chromedp

10,993 6 131 MIT

chromedp (14 Oct 2024) Nov 27 2019 58.1 thousand (month)

ChromeDP is an open-source library for driving browsers using the Chrome DevTools Protocol (CDP) in the Go programming language. It is a high-level library that abstracts away the low-level details of interacting with the CDP and provides a simple, intuitive API for performing common browser automation tasks such as clicking elements, filling out forms, and taking screenshots.

ChromeDP also supports parallel execution of browser tasks, making it well-suited for large-scale web scraping and testing applications. It is considered as one of the most popular Go package for automation and scraping tasks.

Example Use

package main

import (
  "context"
  "fmt"

  "github.com/chromedp/chromedp"
)

func main() {
  var title, firstParagraph string

  // create context
  ctx, cancel := chromedp.NewContext(context.Background())
  defer cancel()

  // run task list (a scraping scenario)
  err := chromedp.Run(ctx,
    // go to page
    chromedp.Navigate("https://www.example.com"),
    // wait for element to load
    chromedp.WaitVisible("body"),
    // extract text from an element (css selector)
    chromedp.Text("title", &title),
    // extract first paragraph element
    chromedp.First(chromedp.ByTagName("p"), &firstParagraph),
  )
  if err != nil {
    fmt.Println("error:", err)
    return
  }

  fmt.Printf("Title: %s\n", title)
  fmt.Printf("First paragraph: %s\n", firstParagraph)
}