Class: Playwright::Request

Inherits:
PlaywrightApi show all
Defined in:
lib/playwright_api/request.rb

Overview

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

  • ‘event: Page.request`

    emitted when the request is issued by the page.

  • ‘event: Page.response`

    emitted when/if the response status and headers are received for the request.

  • ‘event: Page.requestFinished`

    emitted when the response body is downloaded and the request is complete.

If request fails at some point, then instead of ‘’requestfinished’‘ event (and possibly instead of ’response’ event), the [‘event: Page.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.

Instance Method Summary collapse

Methods inherited from PlaywrightApi

#initialize, unwrap, wrap

Constructor Details

This class inherits a constructor from Playwright::PlaywrightApi

Instance Method Details

#all_headers ⇒ Object

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



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# File 'lib/playwright_api/request.rb', line 20

def all_headers
  wrap_impl(@impl.all_headers)
end

#apply_fallback_overrides(overrides) ⇒ Object 



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# File 'lib/playwright_api/request.rb', line 211

def apply_fallback_overrides(overrides)
  wrap_impl(@impl.apply_fallback_overrides(unwrap_impl(overrides)))
end

#failure ⇒ Object

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

Usage

Example of logging of all the failed requests:

“‘py page.on(“requestfailed”, lambda request: print(request.url + “ ” + request.failure)) “`



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# File 'lib/playwright_api/request.rb', line 34

def failure
  wrap_impl(@impl.failure)
end

#frame ⇒ Object

Returns the Frame that initiated this request.

Usage

“‘py frame_url = request.frame.url “`

Details

Note that in some cases the frame is not available, and this method will throw.

  • When request originates in the Service Worker. You can use ‘request.serviceWorker()` to check that.

  • When navigation request is issued before the corresponding frame is created. You can use [‘method: Request.isNavigationRequest`] to check that.

Here is an example that handles all the cases:



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# File 'lib/playwright_api/request.rb', line 54

def frame
  wrap_impl(@impl.frame)
end

#header_value(name) ⇒ Object

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



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# File 'lib/playwright_api/request.rb', line 75

def header_value(name)
  wrap_impl(@impl.header_value(unwrap_impl(name)))
end

#header_values(name) ⇒ Object 



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# File 'lib/playwright_api/request.rb', line 216

def header_values(name)
  wrap_impl(@impl.header_values(unwrap_impl(name)))
end

#headers ⇒ Object

An object with the request HTTP headers. The header names are lower-cased. Note that this method does not return security-related headers, including cookie-related ones. You can use [‘method: Request.allHeaders`] for complete list of headers that include cookie information.



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# File 'lib/playwright_api/request.rb', line 62

def headers
  wrap_impl(@impl.headers)
end

#headers_array ⇒ Object

An array with all the request HTTP headers associated with this request. Unlike [‘method: Request.allHeaders`], header names are NOT lower-cased. Headers with multiple entries, such as Set-Cookie, appear in the array multiple times.



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# File 'lib/playwright_api/request.rb', line 69

def headers_array
  wrap_impl(@impl.headers_array)
end

#method ⇒ Object

Request’s method (GET, POST, etc.)



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# File 'lib/playwright_api/request.rb', line 90

def method
  wrap_impl(@impl.method)
end

#navigation_request? ⇒ Boolean

Whether this request is driving frame’s navigation.

Some navigation requests are issued before the corresponding frame is created, and therefore do not have [‘method: Request.frame`] available.

Returns:

  • (Boolean) 


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# File 'lib/playwright_api/request.rb', line 84

def navigation_request?
  wrap_impl(@impl.navigation_request?)
end

#off(event, callback) ⇒ Object

– inherited from EventEmitter –



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# File 'lib/playwright_api/request.rb', line 234

def off(event, callback)
  event_emitter_proxy.off(event, callback)
end

#on(event, callback) ⇒ Object

– inherited from EventEmitter –



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# File 'lib/playwright_api/request.rb', line 228

def on(event, callback)
  event_emitter_proxy.on(event, callback)
end

#once(event, callback) ⇒ Object

– inherited from EventEmitter –



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# File 'lib/playwright_api/request.rb', line 222

def once(event, callback)
  event_emitter_proxy.once(event, callback)
end

#post_data ⇒ Object

Request’s post body, if any.



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# File 'lib/playwright_api/request.rb', line 96

def post_data
  wrap_impl(@impl.post_data)
end

#post_data_buffer ⇒ Object

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



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# File 'lib/playwright_api/request.rb', line 102

def post_data_buffer
  wrap_impl(@impl.post_data_buffer)
end

#post_data_json ⇒ Object

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.



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# File 'lib/playwright_api/request.rb', line 111

def post_data_json
  wrap_impl(@impl.post_data_json)
end

#redirected_from ⇒ Object

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()`.

Usage

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

“‘python sync response = page.goto(“example.com”) print(response.request.redirected_from.url) # “example.com” “`

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

“‘python sync response = page.goto(“google.com”) print(response.request.redirected_from) # None “`



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# File 'lib/playwright_api/request.rb', line 137

def redirected_from
  wrap_impl(@impl.redirected_from)
end

#redirected_to ⇒ Object

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

Usage

This method is the opposite of [‘method: Request.redirectedFrom`]:

“‘py assert request.redirected_from.redirected_to == request “`



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# File 'lib/playwright_api/request.rb', line 151

def redirected_to
  wrap_impl(@impl.redirected_to)
end

#resource_type ⇒ Object

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.



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# File 'lib/playwright_api/request.rb', line 159

def resource_type
  wrap_impl(@impl.resource_type)
end

#response ⇒ Object

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



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# File 'lib/playwright_api/request.rb', line 165

def response
  wrap_impl(@impl.response)
end

#service_worker ⇒ Object

The Service Worker that is performing the request.

Details

This method is Chromium only. It’s safe to call when using other browsers, but it will always be null.

Requests originated in a Service Worker do not have a [‘method: Request.frame`] available.

Raises:

  • (NotImplementedError) 


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# File 'lib/playwright_api/request.rb', line 177

def service_worker
  raise NotImplementedError.new('service_worker is not implemented yet.')
end

#sizes ⇒ Object

Returns resource size information for given request.



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# File 'lib/playwright_api/request.rb', line 183

def sizes
  wrap_impl(@impl.sizes)
end

#timing ⇒ Object

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](developer.mozilla.org/en-US/docs/Web/API/PerformanceResourceTiming).

Usage

“‘python sync with page.expect_event(“requestfinished”) as request_info:

page.goto("http://example.com")

request = request_info.value print(request.timing) “‘



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# File 'lib/playwright_api/request.rb', line 200

def timing
  wrap_impl(@impl.timing)
end

#url ⇒ Object

URL of the request.



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# File 'lib/playwright_api/request.rb', line 206

def url
  wrap_impl(@impl.url)
end