Pricing
Pay per usage
This Actor demonstrates the Apify metamorph operation by processing multiple URLs with configurable delays, then transforming into another Actor to complete the work in a single continuous run.
5.0 (2)
Pricing
Pay per usage
2
2
2
Last modified
9 days ago
{ "actorSpecification": 1, "name": "metamorph-demo", "title": "Metamorph Demo Actor 🔄", "description": "Educational Actor demonstrating the metamorph operation. Takes a website URL, analyzes it, then transforms into dz_omar/universal-downloader with custom configuration based on the analysis.", "version": "1.0", "minMemoryMbytes": 128, "maxMemoryMbytes": 256, "input": "./input_schema.json", "dockerfile": "./Dockerfile"}{ "type": "object", "title": "Metamorph Test Input", "description": "Test the metamorph operation with universal-downloader", "schemaVersion": 1, "properties": { "input": { "title": "URL to Download", "type": "array", "description": "URL that will be passed to universal-downloader after metamorph", "prefill": [ { "url": "http://example.com" }, { "url": "http://example.com/some-path" } ], "editor": "requestListSources" }, "delaySeconds": { "type": "integer", "title": "Delay Between Requests", "description": "Fixed delay in seconds between processing each URL", "default": 2, "minimum": 0, "maximum": 10, "unit": "seconds" } }, "required": []}1import { Actor } from 'apify';2
3await Actor.init();4
5console.log('Starting batch metamorph test with delays...');6
7// Get input8const input = await Actor.getInput() || {};9const requestSources = input.input || [{ url: 'https://httpbin.org/bytes/1024' }]; // Array of request objects10const delaySeconds = input.delaySeconds || 2; // Fixed delay in seconds11
12// Extract URLs from request sources format13const urls = requestSources.map(source => {14 if (typeof source === 'string') {15 return source;16 } else if (source && source.url) {17 return source.url;18 }19 return null;20}).filter(url => url !== null);21
22console.log(`Processing ${urls.length} URLs with ${delaySeconds} second delay between requests`);23
24// Function to sleep25function sleep(ms) {26 return new Promise(resolve => setTimeout(resolve, ms));27}28
29// Store initial data to prove persistence30await Actor.setValue('BATCH_INFO', {31 timestamp: new Date().toISOString(),32 totalUrls: urls.length,33 delaySeconds: delaySeconds,34 message: 'Batch processing started'35});36
37// Process each URL with delays38for (let i = 0; i < urls.length; i++) {39 const currentUrl = urls[i];40 console.log(`Processing URL ${i + 1}/${urls.length}: ${currentUrl}`);41 42 // Store current processing info43 await Actor.setValue(`PROCESSING_${i}`, {44 index: i,45 url: currentUrl,46 timestamp: new Date().toISOString(),47 message: `Processing URL ${i + 1}`48 });49 50 // If it's the last URL, perform the metamorph51 if (i === urls.length - 1) {52 console.log('This is the last URL - METAMORPHING into universal-downloader...');53 54 // Create the complete batch input for the target Actor55 const batchInput = {56 "URLItem": urls.map(url => ({ url: url })),57 "proxyConfig": {58 "useApifyProxy": false59 }60 };61 62 await Actor.metamorph('dz_omar/universal-downloader', batchInput);63 64 // This line will never execute65 console.log('This should never print!');66 break;67 } else {68 // Not the last URL - add delay and continue69 const delayMs = delaySeconds * 1000;70 console.log(`Waiting ${delaySeconds} seconds before next URL...`);71 await sleep(delayMs);72 }73}# configurations.idea.vscode.zed
# crawlee and apify storage foldersapify_storagecrawlee_storagestorage
# installed filesnode_modules
# git folder.git# This file tells Git which files shouldn't be added to source control.DS_Store.idea.vscode.zeddistnode_modulesapify_storagestorage/*!storage/key_value_storesstorage/key_value_stores/*!storage/key_value_stores/defaultstorage/key_value_stores/default/*!storage/key_value_stores/default/INPUT.jsonFROM apify/actor-node:20
# Copy package files first for better Docker layer cachingCOPY package*.json ./
# Install dependenciesRUN npm install --only=prod --no-optional
# Copy the rest of the source codeCOPY . ./
# Set the command to run the ActorCMD ["npm", "start"]{ "name": "metamorph-demo-actor", "version": "1.0", "type": "module", "description": "Demonstrates Apify Actor metamorph operation.", "engines": { "node": ">=18.0.0" }, "dependencies": { "apify": "^3.4.2" }, "scripts": { "start": "node ./src/main.js", "test": "echo \"Error: oops, the Actor has no tests yet, sad!\" && exit 1" }, "keywords": [ "apify", "metamorph", "demo", "web-scraping" ], "author": "@DZ_45Omar", "license": "ISC", "repository": { "type": "git", "url": "https://github.com/DZ-ABDLHAKIM/metamorph-orchestrator" }, "files": [ "src/**/*", ".actor/actor.json", ".actor/input_schema.json", "README.md" ]}