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is possible to use Xvfb ?
This topic was automatically generated from Slack. You can find the original thread here.
is possible to use Xvfb ?
Using Xvfb (X virtual framebuffer) directly within Pipedream workflows is not supported. Pipedream workflows run in a serverless environment where you don’t have direct access to the underlying operating system to start and manage services like Xvfb. However, you can achieve similar functionality by using headless browsers (like Puppeteer) within your Pipedream workflows. Puppeteer is a Node.js library that provides a high-level API to control Chrome or Chromium over the DevTools Protocol. It can be used to render web pages and perform actions without needing a display server like Xvfb. Here’s an example of how you can use Puppeteer in a Pipedream component: import puppeteer from "puppeteer"; export default defineComponent({ async run({ steps, $ }) { const browser = await puppeteer.launch(); const page = await browser.newPage(); await page.goto('https://example.com'); const screenshot = await page.screenshot({ path: '/tmp/example.png' }); await browser.close(); return screenshot; } });
This example launches a headless browser, navigates to a webpage, takes a screenshot, and saves it to the /tmp
directory. If you have specific use cases or need further assistance, please provide more details, and I’ll be happy to help!
I need to use puppeteer with Xvfb display
To use Puppeteer with Xvfb (X Virtual Framebuffer) on Pipedream, you can leverage the @pipedream/browsers
package which is compatible with Puppeteer. Below is an example Pipedream component that demonstrates how to set up Puppeteer with Xvfb: import { puppeteer } from '@pipedream/browsers'; import { exec } from 'child_process'; export default defineComponent({ async run({ steps, $ }) { // Start Xvfb const xvfb = exec('Xvfb :99 -screen 0 1024x768x24'); process.env.DISPLAY = ':99'; // Launch Puppeteer const browser = await puppeteer.browser(); const page = await browser.newPage(); // Navigate to a webpage await page.goto('https://pipedream.com/'); const title = await page.title(); const content = await page.content(); // Close the browser and Xvfb await browser.close(); xvfb.kill(); return { title, content }; }, });
### Explanation: 1. Start Xvfb: The exec
function from the child_process
module is used to start Xvfb with a display number :99
and a screen resolution of 1024x768x24
. 2. Set DISPLAY Environment Variable: The DISPLAY
environment variable is set to :99
to ensure Puppeteer uses the Xvfb display. 3. Launch Puppeteer: Puppeteer is launched using the @pipedream/browsers
package. 4. Navigate to a Webpage: Puppeteer navigates to a webpage and retrieves the title and content. 5. Close Browser and Xvfb: The browser and Xvfb are closed to clean up resources. This setup allows you to run Puppeteer in a headless environment with Xvfb on Pipedream. If you have any further questions or need additional assistance, feel free to ask!
is possible to use puppeteer-extra ?
Yes, it is possible to use puppeteer-extra
with Pipedream. You can leverage any package from the npm ecosystem in Pipedream’s Node.js code steps. Here’s an example of how you can use puppeteer-extra
in a Pipedream component: import { defineComponent } from "@pipedream/types"; import puppeteer from "puppeteer-extra"; import StealthPlugin from "puppeteer-extra-plugin-stealth"; puppeteer.use(StealthPlugin()); export default defineComponent({ async run({ steps, $ }) { const browser = await puppeteer.launch(); const page = await browser.newPage(); await page.goto('https://pipedream.com/'); const title = await page.title(); const content = await page.content(); await browser.close(); return { title, content }; }, });
In this example, we import puppeteer-extra
and the StealthPlugin
to enhance Puppeteer’s capabilities. The component launches a Puppeteer browser, navigates to a webpage, retrieves the title and content, and then closes the browser. If you need to use additional plugins or customize the Puppeteer instance further, you can do so by following the puppeteer-extra
documentation and integrating it into the Pipedream component as shown above.
is possible to import executablePath ?
To better assist you, could you please provide more context or clarify your question? Specifically, are you asking about importing executablePath
in a Pipedream component, or are you referring to a specific library or framework where executablePath
is used? Any additional details will help me provide a more accurate and helpful answer.
is possible to import executablePath to use with puppeteer-extra ?
Yes, it is possible to use executablePath
with puppeteer-extra
in Pipedream. Here’s an example of how you can configure puppeteer-extra
with executablePath
in a Pipedream component: import { defineComponent } from "@pipedream/types"; import puppeteer from "puppeteer-extra"; import StealthPlugin from "puppeteer-extra-plugin-stealth"; puppeteer.use(StealthPlugin()); export default defineComponent({ props: { puppeteer: { type: "app", app: "puppeteer", }, }, async run({ steps, $ }) { const browser = await puppeteer.launch({ executablePath: '/usr/bin/chromium-browser', // specify the path to the Chromium executable headless: true, }); const page = await browser.newPage(); await page.goto('https://pipedream.com/'); const title = await page.title(); const content = await page.content(); await browser.close(); return { title, content }; }, });
In this example, we use puppeteer-extra
along with the puppeteer-extra-plugin-stealth
plugin to launch a Chromium browser. The executablePath
option is set to the path of the Chromium executable. You can adjust the executablePath
to point to the correct location of the Chromium executable on your environment. Make sure to install the necessary packages by importing them at the top of your code. Pipedream will handle the installation of these packages for you.
is possible to import executablePath to use with puppeteer-extra on Pipedream ?
Yes, it is possible to import executablePath
to use with puppeteer-extra
on Pipedream. Below is an example of how you can do this in a Pipedream component: import { puppeteer } from '@pipedream/browsers'; import puppeteerExtra from 'puppeteer-extra'; import StealthPlugin from 'puppeteer-extra-plugin-stealth'; export default defineComponent({ props: { puppeteer: { type: "app", app: "puppeteer", }, }, async run({ steps, $ }) { puppeteerExtra.use(StealthPlugin()); const browser = await puppeteerExtra.launch({ executablePath: puppeteer.executablePath(), headless: true, }); const page = await browser.newPage(); await page.goto('https://pipedream.com/'); const title = await page.title(); const content = await page.content(); await browser.close(); return { title, content }; }, });
### Explanation 1. Importing Packages: We import puppeteer
from @pipedream/browsers
, puppeteer-extra
, and the StealthPlugin
from puppeteer-extra-plugin-stealth
. 2. Using Puppeteer Extra: We use puppeteer-extra
with the stealth plugin to avoid detection. 3. Launching Browser: We launch the browser using puppeteerExtra.launch
and specify the executablePath
from puppeteer
. 4. Interacting with the Page: We open a new page, navigate to a URL, and retrieve the title and content. 5. Closing Browser: We close the browser to prevent the step from hanging. 6. Returning Data: We return the title and content of the page. This setup allows you to use puppeteer-extra
with the executablePath
on Pipedream.
error occurred: puppeteer.executablePath is not a function
It looks like you’re encountering an error with Puppeteer in your Pipedream workflow. The error message puppeteer.executablePath is not a function
suggests that there might be an issue with how Puppeteer is being used or imported in your code. Here’s an example of how to properly use Puppeteer in a Pipedream component: import { puppeteer } from '@pipedream/browsers'; export default defineComponent({ async run({ steps, $ }) { const browser = await puppeteer.browser(); // Interact with the web page programmatically const page = await browser.newPage(); await page.goto('https://pipedream.com/'); const title = await page.title(); const content = await page.content(); // The browser needs to be closed, otherwise the step will hang await browser.close(); return { title, content }; }, });
In this example, we use the @pipedream/browsers
package to handle Puppeteer. This package is specifically designed to work with Pipedream’s environment. Make sure you import Puppeteer from @pipedream/browsers
and not directly from puppeteer
. If you continue to face issues, please provide more details about your code or the specific steps you’re taking, so I can assist you further.
is possible to use puppeteer-extra-plugin-portal on Pipedream ?
Yes, it is possible to use the puppeteer-extra-plugin-portal
on Pipedream. You can leverage the @pipedream/browsers
package to run Puppeteer, and then use the puppeteer-extra-plugin-portal
plugin within your Pipedream component. Here’s an example of how you can set this up: 1. Import the necessary packages. 2. Use the puppeteer-extra
package to add the plugin. 3. Launch the browser and interact with the page. Here’s a sample Pipedream component: import { puppeteer } from '@pipedream/browsers'; import puppeteerExtra from 'puppeteer-extra'; import PortalPlugin from 'puppeteer-extra-plugin-portal'; export default defineComponent({ async run({ steps, $ }) { // Add the plugin to puppeteer-extra puppeteerExtra.use(PortalPlugin()); // Launch the browser using puppeteer-extra const browser = await puppeteerExtra.launch({ headless: true, args: ['--no-sandbox', '--disable-setuid-sandbox'], }); const page = await browser.newPage(); await page.goto('https://example.com'); // Perform actions using the plugin const portal = await page.portal(); await portal.open(); // Add more interactions as needed const title = await page.title(); const content = await page.content(); await browser.close(); return { title, content }; }, });
In this example: - We import the puppeteer-extra
and puppeteer-extra-plugin-portal
packages. - We add the puppeteer-extra-plugin-portal
to puppeteer-extra
. - We launch the browser using puppeteerExtra.launch()
. - We open a new page, navigate to a URL, and interact with the page using the plugin. You can customize the interactions based on your specific requirements. This setup allows you to use the puppeteer-extra-plugin-portal
within a Pipedream workflow.
is possible to use express on pipedream ?
Yes, it is possible to use Express.js on Pipedream. You can run any Node.js code within Pipedream, including setting up an Express server. Here is an example of how you can set up a basic Express server within a Pipedream component: ```
import { axios } from “@pipedream/platform”; import express from “express”; export default defineComponent({ async run({ steps, $ }) { const app = express(); const port = 3000; app.get(‘/’, (req, res) => { res.send(‘Hello, world!’); }); app.listen(port, () => { console.log(Example app listening at http://localhost:${port}
); }); return Express server is running on port ${port}
; } });
how can I remote access the express server running on Pipedream ?
To remotely access an Express server running on Pipedream, you can follow these steps: 1. Create an Express Server: First, you’ll need to create an Express server in a Pipedream workflow. Here’s an example of how you can set up a basic Express server in a Pipedream Node.js code step: ```
import express from “express”; import { createServer } from “http”; export default defineComponent({ async run({ steps, $ }) { const app = express(); const server = createServer(app); app.get(“/”, (req, res) => { res.send(“Hello, world!”); }); const port = process.env.PORT || 3000; server.listen(port, () => { console.log(Server is running on port ${port}
); }); return Server is running on port ${port}
; }, });