curl \
    --user YOUR_API_KEY: \
    --header 'Content-Type: application/json' \
    --data '{"url": "https://toscrape.com", "httpResponseBody": true}' \
    --compressed \
    https://api.zyte.com/v1/extract

from base64 import b64decode

import requests

api_response = requests.post(
    'https://api.zyte.com/v1/extract',
    auth=('YOUR_API_KEY', ''),
    json={
        'url': 'https://toscrape.com',
        'httpResponseBody': True,
    },
)
http_response_body: bytes = b64decode(
    api_response.json()['httpResponseBody']
)

# Prerequisite: install scrapy-zyte-api and configure it in transparent mode
# https://github.com/scrapy-plugins/scrapy-zyte-api

from scrapy import Spider


class ToScrapeSpider(Spider):
    name = "toscrape_com"
    start_urls = ["https://toscrape.com"]

    def parse(self, response):
        http_response_text: str = response.text

const axios = require('axios')

axios.post(
    'https://api.zyte.com/v1/extract',
    {
      url: 'https://toscrape.com',
      httpResponseBody: true
    },
    {
      auth: { username: 'YOUR_API_KEY' }
    }
  ).then((response) => {
    const httpResponseBody = Buffer.from(
      response.data.httpResponseBody,
      'base64'
    )
  })

$client = new GuzzleHttp\Client();
$response = $client->request('POST', 'https://api.zyte.com/v1/extract', [
    'auth' => ['YOUR_API_KEY', ''],
    'headers' => ['Accept-Encoding' => 'gzip'],
    'json' => [
        'url' => 'https://toscrape.com',
        'httpResponseBody' => true,
    ],
]);
$data = json_decode($response->getBody());
$http_response_body = base64_decode($data->httpResponseBody);