Facebook Ads Library centralizes every single Ads that's published on Facebook. Past and Present. It is meant as an effort by Facebook for more transparency and also happens to be a clever tool for marketers and growth-hackers responsible of marketing/competition intelligence. Set this Facebook Ads Library scraper up and extract every single Ads that's published by a list of competitors. You'll have every possible information from the date of publication to the title and description, images, videos, etc.
Note: URL provided must be similar with this structure: https://www.facebook.com/ads/library/?active_status=all&ad_type=all&country=ALL&view_all_page_id=15087023444&search_type=page&media_type=all