A Micro Blog

Bearded reedlings at a wetland in Flevoland, Netherlands (© Gert-Jan IJzerman/Minden Pictures)

Boundary Trail in Mount St. Helens National Volcanic Monument, Washington (© Don Geyer/Alamy)

My puppeteer scripts now use deno.

No more need for npm in my personal stack! The native browser’s path comes from which.

  
  
    javascript
  
  
  import puppeteer from "https://deno.land/x/puppeteer@16.2.0/mod.ts";

const chrome = "chromium";  // Browser Chrome: "firefox" | "chromium" | "google-chrome" | ...
const product = "chrome";   // Product Base:   "firefox" | "chrome"

const command = new Deno.Command("which", { args: [chrome] });
const { status, stdout, stderr } = command.outputSync();
const executablePath = new TextDecoder().decode(stdout).trim();

const browser = await puppeteer.launch({
  headless: false,
  executablePath: executablePath,
  product: product,
});

const site = "example.com";
const page = await browser.newPage();

await page.setViewport({ width: 1024, height: 768 });
await page.goto("https://" + site);
await page.screenshot({ path: site + ".png" });

await page.waitForSelector('a');

const url = await page.evaluate(() => {
  return document.querySelector('a').href;
});

console.log(url);

await browser.close();

shell

deno run --allow-all main.ts

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