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Version: 1.22

Request

Whenever the page sends a request for a network resource the following sequence of events are emitted by Page:

If request fails at some point, then instead of 'requestfinished' event (and possibly instead of 'response' event), the page.on("requestfailed") event is emitted.

note

HTTP Error responses, such as 404 or 503, are still successful responses from HTTP standpoint, so request will complete with 'requestfinished' event.

If request gets a 'redirect' response, the request is successfully finished with the 'requestfinished' event, and a new request is issued to a redirected url.

request.all_headers()

An object with all the request HTTP headers associated with this request. The header names are lower-cased.

request.failure

The method returns null unless this request has failed, as reported by requestfailed event.

Example of logging of all the failed requests:

page.on("requestfailed", lambda request: print(request.url + " " + request.failure))

request.frame

Returns the Frame that initiated this request.

request.header_value(name)

Returns the value of the header matching the name. The name is case insensitive.

request.headers

DEPRECATED Incomplete list of headers as seen by the rendering engine. Use request.all_headers() instead.

request.headers_array()

  • returns: <List[Dict]>#
    • name <str> Name of the header.
    • value <str> Value of the header.

An array with all the request HTTP headers associated with this request. Unlike request.all_headers(), header names are NOT lower-cased. Headers with multiple entries, such as Set-Cookie, appear in the array multiple times.

request.is_navigation_request()

Whether this request is driving frame's navigation.

request.method

Request's method (GET, POST, etc.)

request.post_data

Request's post body, if any.

request.post_data_buffer

Request's post body in a binary form, if any.

request.post_data_json

Returns parsed request's body for form-urlencoded and JSON as a fallback if any.

When the response is application/x-www-form-urlencoded then a key/value object of the values will be returned. Otherwise it will be parsed as JSON.

request.redirected_from

Request that was redirected by the server to this one, if any.

When the server responds with a redirect, Playwright creates a new Request object. The two requests are connected by redirectedFrom() and redirectedTo() methods. When multiple server redirects has happened, it is possible to construct the whole redirect chain by repeatedly calling redirectedFrom().

For example, if the website http://example.com redirects to https://example.com:

response = page.goto("http://example.com")
print(response.request.redirected_from.url) # "http://example.com"

If the website https://google.com has no redirects:

response = page.goto("https://google.com")
print(response.request.redirected_from) # None

request.redirected_to

New request issued by the browser if the server responded with redirect.

This method is the opposite of request.redirected_from:

assert request.redirected_from.redirected_to == request

request.resource_type

Contains the request's resource type as it was perceived by the rendering engine. ResourceType will be one of the following: document, stylesheet, image, media, font, script, texttrack, xhr, fetch, eventsource, websocket, manifest, other.

request.response()

Returns the matching Response object, or null if the response was not received due to error.

request.sizes()

  • returns: <Dict>#
    • requestBodySize <int> Size of the request body (POST data payload) in bytes. Set to 0 if there was no body.
    • requestHeadersSize <int> Total number of bytes from the start of the HTTP request message until (and including) the double CRLF before the body.
    • responseBodySize <int> Size of the received response body (encoded) in bytes.
    • responseHeadersSize <int> Total number of bytes from the start of the HTTP response message until (and including) the double CRLF before the body.

Returns resource size information for given request.

request.timing

  • returns: <Dict>#
    • startTime <float> Request start time in milliseconds elapsed since January 1, 1970 00:00:00 UTC
    • domainLookupStart <float> Time immediately before the browser starts the domain name lookup for the resource. The value is given in milliseconds relative to startTime, -1 if not available.
    • domainLookupEnd <float> Time immediately after the browser starts the domain name lookup for the resource. The value is given in milliseconds relative to startTime, -1 if not available.
    • connectStart <float> Time immediately before the user agent starts establishing the connection to the server to retrieve the resource. The value is given in milliseconds relative to startTime, -1 if not available.
    • secureConnectionStart <float> Time immediately before the browser starts the handshake process to secure the current connection. The value is given in milliseconds relative to startTime, -1 if not available.
    • connectEnd <float> Time immediately before the user agent starts establishing the connection to the server to retrieve the resource. The value is given in milliseconds relative to startTime, -1 if not available.
    • requestStart <float> Time immediately before the browser starts requesting the resource from the server, cache, or local resource. The value is given in milliseconds relative to startTime, -1 if not available.
    • responseStart <float> Time immediately after the browser starts requesting the resource from the server, cache, or local resource. The value is given in milliseconds relative to startTime, -1 if not available.
    • responseEnd <float> Time immediately after the browser receives the last byte of the resource or immediately before the transport connection is closed, whichever comes first. The value is given in milliseconds relative to startTime, -1 if not available.

Returns resource timing information for given request. Most of the timing values become available upon the response, responseEnd becomes available when request finishes. Find more information at Resource Timing API.

with page.expect_event("requestfinished") as request_info:
page.goto("http://example.com")
request = request_info.value
print(request.timing)

request.url

URL of the request.