puppeteer.Browser.newPage JavaScript and Node.js code
Best JavaScript code snippets using wPage(Showing top 15 results out of 666)(async () => {
const browser = await ()
const page = await wPage()
await (”)
await (‘. playableTile__artwork’)
await reenshot({ path: ”})
await ()})()
async getPage() {
if () {
return;}
const browser = await tBrowser();
= await wPage();
(async () => {
const browser = await ({args: [‘–no-sandbox’]});
const page = await wPage();
await (”);
await init(browser, page, observer, options);})()((observer));
const browser = await ({ headless: true})
await (‘#login_field’, )
await (‘#password’, )
await (‘[name=”commit”]’)
await page. waitForNavigation()
await reenshot({ path: screenshot})
()
(‘See screenshot: ‘ + screenshot)})()
await tViewport({ width: 1280, height: 800})
await (”, { waitUntil: ‘networkidle2’})
await page. waitForSelector(”)
await ()
(‘See screen shot: ‘ + screenshot)})()
(‘dialog’, async dialog => {
(ssage())
await dialog. dismiss()})
await page. evaluate(() => alert(‘This message is inside an alert box’))
const name = await page. $eval(‘ > a’, el => nerText)
(name)
await page. emulate(iPhone)
await reenshot({
path: ”,
fullPage: true})
(await ())
await (‘trix-editor’)
await (‘Just adding a title’)
await tCookie(cookie)
const title = await ()
(title)
await tViewport({ width: 800, height: 600})
await (132, 103, { button: ‘left’})
await tViewport(viewPort)
await reenshot(options)
await reenshot({ path: ”, fullPage: true})
(‘See screen shot: ‘ + screenshot)})()
puppeteer/api.md at main – GitHub
Interactive Documentation: API Translations: 中文|Chinese
Troubleshooting:
Releases per Chromium version:
Chromium 93. 0. 4577. 0 – Puppeteer v10. 2. 0
Chromium 92. 4512. 0
Chromium 91. 4469. 0 – Puppeteer v9. 0
Chromium 90. 4427. 0 – Puppeteer v8. 4403. 0 – Puppeteer v7. 0
Chromium 89. 4389. 0 – Puppeteer v6. 0
Chromium 88. 4298. 0 – Puppeteer v5. 5. 0
Chromium 87. 4272. 4. 0
Chromium 86. 4240. 3. 0
Chromium 85. 4182. 1
Chromium 84. 4147. 1. 0
Chromium 83. 4103. 0 – Puppeteer v3. 0
Chromium 81. 4044. 0
Chromium 80. 3987. 0 – Puppeteer v2. 0
Chromium 79. 3942. 0
Chromium 78. 3882. 0 – Puppeteer v1. 20. 0
Chromium 77. 3803. 19. 0
Chromium 76. 17. 0
Chromium 75. 3765. 15. 0
Chromium 74. 3723. 13. 0
Chromium 73. 3679. 12. 2
All releases
Table of Contents
Overview
puppeteer vs puppeteer-core
Environment Variables
Working with Chrome Extensions
class: Puppeteer
earCustomQueryHandlers()
nnect(options)
eateBrowserFetcher([options])
stomQueryHandlerNames()
faultArgs([options])
vices
puppeteer. executablePath()
([options])
tworkConditions
oduct
gisterCustomQueryHandler(name, queryHandler)
puppeteer. unregisterCustomQueryHandler(name)
class: BrowserFetcher
nDownload(revision)
wnload(revision[, progressCallback])
()
browserFetcher. localRevisions()
atform()
oduct()
(revision)
visionInfo(revision)
class: Browser
event: ‘disconnected’
event: ‘targetchanged’
event: ‘targetcreated’
event: ‘targetdestroyed’
owserContexts()
eateIncognitoBrowserContext([options])
faultBrowserContext()
browser. disconnect()
Connected()
wPage()
ocess()
s()
erAgent()
rsion()
browser. waitForTarget(predicate[, options])
Endpoint()
class: BrowserContext
owser()
earPermissionOverrides()
Incognito()
browserContext. overridePermissions(origin, permissions)
browserContext. waitForTarget(predicate[, options])
class: Page
event: ‘close’
event: ‘console’
event: ‘dialog’
event: ‘domcontentloaded’
event: ‘error’
event: ‘frameattached’
event: ‘framedetached’
event: ‘framenavigated’
event: ‘load’
event: ‘metrics’
event: ‘pageerror’
event: ‘popup’
event: ‘request’
event: ‘requestfailed’
event: ‘requestfinished’
event: ‘response’
event: ‘workercreated’
event: ‘workerdestroyed’
page. $(selector)
page. $$(selector)
page. $$eval(selector, pageFunction[,.. ])
page. $eval(selector, pageFunction[,.. $x(expression)
cessibility
dScriptTag(options)
dStyleTag(options)
thenticate(credentials)
ingToFront()
owserContext()
(selector[, options])
ntent()
okies([.. ])
verage
eatePDFStream([options])
leteCookie(okies)
page. emulate(options)
page. emulateCPUThrottling(factor)
page. emulateIdleState(overrides)
page. emulateMediaFeatures(features)
page. emulateMediaType(type)
page. emulateNetworkConditions(networkConditions)
page. emulateTimezone(timezoneId)
page. emulateVisionDeficiency(type)
page. evaluate(pageFunction[,.. evaluateHandle(pageFunction[,.. evaluateOnNewDocument(pageFunction[,.. exposeFunction(name, puppeteerFunction)
(selector)
page. goForward([options])
(url[, options])
Closed()
DragInterceptionEnabled()
JavaScriptEnabled()
yboard
inFrame()
trics()
page. queryObjects(prototypeHandle)
reenshot([options])
(selector,.. )
tBypassCSP(enabled)
tCacheEnabled([enabled])
tContent(html[, options])
tCookie(okies)
tDefaultNavigationTimeout(timeout)
tDefaultTimeout(timeout)
tDragInterception(enabled)
tExtraHTTPHeaders(headers)
tGeolocation(options)
tJavaScriptEnabled(enabled)
tOfflineMode(enabled)
tRequestInterception(value)
Cooperative Intercept Mode and Legacy Intercept Mode
Upgrading to Cooperative Mode for package maintainers
tUserAgent(userAgent[, userAgentMetadata])
tViewport(viewport)
uchscreen
acing
(selector, text[, options])
ewport()
page. waitFor(selectorOrFunctionOrTimeout[, options[,.. ]])
page. waitForFileChooser([options])
page. waitForFunction(pageFunction[, options[,.. waitForNavigation([options])
page. waitForNetworkIdle([options])
page. waitForRequest(urlOrPredicate[, options])
page. waitForResponse(urlOrPredicate[, options])
page. waitForSelector(selector[, options])
page. waitForTimeout(milliseconds)
page. waitForXPath(xpath[, options])
ers()
GeolocationOptions
WaitTimeoutOptions
class: WebWorker
webWorker. ])
webWorker. executionContext()
class: Accessibility
apshot([options])
class: Keyboard
(key[, options])
ndCharacter(char)
(text[, options])
(key)
class: Mouse
(x, y[, options])
(start, target)
mouse. dragAndDrop(start, target[, options])
mouse. dragEnter(target, data)
mouse. dragOver(target, data)
(target, data)
class: Touchscreen
(x, y)
class: Tracing
class: FileChooser
(filePaths)
Multiple()
class: Dialog
([promptText])
faultValue()
dialog. dismiss()
ssage()
class: ConsoleMessage
consoleMessage. location()
ackTrace()
class: Frame
frame. $(selector)
frame. $$(selector)
frame. ])
frame. $x(expression)
ildFrames()
frame. executionContext()
Detached()
rentFrame()
frame. ]])
frame. waitForNavigation([options])
frame. waitForSelector(selector[, options])
frame. waitForTimeout(milliseconds)
frame. waitForXPath(xpath[, options])
class: ExecutionContext
executionContext. ])
executionContext. queryObjects(prototypeHandle)
class: JSHandle
Element()
jsHandle. dispose()
jsHandle. ])
jsHandle. executionContext()
tProperties()
tProperty(propertyName)
jsHandle. jsonValue()
class: ElementHandle
elementHandle. $(selector)
elementHandle. $$(selector)
elementHandle. ])
elementHandle. $x(expression)
undingBox()
xModel()
ickablePoint([offset])
ntentFrame()
elementHandle. dispose()
(target)
elementHandle. dragAndDrop(target[, options])
elementHandle. dragEnter([data])
elementHandle. dragOver([data])
([data])
elementHandle. executionContext()
IntersectingViewport([options])
elementHandle. jsonValue()
(.. )
String()
elementHandle. uploadFile(lePaths)
class: HTTPRequest
([errorCode], [priority])
Request. abortErrorReason()
ntinue([overrides], [priority])
ntinueRequestOverrides()
Request. enqueueInterceptAction(pendingHandler)
ure()
nalizeInterceptions()
Request. headers()
itiator()
NavigationRequest()
Data()
directChain()
sourceType()
spond(response, [priority])
sponse()
sponseForRequest()
class: HTTPResponse
omCache()
omServiceWorker()
Response. headers()
moteAddress()
quest()
curityDetails()
atusText()
class: SecurityDetails
otocol()
bjectAlternativeNames()
bjectName()
lidFrom()
lidTo()
class: Target
eateCDPSession()
class: CDPSession
nnection()
(method[, ramArgs])
class: Coverage
artCSSCoverage([options])
artJSCoverage([options])
opCSSCoverage()
opJSCoverage()
class: TimeoutError
class: EventEmitter
dListener(event, handler)
(event, [eventData])
stenerCount(event)
(event, handler)
moveAllListeners([event])
moveListener(event, handler)
interface: CustomQueryHandler
Puppeteer is a Node library which provides a high-level API to control Chromium or Chrome over the DevTools Protocol.
The Puppeteer API is hierarchical and mirrors the browser structure.
NOTE On the following diagram, faded entities are not currently represented in Puppeteer.
Puppeteer communicates with the browser using DevTools Protocol.
Browser instance can own multiple browser contexts.
BrowserContext instance defines a browsing session and can own multiple pages.
Page has at least one frame: main frame. There might be other frames created by iframe or frame tags.
Frame has at least one execution context – the default execution context – where the frame’s JavaScript is executed. A Frame might have additional execution contexts that are associated with extensions.
Worker has a single execution context and facilitates interacting with WebWorkers.
(Diagram source: link)
Every release since v1. 7. 0 we publish two packages:
puppeteer
puppeteer-core
puppeteer is a product for browser automation. When installed, it downloads a version of
Chromium, which it then drives using puppeteer-core. Being an end-user product, puppeteer supports a bunch of convenient PUPPETEER_* env variables to tweak its behavior.
puppeteer-core is a library to help drive anything that supports DevTools protocol. puppeteer-core doesn’t download Chromium when installed. Being a library, puppeteer-core is fully driven
through its programmatic interface and disregards all the PUPPETEER_* env variables.
To sum up, the only differences between puppeteer-core and puppeteer are:
puppeteer-core doesn’t automatically download Chromium when installed.
puppeteer-core ignores all PUPPETEER_* env variables.
In most cases, you’ll be fine using the puppeteer package.
However, you should use puppeteer-core if:
you’re building another end-user product or library atop of DevTools protocol. For example, one might build a PDF generator using puppeteer-core and write a custom script that downloads headless_shell instead of Chromium to save disk space.
you’re bundling Puppeteer to use in Chrome Extension / browser with the DevTools protocol where downloading an additional Chromium binary is unnecessary.
you’re building a set of tools where puppeteer-core is one of the ingredients and you want to postpone script execution until Chromium is about to be used.
When using puppeteer-core, remember to change the include line:
const puppeteer = require(‘puppeteer-core’);
You will then need to call nnect([options]) or ([options]) with an explicit executablePath or channel option.
Puppeteer looks for certain environment variables to aid its operations.
If Puppeteer doesn’t find them in the environment during the installation step, a lowercased variant of these variables will be used from the npm config.
HTTP_PROXY, HTTPS_PROXY, NO_PROXY – defines HTTP proxy settings that are used to download and run the browser.
PUPPETEER_SKIP_CHROMIUM_DOWNLOAD – do not download bundled Chromium during installation step.
PUPPETEER_TMP_DIR – defines the directory to be used by Puppeteer for creating temporary files. Defaults to ().
PUPPETEER_DOWNLOAD_HOST – overwrite URL prefix that is used to download Chromium. Note: this includes protocol and might even include path prefix. Defaults to PUPPETEER_DOWNLOAD_PATH – overwrite the path for the downloads folder. Defaults to
PUPPETEER_CHROMIUM_REVISION – specify a certain version of Chromium you’d like Puppeteer to use. See ([options]) on how executable path is inferred. BEWARE: Puppeteer is only guaranteed to work with the bundled Chromium, use at your own risk.
PUPPETEER_EXECUTABLE_PATH – specify an executable path to be used in See ([options]) on how the executable path is inferred. BEWARE: Puppeteer is only guaranteed to work with the bundled Chromium, use at your own risk.
PUPPETEER_PRODUCT – specify which browser you’d like Puppeteer to use. Must be one of chrome or firefox. This can also be used during installation to fetch the recommended browser binary. Setting product programmatically in ([options]) supersedes this environment variable. The product is exposed in oduct
NOTE PUPPETEER_* env variables are not accounted for in the puppeteer-core package.
Puppeteer can be used for testing Chrome Extensions.
NOTE Extensions in Chrome / Chromium currently only work in non-headless mode.
The following is code for getting a handle to the background page of an extension whose source is located in. /my-extension:
const puppeteer = require(‘puppeteer’);
(async () => {
const pathToExtension = require(‘path’)(__dirname, ‘my-extension’);
const browser = await ({
headless: false,
args: [
`–disable-extensions-except=${pathToExtension}`,
`–load-extension=${pathToExtension}`, ], });
const targets = await s();
const backgroundPageTarget = (
(target) => () === ‘background_page’);
const backgroundPage = await ();
// Test the background page as you would any other page.
await ();})();
NOTE It is not yet possible to test extension popups or content scripts.
Puppeteer module provides a method to launch a Chromium instance.
The following is a typical example of using Puppeteer to drive automation:
const browser = await ();
const page = await wPage();
await (”);
// other actions…
Clears all registered handlers.
options
Puppeteer vs Selenium: Core Differences | BrowserStack
Even though both Puppeteer and Selenium serve the same purpose of facilitating automation testing, a comparison of them is helpful for developers and testers seeking to choose the right tool for their requirements, whether project-based or long-term. This article will explore their strengths as automation test frameworks and allow readers to make an informed choice between them. Introduction to PuppeteerPuppeteer is a Node library that provides a high-level API to control headless Chrome over the DevTools Protocol. Also known as a Headless Chrome Node API, it is useful for automating the Chrome browser to run website damentally, Puppeteer is an automation tool and not a test tool. This simply means it is incredibly popular for use cases such as scraping, generating PDFs, etc. Puppeteer uses Chrome DevTools protocol and the debugger protocol for Selenium is JSONWire. Both are used to perform clicks. In the case of practice Puppeteer and Selenium, use the same code for performing ominent Features of PuppeteerThe most prominent features supported by Puppeteer are as follows:Screenshot TestingPerformance TestingWeb ScrapingEasy AutomationLimitations of PuppeteerThe complexity and automation context are changing with each passing day and hence, one tool might not be the solution for all. Puppeteer has some limitations like, it supports only Chrome browser. Puppeteer for Firefox is a work in troduction to SeleniumSelenium automates browsers. Primarily, it is for automating web applications for testing purposes but is certainly not limited to just that. It supports numerous features that are helpful for automation testing. Selenium supports multiple programming languages and platforms. It also supports testing on multiple major browsers in global, let’s understand the pros and cons of SeleniumPros of Selenium:Open source and freely availableIntegrated with CI, and AgileSupports cross-browser, a wide range of OS and programming languagesHas huge community support along with a large library and extensionsCons of Selenium:Steep learning curveDoesn’t support built-in image comparisonExplore the various features of Selenium with this Selenium WebDriver tutorial. Try Selenium Testing for FreeMarket Trends on Selenium and PuppeteerThe image below depicts that Selenium’s popularity is long-established and keeps growing. That doesn’t imply that Puppeteer is not popular. It is especially popular when it comes to automating the Chrome are unique in their own ways Selenium does take an edge over Puppeteer in terms of overall popularity and urceSetup and Test Implementation of Puppeteer and SeleniumSelenium and Puppeteer are the two automation testing tools that can be directly installed using install Selenium, type the following command in the terminal:npm install selenium-webdriverAnother way is to study and use the Selenium Installation here. Here, creating a driver and using it is easy—the syntax is verbose compared to the alternatives but still pretty straightforward:The example below located the Yahoo sign up page using the Xpath (“);
ndElement((“//input[@id=’usernamereg-firstName’]”)). sendKeys(“Your-Name”); // Will send values to First Name tab
ndElement((“//input[@id=’usernamereg-lastName’]”)). sendKeys(“Your-Last_name”); //xpath for last name box
ndElement((“//input[@id=’usernamereg-yid’]”)). sendKeys(“”); //xpath for email box
Now, on to Puppeteer. To install Puppeteer, type the command below in the terminal:npm install puppeteerNow, let’s locate the same sign-up page using the Puppeteer syntax:await (‘);
await (‘button’);
await (‘#sign-up’, ‘your_name’);
await (‘[type=email]’, ‘your_email’);People also read: How to Build and Execute Selenium ProjectsPuppeteer vs Selenium: Core DifferencesPuppeteerSeleniumPuppeteer was developed by Google and runs the script on ChromiumSelenium is the library that is used to automate Chrome. This library is open-source and provides a high-level API to control ChromeIs a libraryIs a web framework for testing web applicationsWorks only with Chrome or Chromium and does not support other browsers. Supports multiple browsers like Chrome, IE, Firefox, Safari, etc. Cross-platform support is provided across all the available browsersWas released in 2017Was released in 2004Supports only Node. jsSupports multiple languages like Python, Ruby, Javascript, Java, pports only web automationSupports web automation and mobile automationScreenshot can be taken of both PDFs and imagesScreenshot can be taken of both PDFs and images only in Selenium 4Selenium or Puppeteer: Which is the preferred one? Considering all the above factors, Puppeteer is the go-to tool if devs and testers are specifically working with Google Browser alone. But considering the fact that cross-browser testing must be conducted across platforms and using multiple programming languages, Selenium is the best fit for automation testing. It comes with library support for multiple programming languages, drivers for different browsers, and is not always about cross-browser support or platform support, sometimes other functionalities like record and playback for testing web applications matter a lot. That’s something Selenium supports. The code can be re-used, and also it is loaded with packages and test suites. It is considered to be a tool that is the best fit for Automation testing. As ease of access and configuration is pretty simple, one doesn’t have to download Selenium like a piece of software. But they might need some of its components to run tests on automated browser instances on their own get a hang of this, simply head over to Automate Documentation. Pick a language and/or framework you typically work with. Follow the steps to install the components required, and run a couple of sample tests. It is easy to acquire a functional understanding of Selenium automation testing in no to test websites on real browsers and devices? Take a look at BrowserStack Automate, which offers instant access to a cloud Selenium Grid and 2000+ browsers and real desktop and mobile running the code detailed above using Selenium. Bear in mind that Selenium tests must be run on a real device cloud to get completely accurate results. BrowserStack’s cloud Selenium grid of 2000+ real browsers and devices allows testers to automated visual UI tests in real user conditions. Simply sign up, select a device-browser-OS combination, and start running tests for free.
Frequently Asked Questions about browser newpage
What is puppeteer browser?
Puppeteer is a Node library that provides a high-level API to control headless Chrome over the DevTools Protocol. Also known as a Headless Chrome Node API, it is useful for automating the Chrome browser to run website tests. Fundamentally, Puppeteer is an automation tool and not a test tool.Mar 26, 2021
How do I run a puppeteer in Chrome?
To use Puppeteer with a different version of Chrome or Chromium, pass in the executable’s path when creating a Browser instance: const browser = await puppeteer. launch({ executablePath: ‘/path/to/Chrome’ }); You can also use Puppeteer with Firefox Nightly (experimental support).Sep 22, 2021
What is Google puppeteer?
Puppeteer is a Node library which provides a high-level API to control headless Chrome or Chromium over the DevTools Protocol. It can also be configured to use full (non-headless) Chrome or Chromium.Feb 11, 2021