Struct Request

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pub struct Request { /* private fields */ }
Expand description

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.

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impl Request

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pub fn method(&self) -> Result<String, Error>

Request’s method (GET, POST, etc.)

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pub fn resource_type(&self) -> Result<String, Error>

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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pub fn url(&self) -> Result<String, Error>

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pub fn is_navigation_request(&self) -> Result<bool, Error>

Whether this request is driving frame’s navigation.

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pub fn frame(&self) -> Frame

Returns the Frame that initiated this request.

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pub fn post_data(&self) -> Result<Option<Vec<u8>>, Error>

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pub fn post_post_as_string(&self) -> Result<Option<String>, Error>

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pub fn headers(&self) -> Result<HashMap<String, String>, Error>

An object with HTTP headers associated with the request. All header names are lower-case.

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pub fn redirected_from(&self) -> Result<Option<Request>, Error>

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:

const response = await page.goto('http://example.com');
console.log(response.request().redirectedFrom().url()); // 'http://example.com'

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

const response = await page.goto('https://google.com');
console.log(response.request().redirectedFrom()); // null
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pub async fn redirected_to(&self) -> Result<Option<Request>, Error>

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pub async fn response(&self) -> Result<Option<Response>, Arc<Error>>

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

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pub fn failure(&self) -> Result<Option<String>, Error>

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', request => {
 console.log(request.url() + ' ' + request.failure().errorText);
});
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pub fn timing(&self) -> Result<Option<ResponseTiming>, Error>

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.

const [request] = await Promise.all([
 page.waitForEvent('requestfinished'),
 page.goto('http://example.com')
]);
console.log(request.timing());
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pub fn response_end(&self) -> Result<Option<f64>, Error>

Trait Implementations§

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impl Clone for Request

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fn clone(&self) -> Request

Returns a duplicate of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl PartialEq for Request

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fn eq(&self, other: &Self) -> bool

Tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

Auto Trait Implementations§

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.