Getting access to the Letterboxd API with mitmproxy

Letterboxd has an API but it's available by request only. This is why in the past my projects have either relied on their export functionality (like Letterboxd Gaps) or simple webscraping. This works well when you only need your own activity data, but struggles when it comes to querying multiple users and intersections of their data. But the iOS app does it just fine—enter mitmproxy. We can use it…