Request fingerprinting parameters

The request fingerprinter class of scrapy-zyte-api generates request fingerprints for Zyte API requests based on the following Zyte API parameters:

• url (canonicalized).

  For URLs that include a URL fragment, like https://example.com#foo, URL canonicalization keeps the URL fragment if the request may be a browser request.

• Request attribute parameters (httpRequestBody, httpRequestText, httpRequestMethod), except headers.

  Equivalent httpRequestBody and httpRequestText values generate the same signature.

• Output parameters (browserHtml, httpResponseBody, httpResponseHeaders, responseCookies, screenshot, automatic extraction outputs like product, and customAttributes).

  Same for networkCapture, although it is not a proper output parameter (it needs to be combined with another browser rendering parameter to work).

• Rendering option parameters (actions, device, javascript, screenshotOptions, viewport, and automatic extraction options like productOptions or customAttributesOptions).

• geolocation.

• sessionContext.

  When using the session management API, session pool IDs are treated the same as sessionContext.

• followRedirect.

• echoData.

• tags.

The following Zyte API parameters are not taken into account for request fingerprinting by default:

• Request header parameters (customHttpRequestHeaders, requestHeaders).

• Request cookie parameters (cookieManagement, requestCookies).

• sessionContextParameters.

  When using the session management API, session initialization parameters are treated the same as sessionContextParameters.

• session.id.

• ipType.

• jobId.

• Experimental parameters (experimental.*).