examples

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v0.0.0-...-e3ce5c9 Latest Latest Go to latest Published: Apr 21, 2024 License: MIT

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Repository

github.com/chromedp/examples

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Open Source Insights

README ¶

About chromedp examples

This folder contains a variety of code examples for working with chromedp. The package documentation contains a number of simple examples which are self-contained, while this repository holds more complex examples which tend to require internet access or external components.

Please note that these examples may break occassionally. Additionally, since these examples are written for specific websites, there is a good chance that the current selectors, etc. break after the website they are written against changes.

While every effort is made to ensure that these examples are kept up-to-date, it is expected that the examples made available here may occasionally break.

To file issues, use the chromedp's issue tracker.

Building and Running an Example

You can build and run these examples in the usual Go way:

# retrieve examples
$ go get -u -d github.com/chromedp/examples

# run example <prog>
$ go run $GOPATH/src/github.com/chromedp/examples/<prog>/main.go

# build example <prog>
$ go build -o <prog> github.com/chromedp/examples/<prog> && ./<prog>

Available Examples

The following examples are currently available:

Example	Description
click	use a selector to click on an element
cookie	set a HTTP cookie on requests
download_file	do headless file downloads
download_image	do headless image downloads
emulate	emulate a specific device such as an iPhone
eval	evaluate javascript and retrieve the result
fast	extract and render data from a page
forecast	extract and render data from a page
geoip	extract and render data from a page
headers	add extra HTTP headers to browser requests
keys	send key events to an element
latlon	retrieve the latitude/longitude from google maps, using the browser's target events
logic	more complex logic beyond simple actions
multi	use headless-shell and a container (Docker, Podman, other)
pdf	capture a pdf of a page
proxy	authenticate a proxy server which requires authentication
remote	connect to an existing Chrome DevTools instance using a remote WebSocket URL
screenshot	take a screenshot of a specific element and of the entire browser viewport
submit	fill out and submit a form
subtree	populate and travel a subtree of the DOM
text	extract text from a specific element
upload	upload a file on a form
visible	wait until an element is visible

Contributing

Pull Requests and contributions to this project are encouraged and greatly welcomed! The chromedp project always needs new examples, and needs talented developers (such as yourself!) to submit fixes for the existing examples when they break (for example, when a website's layout/HTML changes).

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Path	Synopsis
click Command click is a chromedp example demonstrating how to use a selector to click on an element.	Command click is a chromedp example demonstrating how to use a selector to click on an element.
cookie Command cookie is a chromedp example demonstrating how to set a HTTP cookie on requests.	Command cookie is a chromedp example demonstrating how to set a HTTP cookie on requests.
download_file Command download_file is a chromedp example demonstrating how to do headless file downloads.	Command download_file is a chromedp example demonstrating how to do headless file downloads.
download_image Command download_image is a chromedp example demonstrating how to do headless image downloads.	Command download_image is a chromedp example demonstrating how to do headless image downloads.
emulate Command emulate is a chromedp example demonstrating how to emulate a specific device such as an iPhone.	Command emulate is a chromedp example demonstrating how to emulate a specific device such as an iPhone.
eval Command eval is a chromedp example demonstrating how to evaluate javascript and retrieve the result.	Command eval is a chromedp example demonstrating how to evaluate javascript and retrieve the result.
fast Command fast is a chromedp example demonstrating how to extract and render data from a page.	Command fast is a chromedp example demonstrating how to extract and render data from a page.
forecast Command forecast is a chromedp example demonstrating how to extract and render data from a page.	Command forecast is a chromedp example demonstrating how to extract and render data from a page.
geoip Command forecast is a chromedp example demonstrating how to extract and render data from a page.	Command forecast is a chromedp example demonstrating how to extract and render data from a page.
headers Command headers is a chromedp example demonstrating how to add extra HTTP headers to browser requests.	Command headers is a chromedp example demonstrating how to add extra HTTP headers to browser requests.
keys Command keys is a chromedp example demonstrating how to send key events to an element.	Command keys is a chromedp example demonstrating how to send key events to an element.
latlon Command latlon is a chromedp example demonstrating how to retrieve the latitude/longitude from google maps, using the browser's target events.	Command latlon is a chromedp example demonstrating how to retrieve the latitude/longitude from google maps, using the browser's target events.
logic Command logic is a chromedp example demonstrating more complex logic beyond simple actions.	Command logic is a chromedp example demonstrating more complex logic beyond simple actions.
multi Command multi is a chromedp example demonstrating how to use headless-shell and a container (Docker, Podman, other).	Command multi is a chromedp example demonstrating how to use headless-shell and a container (Docker, Podman, other).
pdf Command pdf is a chromedp example demonstrating how to capture a pdf of a page.	Command pdf is a chromedp example demonstrating how to capture a pdf of a page.
proxy Command proxy is a chromedp example demonstrating how to authenticate a proxy server which requires authentication.	Command proxy is a chromedp example demonstrating how to authenticate a proxy server which requires authentication.
remote Command remote is a chromedp example demonstrating how to connect to an existing Chrome DevTools instance using a remote WebSocket URL.	Command remote is a chromedp example demonstrating how to connect to an existing Chrome DevTools instance using a remote WebSocket URL.
screenshot Command screenshot is a chromedp example demonstrating how to take a screenshot of a specific element and of the entire browser viewport.	Command screenshot is a chromedp example demonstrating how to take a screenshot of a specific element and of the entire browser viewport.
submit Command submit is a chromedp example demonstrating how to fill out and submit a form.	Command submit is a chromedp example demonstrating how to fill out and submit a form.
subtree Command subtree is a chromedp example demonstrating how to populate and travel a subtree of the DOM.	Command subtree is a chromedp example demonstrating how to populate and travel a subtree of the DOM.
text Command text is a chromedp example demonstrating how to extract text from a specific element.	Command text is a chromedp example demonstrating how to extract text from a specific element.
upload Command upload is a chromedp example demonstrating how to upload a file on a form.	Command upload is a chromedp example demonstrating how to upload a file on a form.
visible Command visible is a chromedp example demonstrating how to wait until an element is visible.	Command visible is a chromedp example demonstrating how to wait until an element is visible.