os-scrapy-record 0.0.12

Scrapy Item Record Extension

os-scrapy-record

This project provide extensions to process Response/Failure, generate standard Item.

Install

pip install os-scrapy-record

You can run example spider directly in the project root path

scrapy crawl example

APIs

• os_scrapy_record.ResponseCallback

  • the callback method of this extension will replace the default Request.callback, process Response and generate FetchRecord
  • the callback method will not work when the request already set callback function
  • the callback method will override the parse method of spider
  • enable extension in the project settings.py file:

  EXTENSIONS = {
      "os_scrapy_record.ResponseCallback": 1,
  }
  

• os_scrapy_record.ResponseErrback

  • the errback method of this extension will replace the default Request.errback, process Failure and generate FetchRecord
  • the errback method will not work when the request already set errback function
  • enable extension in the project settings.py file:

  EXTENSIONS = {
      "os_scrapy_record.ResponseErrback": 1,
  }
  

• os_scrapy_record.FetchRecord

  This class is subclass of Item

  the mumbers of this class are:

  • request: os_scrapy_record.items.RequestItem, members: url, method, headers, body
  • meta: dict, request.meta, it is better to use lower case and '_' as separator as key
  • response: os_scrapy_record.items.ResponseItem，members: headers, body, status, ip_address(Scrapy 2.1.0+), failure

• os_scrapy_record.fetch_status.FetchStatus

  A mumber of ResponseItem, include HTTP, DNS, Network and user defined status. It is a two-tuple object: group and code. e.g, HTTP:200, DNS:-2, SERVER:111, RULE:16

Unit Tests

sh scripts/test.sh

License

MIT licensed.