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Pay per usage
Pricing
Pay per usage
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Jan Kuželík
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1
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3 months ago
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# Specify the base Docker image. You can read more about# the available images at https://docs.apify.com/sdk/js/docs/guides/docker-images# You can also use any other image from Docker Hub.FROM apify/actor-node:18
# Copy just package.json and package-lock.json# to speed up the build using Docker layer cache.COPY package*.json ./
# Install NPM packages, skip optional and development dependencies to# keep the image small. Avoid logging too much and print the dependency# tree for debuggingRUN npm --quiet set progress=false \ && npm install --omit=dev --omit=optional \ && echo "Installed NPM packages:" \ && (npm list --omit=dev --all || true) \ && echo "Node.js version:" \ && node --version \ && echo "NPM version:" \ && npm --version \ && rm -r ~/.npm
# Next, copy the remaining files and directories with the source code.# Since we do this after NPM install, quick build will be really fast# for most source file changes.COPY . ./
# Run the image.CMD npm start --silent{ "actorSpecification": 1, "name": "my-actor", "title": "Scrape single page in JavaScript", "description": "Scrape data from single page with provided URL.", "version": "0.0", "meta": { "templateId": "js-start" }, "input": "./input_schema.json", "dockerfile": "./Dockerfile"}{ "title": "Scrape data from a web page", "type": "object", "schemaVersion": 1, "properties": { "url": { "title": "URL of the page", "type": "string", "description": "The URL of website you want to get the data from.", "editor": "textfield", "prefill": "https://www.apify.com/" } }, "required": ["url"]}1// Axios - Promise based HTTP client for the browser and node.js (Read more at https://axios-http.com/docs/intro).2import axios from 'axios';3// Cheerio - The fast, flexible & elegant library for parsing and manipulating HTML and XML (Read more at https://cheerio.js.org/).4import * as cheerio from 'cheerio';5// Apify SDK - toolkit for building Apify Actors (Read more at https://docs.apify.com/sdk/js/).6import { Actor } from 'apify';7// this is ESM project, and as such, it requires you to specify extensions in your relative imports8// read more about this here: https://nodejs.org/docs/latest-v18.x/api/esm.html#mandatory-file-extensions9// import { router } from './routes.js';10
11// The init() call configures the Actor for its environment. It's recommended to start every Actor with an init().12await Actor.init();13
14// Structure of input is defined in input_schema.json15const input = await Actor.getInput();16const { url } = input;17
18// Fetch the HTML content of the page.19const response = await axios.get(url);20
21// Parse the downloaded HTML with Cheerio to enable data extraction.22const $ = cheerio.load(response.data);23
24// Extract all headings from the page (tag name and text).25const headings = [];26$("h1, h2, h3, h4, h5, h6").each((i, element) => {27 const headingObject = {28 level: $(element).prop("tagName").toLowerCase(),29 text: $(element).text(),30 };31 console.log("Extracted heading", headingObject);32 headings.push(headingObject);33});34
35// Save headings to Dataset - a table-like storage.36await Actor.pushData(headings);37
38// Gracefully exit the Actor process. It's recommended to quit all Actors with an exit().39await Actor.exit();# configurations.idea
# 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.ideadistnode_modulesapify_storagestorage/*!storage/key_value_storesstorage/key_value_stores/*!storage/key_value_stores/defaultstorage/key_value_stores/default/*!storage/key_value_stores/default/INPUT.json{ "name": "js-scrape-single-page", "version": "0.0.1", "type": "module", "description": "This is an example of an Apify actor.", "engines": { "node": ">=18.0.0" }, "dependencies": { "apify": "^3.1.10", "axios": "^1.5.0", "cheerio": "^1.0.0-rc.12" }, "scripts": { "start": "node ./src/main.js", "test": "echo \"Error: oops, the actor has no tests yet, sad!\" && exit 1" }, "author": "It's not you it's me", "license": "ISC"}