According to Activating the recorder
in the official/latest docs one has to enable recording by using CrawlRecorderSpiderMiddleware and CrawlRecorderDownloaderMiddleware middlewares which does not exist anymore.
There is however a setting in the example which has no documentation in the docs:
SCHEDULER = 'frontera.contrib.scrapy.schedulers.recording.RecorderScheduler'
According to Activating the recorder in the official/latest docs one has to enable recording by using CrawlRecorderSpiderMiddleware and CrawlRecorderDownloaderMiddleware middlewares which does not exist anymore.
There is however a setting in the example which has no documentation in the docs: SCHEDULER = 'frontera.contrib.scrapy.schedulers.recording.RecorderScheduler'