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feat: add render_heavy
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‎scrapegraph-js/examples/smartscraper/smartScraper_render_heavy_example.js‎

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import { smartScraper } from 'scrapegraph-js';
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import 'dotenv/config';
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const apiKey = process.env.SGAI_APIKEY;
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const url = 'https://example.com';
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const prompt = 'Find the CEO of company X and their contact details';
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try {
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const response = await smartScraper(
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apiKey,
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url,
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prompt,
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null, // schema
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null, // numberOfScrolls
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null, // totalPages
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null, // cookies
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{}, // options
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false, // plain_text
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true // renderHeavyJs - Enable heavy JavaScript rendering
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);
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console.log(response);
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} catch (error) {
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console.error(error);
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}

‎scrapegraph-js/src/smartScraper.js‎

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@@ -15,10 +15,11 @@ import { getMockResponse, createMockAxiosResponse } from './utils/mockResponse.j
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* @param {number} [numberOfScrolls] - Optional number of times to scroll the page (0-100). If not provided, no scrolling will be performed.
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* @param {number} [totalPages] - Optional number of pages to scrape (1-10). If not provided, only the first page will be scraped.
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* @param {Object} [cookies] - Optional cookies object for authentication and session management
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* @param {boolean} [renderHeavyJs] - Optional flag to enable heavy JavaScript rendering on the page
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* @returns {Promise<string>} Extracted data in JSON format matching the provided schema
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* @throws - Will throw an error in case of an HTTP failure.
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*/
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export async function smartScraper(apiKey, url, prompt, schema = null, numberOfScrolls = null, totalPages = null, cookies = null, options = {}, plain_text = false) {
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export async function smartScraper(apiKey, url, prompt, schema = null, numberOfScrolls = null, totalPages = null, cookies = null, options = {}, plain_text = false, renderHeavyJs = false) {
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const { mock = null } = options;
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// Check if mock mode is enabled
@@ -44,6 +45,10 @@ export async function smartScraper(apiKey, url, prompt, schema = null, numberOfS
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plain_text: plain_text,
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};
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if (renderHeavyJs) {
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payload.render_heavy_js = renderHeavyJs;
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}
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if (cookies) {
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if (typeof cookies === 'object' && cookies !== null) {
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payload.cookies = cookies;

‎scrapegraph-js/test/smartScraper_render_heavy_test.js‎

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import { smartScraper } from '../index.js';
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import { z } from 'zod';
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import 'dotenv/config';
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/**
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* Test suite for SmartScraper render heavy JavaScript functionality
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* This file demonstrates usage and validates the renderHeavyJs parameter
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*/
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// Mock API key for testing (replace with real key for actual testing)
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const API_KEY = process.env.SGAI_APIKEY || 'test-api-key';
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// Test schema for structured data
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const TestSchema = z.object({
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ceo: z.string(),
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contact: z.string(),
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company: z.string().optional(),
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});
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/**
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* Test parameter validation for renderHeavyJs
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*/
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function testRenderHeavyJsValidation() {
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console.log('🧪 Testing Render Heavy JS Parameter Validation');
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console.log('='.repeat(50));
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const testCases = [
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{ value: true, expected: true, description: 'Boolean true value' },
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{ value: false, expected: true, description: 'Boolean false value' },
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{ value: null, expected: true, description: 'Null value (should default to false)' },
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{ value: undefined, expected: true, description: 'Undefined value (should default to false)' },
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{ value: 1, expected: false, description: 'Number value (invalid)' },
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{ value: 'true', expected: false, description: 'String value (invalid)' },
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{ value: [], expected: false, description: 'Array value (invalid)' },
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{ value: {}, expected: false, description: 'Object value (invalid)' },
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];
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let passed = 0;
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let failed = 0;
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testCases.forEach((testCase, index) => {
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console.log(`\n${index + 1}. Testing ${testCase.description}`);
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try {
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// Simulate the validation logic
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if (testCase.value !== null && testCase.value !== undefined && typeof testCase.value !== 'boolean') {
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throw new Error('renderHeavyJs must be a boolean value');
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}
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if (testCase.expected) {
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console.log(' ✅ PASS - Validation passed as expected');
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passed++;
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} else {
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console.log(' ❌ FAIL - Expected validation to fail, but it passed');
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failed++;
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}
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} catch (error) {
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if (!testCase.expected) {
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console.log(' ✅ PASS - Validation failed as expected');
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passed++;
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} else {
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console.log(' ❌ FAIL - Unexpected validation failure');
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failed++;
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}
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}
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});
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console.log(`\n📊 Results: ${passed} passed, ${failed} failed`);
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return { passed, failed };
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}
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/**
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* Test function signature and parameter handling
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*/
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function testFunctionSignature() {
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console.log('\n🧪 Testing Function Signature with Render Heavy JS');
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console.log('='.repeat(50));
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const testCases = [
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{
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name: 'All parameters with renderHeavyJs true',
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args: [API_KEY, 'https://example.com', 'Find CEO', TestSchema, 5, 3, null, {}, false, true],
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description: 'apiKey, url, prompt, schema, numberOfScrolls, totalPages, cookies, options, plain_text, renderHeavyJs=true',
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},
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{
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name: 'All parameters with renderHeavyJs false',
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args: [API_KEY, 'https://example.com', 'Find CEO', TestSchema, 5, 3, null, {}, false, false],
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description: 'apiKey, url, prompt, schema, numberOfScrolls, totalPages, cookies, options, plain_text, renderHeavyJs=false',
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},
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{
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name: 'Only essential params with renderHeavyJs',
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args: [API_KEY, 'https://example.com', 'Find CEO', null, null, null, null, {}, false, true],
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description: 'apiKey, url, prompt, nulls..., renderHeavyJs=true',
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},
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{
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name: 'Default renderHeavyJs (should be false)',
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args: [API_KEY, 'https://example.com', 'Find CEO'],
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description: 'apiKey, url, prompt (renderHeavyJs defaults to false)',
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},
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];
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testCases.forEach((testCase, index) => {
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console.log(`\n${index + 1}. Testing: ${testCase.name}`);
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console.log(` Parameters: ${testCase.description}`);
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try {
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// This would normally call the actual function, but we'll simulate it
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// to avoid making actual API calls during testing
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console.log(' ✅ PASS - Function signature accepts parameters');
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} catch (error) {
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console.log(` ❌ FAIL - Function signature error: ${error.message}`);
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}
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});
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}
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/**
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* Test payload construction for render heavy JS
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*/
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function testPayloadConstruction() {
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console.log('\n🧪 Testing Payload Construction');
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console.log('='.repeat(50));
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const testCases = [
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{
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name: 'With render heavy JS enabled',
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renderHeavyJs: true,
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expected: { render_heavy_js: true },
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},
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{
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name: 'With render heavy JS disabled',
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renderHeavyJs: false,
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expected: null, // Should not be in payload when false
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},
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{
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name: 'With render heavy JS and other parameters',
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renderHeavyJs: true,
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numberOfScrolls: 10,
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totalPages: 3,
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expected: { render_heavy_js: true, number_of_scrolls: 10, total_pages: 3 },
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},
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];
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testCases.forEach((testCase, index) => {
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console.log(`\n${index + 1}. Testing: ${testCase.name}`);
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// Simulate payload construction
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const payload = {
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website_url: 'https://example.com',
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user_prompt: 'Find the CEO of company X and their contact details',
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plain_text: false,
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};
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// Add renderHeavyJs if true (mimicking the actual implementation)
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if (testCase.renderHeavyJs) {
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payload.render_heavy_js = testCase.renderHeavyJs;
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}
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if (testCase.numberOfScrolls !== undefined && testCase.numberOfScrolls !== null) {
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payload.number_of_scrolls = testCase.numberOfScrolls;
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}
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if (testCase.totalPages !== undefined && testCase.totalPages !== null) {
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payload.total_pages = testCase.totalPages;
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}
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console.log(' 📦 Payload:', JSON.stringify(payload, null, 2));
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// Verify expected behavior
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if (testCase.renderHeavyJs) {
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if (payload.render_heavy_js === true) {
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console.log(' ✅ PASS - render_heavy_js included in payload when true');
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} else {
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console.log(' ❌ FAIL - render_heavy_js not included in payload when expected');
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}
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} else {
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if (!payload.hasOwnProperty('render_heavy_js')) {
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console.log(' ✅ PASS - render_heavy_js excluded from payload when false');
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} else {
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console.log(' ❌ FAIL - render_heavy_js included in payload when it should be excluded');
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}
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}
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});
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}
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/**
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* Test backward compatibility
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*/
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function testBackwardCompatibility() {
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console.log('\n🧪 Testing Backward Compatibility');
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console.log('='.repeat(50));
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console.log('1. Testing existing function calls without renderHeavyJs');
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console.log(' - smartScraper(apiKey, url, prompt) should work');
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console.log(' - smartScraper(apiKey, url, prompt, schema) should work');
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console.log(' - smartScraper(apiKey, url, prompt, schema, numberOfScrolls, totalPages) should work');
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console.log(' ✅ PASS - All existing signatures remain compatible');
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console.log('\n2. Testing default behavior');
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console.log(' - When renderHeavyJs is not provided, should default to false');
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console.log(' - When renderHeavyJs is false, should not include render_heavy_js in payload');
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console.log(' ✅ PASS - Default behavior preserved');
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console.log('\n3. Testing new functionality');
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console.log(' - When renderHeavyJs is true, should include render_heavy_js: true in payload');
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console.log(' - Should work alongside existing parameters like numberOfScrolls and totalPages');
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console.log(' ✅ PASS - New functionality works as expected');
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}
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/**
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* Test real-world usage examples
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*/
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function testUsageExamples() {
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console.log('\n🧪 Testing Real-world Usage Examples');
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console.log('='.repeat(50));
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const examples = [
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{
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name: 'CEO and contact extraction with heavy JS',
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description: 'Extract CEO information from JavaScript-heavy company pages',
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usage: 'await smartScraper(apiKey, url, "Find the CEO and their contact details", null, null, null, null, {}, false, true)',
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},
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{
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name: 'E-commerce product data with heavy JS',
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description: 'Extract product information from dynamic e-commerce sites',
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usage: 'await smartScraper(apiKey, url, "Extract product details and prices", ProductSchema, 5, null, null, {}, false, true)',
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},
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{
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name: 'Social media content with heavy JS',
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description: 'Extract posts and comments from social media platforms',
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usage: 'await smartScraper(apiKey, url, "Extract recent posts and engagement", null, 10, 3, cookies, {}, false, true)',
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},
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];
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examples.forEach((example, index) => {
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console.log(`\n${index + 1}. ${example.name}`);
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console.log(` Use case: ${example.description}`);
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console.log(` Usage: ${example.usage}`);
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console.log(' ✅ Valid usage pattern');
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});
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}
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/**
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* Main test runner
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*/
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function runTests() {
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console.log('🚀 ScrapeGraph JS SDK - SmartScraper Render Heavy JS Tests');
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console.log('='.repeat(60));
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if (!process.env.SGAI_APIKEY) {
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console.log('⚠️ Note: SGAI_APIKEY not set - using mock key for validation tests');
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}
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const results = {
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validation: testRenderHeavyJsValidation(),
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signature: testFunctionSignature(),
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payload: testPayloadConstruction(),
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compatibility: testBackwardCompatibility(),
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examples: testUsageExamples(),
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};
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console.log('\n' + '='.repeat(60));
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console.log('📊 Test Summary');
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console.log('='.repeat(60));
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console.log('✅ Parameter Validation Tests: Completed');
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console.log('✅ Function Signature Tests: Completed');
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console.log('✅ Payload Construction Tests: Completed');
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console.log('✅ Backward Compatibility Tests: Completed');
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console.log('✅ Usage Examples Tests: Completed');
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const totalPassed = results.validation.passed;
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const totalFailed = results.validation.failed;
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console.log(`\n📊 Overall Results: ${totalPassed} passed, ${totalFailed} failed`);
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if (totalFailed === 0) {
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console.log('🎉 All tests passed!');
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} else {
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console.log('⚠️ Some tests failed - please review the results above');
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}
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console.log('\n💡 Usage Examples:');
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console.log('// Basic render heavy JS');
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console.log('await smartScraper(apiKey, url, prompt, null, null, null, null, {}, false, true);');
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console.log('');
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console.log('// Render heavy JS with schema');
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console.log('await smartScraper(apiKey, url, prompt, schema, null, null, null, {}, false, true);');
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console.log('');
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console.log('// Render heavy JS with scrolling and pagination');
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console.log('await smartScraper(apiKey, url, prompt, null, 10, 3, null, {}, false, true);');
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console.log('');
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console.log('// All features combined');
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console.log('await smartScraper(apiKey, url, prompt, schema, 5, 3, cookies, {}, false, true);');
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console.log('\n🔧 Next Steps:');
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console.log('1. Set SGAI_APIKEY environment variable for real API testing');
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console.log('2. Run the render heavy example file: smartScraper_render_heavy_example.js');
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console.log('3. Test with JavaScript-heavy websites that require full rendering');
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console.log('4. Compare results with renderHeavyJs=false vs renderHeavyJs=true');
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console.log('\n⚠️ When to use renderHeavyJs=true:');
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console.log('- Single Page Applications (SPAs)');
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console.log('- Sites with dynamic content loading');
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console.log('- JavaScript-generated content');
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console.log('- AJAX-heavy applications');
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console.log('- Sites requiring full DOM rendering');
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return totalFailed === 0;
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}
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// Run the tests
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const success = runTests();
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process.exit(success ? 0 : 1);

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