's Scraping API is capable of accessing the target web using a headless browser and allows JavaScript page elements to render before delivering the final scraping result. To enable JavaScript rendering, simply append the **render\_js** HTTP GET parameter to your API request URL and set it to 1. By default, this parameter is set to 0 (off). ### Rendering JavaScript examples In order to allow the rendering of JavaScript, pass **render\_js=1**. > **`GET https://scrape.shifter.io/v1?api_key=api_key&url=https://example.com&render_js=1`** **⇡ Input** {% tabs %} {% tab title="cURL" %} ```url curl --request GET --url "https://scrape.shifter.io/v1?api_key=api_key&url=https://example.com&render_js=1" ``` {% endtab %} {% tab title="NodeJS" %} ```javascript const http = require("https"); const options = { "method": "GET", "hostname": "scrape.shifter.io", "port": null, "path": "/v1?api_key=api_key&url=https://example.com&render_js=1", "headers": {} }; const req = http.request(options, function (res) { const chunks = []; res.on("data", function (chunk) { chunks.push(chunk); }); res.on("end", function () { const body = Buffer.concat(chunks); console.log(body.toString()); }); }); req.end(); ``` {% endtab %} {% tab title="Python" %} ```python import http.client conn = http.client.HTTPSConnection("scrape.shifter.io") conn.request("GET", "/v1?api_key=api_key&url=https://example.com&render_js=1") res = conn.getresponse() data = res.read() print(data.decode("utf-8")) ``` {% endtab %} {% tab title="PHP" %} ```php "https://scrape.shifter.io/v1?api_key=api_key&url=https://example.com&render_js=1", CURLOPT_RETURNTRANSFER => true, CURLOPT_ENCODING => "", CURLOPT_MAXREDIRS => 10, CURLOPT_TIMEOUT => 30, CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1, CURLOPT_CUSTOMREQUEST => "GET", ]); $response = curl_exec($curl); $err = curl_error($curl); curl_close($curl); if ($err) { echo "cURL Error #:" . $err; } else { echo $response; } ``` {% endtab %} {% tab title="Golang" %} ```go package main import ( "fmt" "net/http" "io/ioutil" ) func main() { url := "https://scrape.shifter.io/v1?api_key=api_key&url=https://example.com&render_js=1" req, _ := http.NewRequest("GET", url, nil) res, _ := http.DefaultClient.Do(req) defer res.Body.Close() body, _ := ioutil.ReadAll(res.Body) fmt.Println(res) fmt.Println(string(body)) } ``` {% endtab %} {% tab title="Java" %} ```java HttpResponse response = Unirest.get("https://scrape.shifter.io/v1?api_key=api_key&url=https://example.com&render_js=1") .asString(); ``` {% endtab %} {% tab title=".NET" %} ``` var client = new RestClient("https://scrape.shifter.io/v1?api_key=api_key&url=https://example.com&render_js=1"); var request = new RestRequest(Method.GET); IRestResponse response = client.Execute(request); ``` {% endtab %} {% tab title="Ruby" %} ```ruby require 'uri' require 'net/http' require 'openssl' url = URI("https://scrape.shifter.io/v1?api_key=api_key&url=https://example.com&render_js=1") http = Net::HTTP.new(url.host, url.port) http.use_ssl = true http.verify_mode = OpenSSL::SSL::VERIFY_NONE request = Net::HTTP::Get.new(url) response = http.request(request) puts response.read_body ``` {% endtab %} {% endtabs %} **⇣ Output** ``` Example Domain

Example Domain

This domain is for use in illustrative examples in documents. You may use this domain in literature without prior coordination or asking for permission.

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