@crawlee/puppeteer
Provides a simple framework for parallel crawling of web pages using headless Chrome with Puppeteer. The URLs to crawl are fed either from a static list of URLs or from a dynamic queue of URLs enabling recursive crawling of websites.
Since PuppeteerCrawler uses headless Chrome to download web pages and extract data, it is useful for crawling of websites that require to execute JavaScript. If the target website doesn't need JavaScript, consider using CheerioCrawler, which downloads the pages using raw HTTP requests and is about 10x faster.
The source URLs are represented using Request objects that are fed from RequestList or RequestQueue instances provided by the PuppeteerCrawlerOptions.requestList or PuppeteerCrawlerOptions.requestQueue constructor options, respectively.
If both PuppeteerCrawlerOptions.requestList and PuppeteerCrawlerOptions.requestQueue are used, the instance first processes URLs from the RequestList and automatically enqueues all of them to RequestQueue before it starts their processing. This ensures that a single URL is not crawled multiple times.
The crawler finishes when there are no more Request objects to crawl.
PuppeteerCrawler opens a new Chrome page (i.e. tab) for each Request object to crawl
and then calls the function provided by user as the PuppeteerCrawlerOptions.requestHandler option.
New pages are only opened when there is enough free CPU and memory available,
as judged by the crawler's ConcurrencySystem.
Concurrency is tuned via the minConcurrency, maxConcurrency and maxRequestsPerMinute options of the PuppeteerCrawler constructor, or, for finer control, by injecting a pre-configured concurrencySystem.
Note that the pool of Puppeteer instances is internally managed by the BrowserPool class.
Example usage
const crawler = new PuppeteerCrawler({
async requestHandler({ page, request }) {
// This function is called to extract data from a single web page
// 'page' is an instance of Puppeteer.Page with page.goto(request.url) already called
// 'request' is an instance of Request class with information about the page to load
await Dataset.pushData({
title: await page.title(),
url: request.url,
succeeded: true,
})
},
async failedRequestHandler({ request }) {
// This function is called when the crawling of a request failed too many times
await Dataset.pushData({
url: request.url,
succeeded: false,
errors: request.errorMessages,
})
},
});
await crawler.run([
'http://www.example.com/page-1',
'http://www.example.com/page-2',
]);
Index
Browser management
Crawlers
Other
- AddRequestsBatchedOptions
- AddRequestsBatchedResult
- AfterCommitError
- ApifyLogAdapter
- ArgumentValidationError
- BaseCrawleeLogger
- BasicCrawler
- BasicCrawlerOptions
- BasicCrawlingContext
- BLOCKED_STATUS_CODES
- BrowserCrawler
- BrowserCrawlerOptions
- BrowserCrawlingContext
- BrowserHook
- BrowserLaunchContext
- CalculatedStatistics
- CleanupRegistrar
- coerceBoolean
- coerceNumber
- ConcurrencyConsumer
- ConcurrencySystem
- ConcurrencySystemOptions
- ConfigField
- Configuration
- ConfigurationInput
- ConfigurationOptions
- ContextMiddleware
- ContextPipeline
- ContextPipelineCleanupError
- ContextPipelineInitializationError
- CpuLoadSignal
- CpuLoadSignalOptions
- crawleeConfigFields
- CrawleeLogger
- CrawleeLoggerOptions
- CrawlerAddRequestsOptions
- CrawlerAddRequestsResult
- CrawlerRemoteBrowserOptions
- CrawlerRunOptions
- CrawlingContext
- CrawlingRequest
- createBasicRouter
- CreateSession
- createStorageTransaction
- CriticalError
- Dataset
- DatasetConsumer
- DatasetContent
- DatasetDataOptions
- DatasetExportOptions
- DatasetExportToOptions
- DatasetIteratorOptions
- DatasetMapper
- DatasetReducer
- DatasetStats
- defaultRoute
- DefaultRouteUserData
- DefaultStorageIdentifier
- EnqueueLinksOptions
- EnqueueStrategy
- EnqueueStrategyOption
- EnqueueUrlsOptions
- ErrnoException
- ErrorHandler
- ErrorTracker
- ErrorTrackerOptions
- EventLoopLoadSignal
- EventLoopLoadSignalOptions
- EventManager
- EventManagerOptions
- EventStatusMessageData
- EventType
- EventTypeName
- ExplicitStorageIdentifier
- ExtractLinksOptions
- field
- FieldsInput
- FieldsOutput
- FinalStatistics
- GetUserDataFromRequest
- GlobInput
- GlobObject
- IConcurrencySystem
- IProxyConfiguration
- IRequestLoader
- IRequestManager
- IStatistics
- IStorage
- KeyConsumer
- KeyValueStore
- KeyValueStoreIteratorOptions
- KeyValueStoreRawRecord
- KeyValueStoreStats
- LabeledSource
- LoadedRequest
- LoadSignal
- LoadSignalInfo
- LoadSignalsOptions
- LoadSignalStartContext
- LoadSnapshot
- LocalEventManager
- LocalEventManagerOptions
- log
- Log
- Logger
- LoggerJson
- LoggerOptions
- LoggerText
- LogLevel
- LogOptions
- MemoryLoadSignal
- MemoryLoadSignalOptions
- MemoryStorageBackend
- MemoryStorageOptions
- MissingSessionError
- NavigationSkippedError
- NonRetryableError
- OwnedBrowserPool
- PacingScope
- PacingSignal
- parseRetryAfterHeader
- parseValue
- PersistenceOptions
- PersistentRateLimitError
- ProxyConfiguration
- ProxyConfigurationFunction
- ProxyConfigurationOptions
- PuppeteerDirectNavigationOptions
- purgeDefaultStorages
- PushErrorMessageOptions
- RecordOptions
- RecoverableState
- RecoverableStateBaseOptions
- RecoverableStateOptions
- RecoverableStatePersistenceOptions
- RegExpInput
- RegExpObject
- Request
- RequestHandler
- RequestHandlerError
- RequestList
- RequestListOptions
- RequestListSource
- RequestListSourcesFunction
- RequestListState
- RequestLoaderStatus
- RequestManagerTandem
- RequestOptions
- RequestQueue
- RequestQueueOperationInfo
- RequestQueueOperationOptions
- RequestQueueStats
- RequestsLike
- RequestSourceStatus
- RequestState
- RequestThrottledError
- RequestTransform
- RequestValidationError
- RequireContextPipeline
- ResolvedConfigValues
- RestrictedCrawlingContext
- RetryRequestError
- RouteOptions
- Router
- RouterHandler
- RouterHandlerContext
- RouterLabel
- RouterRoutes
- RouteSchemas
- RoutesFromSchemas
- SchemaIssue
- serializeValue
- ServiceConflictError
- serviceLocator
- ServiceLocator
- Session
- SessionError
- SessionOptions
- SessionPool
- SessionPoolOptions
- SessionRetiredError
- SessionReuseStrategy
- SitemapRequestLoader
- SitemapRequestLoaderOptions
- SkippedRequestCallback
- SkippedRequestReason
- SnapshotStore
- Source
- StateConversion
- StateValidationError
- StatisticPersistedState
- Statistics
- StatisticsOptions
- StatisticState
- StatisticStateExtensionOptions
- StatusMessageCallback
- StatusMessageCallbackParams
- StorageBackend
- StorageBackendLoadSignal
- StorageBackendLoadSignalOptions
- StorageIdentifier
- StorageInstanceManager
- StorageOpenOptions
- StorageTransaction
- StorageTransactionOptions
- StorageTransactionState
- StorageTransactionView
- StorageWriteMode
- StorageWritePolicy
- SyncStateConversion
- SystemInfo
- TaskLoopPredicates
- ThrottlingRequestManager
- ThrottlingRequestManagerOptions
- TypedContextAddRequests
- TypedContextEnqueueLinks
- TypedRequestsLike
- UrlPatternInput
- useState
- UseStateOptions
- withDirectStorageAccess
- withStorageTransaction
- puppeteerUtils
- EnqueueLinksByClickingElementsOptions
- PuppeteerBrowserPoolOptions
- PuppeteerCrawlerOptions
- PuppeteerCrawlingContext
- PuppeteerLaunchContext
- InterceptHandler
- PuppeteerBrowserPool
- PuppeteerGoToOptions
- PuppeteerHook
- createPuppeteerRouter
- launchPuppeteer
Other
AddRequestsBatchedOptions
AddRequestsBatchedResult
AfterCommitError
ApifyLogAdapter
ArgumentValidationError
BaseCrawleeLogger
BasicCrawler
BasicCrawlerOptions
BasicCrawlingContext
BLOCKED_STATUS_CODES
BrowserCrawler
BrowserCrawlerOptions
BrowserCrawlingContext
BrowserHook
BrowserLaunchContext
CalculatedStatistics
CleanupRegistrar
coerceBoolean
coerceNumber
ConcurrencyConsumer
ConcurrencySystem
ConcurrencySystemOptions
ConfigField
Configuration
ConfigurationInput
ConfigurationOptions
ContextMiddleware
ContextPipeline
ContextPipelineCleanupError
ContextPipelineInitializationError
CpuLoadSignal
CpuLoadSignalOptions
crawleeConfigFields
CrawleeLogger
CrawleeLoggerOptions
CrawlerAddRequestsOptions
CrawlerAddRequestsResult
CrawlerRemoteBrowserOptions
CrawlerRunOptions
CrawlingContext
CrawlingRequest
createBasicRouter
CreateSession
createStorageTransaction
CriticalError
Dataset
DatasetConsumer
DatasetContent
DatasetDataOptions
DatasetExportOptions
DatasetExportToOptions
DatasetIteratorOptions
DatasetMapper
DatasetReducer
DatasetStats
defaultRoute
DefaultRouteUserData
DefaultStorageIdentifier
EnqueueLinksOptions
EnqueueStrategy
EnqueueStrategyOption
EnqueueUrlsOptions
ErrnoException
ErrorHandler
ErrorTracker
ErrorTrackerOptions
EventLoopLoadSignal
EventLoopLoadSignalOptions
EventManager
EventManagerOptions
EventStatusMessageData
EventType
EventTypeName
ExplicitStorageIdentifier
ExtractLinksOptions
field
FieldsInput
FieldsOutput
FinalStatistics
GetUserDataFromRequest
GlobInput
GlobObject
IConcurrencySystem
IProxyConfiguration
IRequestLoader
IRequestManager
IStatistics
IStorage
KeyConsumer
KeyValueStore
KeyValueStoreIteratorOptions
KeyValueStoreRawRecord
KeyValueStoreStats
LabeledSource
LoadedRequest
LoadSignal
LoadSignalInfo
LoadSignalsOptions
LoadSignalStartContext
LoadSnapshot
LocalEventManager
LocalEventManagerOptions
log
Log
Logger
LoggerJson
LoggerOptions
LoggerText
LogLevel
LogOptions
MemoryLoadSignal
MemoryLoadSignalOptions
MemoryStorageBackend
MemoryStorageOptions
MissingSessionError
NavigationSkippedError
NonRetryableError
OwnedBrowserPool
PacingScope
PacingSignal
parseRetryAfterHeader
parseValue
PersistenceOptions
PersistentRateLimitError
ProxyConfiguration
ProxyConfigurationFunction
ProxyConfigurationOptions
PuppeteerDirectNavigationOptions
purgeDefaultStorages
PushErrorMessageOptions
RecordOptions
RecoverableState
RecoverableStateBaseOptions
RecoverableStateOptions
RecoverableStatePersistenceOptions
RegExpInput
RegExpObject
Request
RequestHandler
RequestHandlerError
RequestList
RequestListOptions
RequestListSource
RequestListSourcesFunction
RequestListState
RequestLoaderStatus
RequestManagerTandem
RequestOptions
RequestQueue
RequestQueueOperationInfo
RequestQueueOperationOptions
RequestQueueStats
RequestsLike
RequestSourceStatus
RequestState
RequestThrottledError
RequestTransform
RequestValidationError
RequireContextPipeline
ResolvedConfigValues
RestrictedCrawlingContext
RetryRequestError
RouteOptions
Router
RouterHandler
RouterHandlerContext
RouterLabel
RouterRoutes
RouteSchemas
RoutesFromSchemas
SchemaIssue
serializeValue
ServiceConflictError
serviceLocator
ServiceLocator
Session
SessionError
SessionOptions
SessionPool
SessionPoolOptions
SessionRetiredError
SessionReuseStrategy
SitemapRequestLoader
SitemapRequestLoaderOptions
SkippedRequestCallback
SkippedRequestReason
SnapshotStore
Source
StateConversion
StateValidationError
StatisticPersistedState
Statistics
StatisticsOptions
StatisticState
StatisticStateExtensionOptions
StatusMessageCallback
StatusMessageCallbackParams
StorageBackend
StorageBackendLoadSignal
StorageBackendLoadSignalOptions
StorageIdentifier
StorageInstanceManager
StorageOpenOptions
StorageTransaction
StorageTransactionOptions
StorageTransactionState
StorageTransactionView
StorageWriteMode
StorageWritePolicy
SyncStateConversion
SystemInfo
TaskLoopPredicates
ThrottlingRequestManager
ThrottlingRequestManagerOptions
TypedContextAddRequests
TypedContextEnqueueLinks
TypedRequestsLike
UrlPatternInput
useState
UseStateOptions
withDirectStorageAccess
withStorageTransaction
InterceptHandler
Type declaration
Parameters
request: PuppeteerRequest
Returns unknown
PuppeteerBrowserPool
PuppeteerGoToOptions
PuppeteerHook
Type parameters
- UserData: Dictionary = any
A BrowserPool of Puppeteer browsers, as built by puppeteerBrowserPool.